monarch on swamp weed in our yard 2026

September Garden Tips

Hello Friends, Neighbors, Fellow Gardeners,

Happy Labor Day! Here are some garden tips, educational opportunities, and videos for September. Some upcoming events/resources include Natives at Noon: Lunch & Learn Webinar Series, Montgomery Parks – Events: Agricultural History Farm Park: Hiking Histories, Brookside Gardens: Pop-Up Exploration Cart – Insects, The Butterfly Experience, Meadowside Nature Center: Vulture Awareness Day Celebration, Walk Up Bird Walk, and Meadowside Celebration!, Seneca Creek State Park September Programs; Less Lawn, More Life with Native Plants: Part 2 – Practical Tips @ Gaithersburg Library, Montgomery College: Lifelong Learning Home and Garden Classes – Fall 2026, Fall 2026 Environmental Horticulture classes, Maryland Native Plant Society Conference, and more! A lot of gardening events are announced on Facebook as well as on our website. These events will be hosted as online or in-person events.


Planning Tips

  • It is harvest time and also a good time to start taking stock of what worked well for this season and what didn’t.
  • The heat of the summer is here. Time to start doing chores during early morning or evening. Take a break during the hottest parts of the day.
  • Take garden photos and make notes in your garden journal.
  • Check your local garden center for end-of-summer bargains.
  • Attend a local garden club meeting or plant exchange.
  • Peruse fall bulb catalogs.
  • Plan who is going to water plants during your vacation.
  • Plan where fall bulbs to go.
  • Plan landscape design projects.
  • Design new beds and gardens.
  • Clean, sharpen, and store your garden tools.
  • Repair your shed and repair/paint your fences.
  • Check out gardening books from your local library to read.
  • Pick up new gardening books and magazines for inspiration.
  • Volunteer at a local public or historic garden.
  • Plan for 2027 with these Free resources: Landscaping with Native Plants by the Maryland Native Plant Society, Plant Invaders of Mid-Atlantic Natural Areas by the National Park Service, Master Gardeners of Northern Virginia Reading Room. Visit our Online Gardening Resources page for more helpful online resources.
  • Buy a good gardening book or magazine subscription for a gift for your favorite gardener.
  • Have a question about gardening? Check the University of Maryland Extension’s New Maryland Grows blog for garden tips.

Join Mill Creek Towne Garden Club!

MCTGC Join Us Photo Collage
  • Are you interested in gardening? Perhaps you’re a beginner, looking to learn more, or an experienced gardener interested in sharing your experiences and learning from others?
  • Are you interested in making your home and community a more beautiful place to live?
  • Are you interested in getting more involved in your community and getting to know your neighbors better?

Visit Our MCT Garden Club Website for Gardening Resources

online gardening resources
  • Local Gardening Resources: Looking for a Master Gardener as a guest speaker, need gardening advice, or want to learn about resources in or near Mill Creek Towne? Visit our Resources page for details.
  • MCTGC Blog: Check our monthly blog for garden tips and local/online garden-related events.
  • Gardening Books: Looking for a gift for your favorite gardener? Visit our Gardening Books Resources page for holiday gift ideas.
  • Local Gardens: Visit our Local Gardens page to learn about local gardens in our area.
  • Montgomery County Farmers’ Markets: Support our local farmers. Check this page to learn about local farmers markets in our area or join a CSA and get fresh local produce year-round!
  • Online Gardening Resources: Looking for gardening apps or online resources to help with your gardening? Check out our Online Gardening Resources page for some apps for your smartphone and online gardening resources focused on the DMV area.
  • Recipes: Looking for a recipe for your home-grown veggies and fruit? Check our Recipes page for ideas.

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Maryland Grows Blog

In weekly posts on MD HGIC’s blog, learn about pollinator conservation, growing native plants and food, and how to solve plant pest and disease problems.

MD HGIC Video Tips

Our Extension experts are sharing one-minute video tips to help you in the garden this summer. We’re talking about pest management in the vegetable gardentree and lawn diseases, native plantsmowing lawns, and more!

For more information, please visit:

https://marylandgrows.umd.edu/


Montgomery County Master Gardeners logo

Montgomery County Master Gardeners - Maryland

What can Master Gardeners do for you?

  • Help you select and care for annual and perennial plants, shrubs and trees.
  • Determine if you need to test your soil.
  • Provide you with information on lawn care.
  • Identify weeds, beneficial and noxious insects, and plant diseases and remedies.
  • Teach you how to use pesticides, mulch and compost.
  • Guide you in pruning trees and shrubs.
  • Provide you with options for managing wildlife.
  • Provide you with gardening resources.
  • Help you submit a plant sample for diagnosis

Plant Clinics are held at several sites in the county on a weekly basis and at special events such as garden festivals and the county fair. Regularly scheduled Plant Clinics are located at public libraries and farmers’ markets throughout the county as well as at the Audubon Naturalist Society in Chevy Chase.  There are also clinics three days per week at Brookside Gardens.  The busiest season is April through September, but some clinics are open year-round.  Bring your plant samples and questions to one of these locations in Montgomery County, MD (see link below to find a location near you):

https://extension.umd.edu/mg/locations/plant-clinics


UMD Home and Garden Information Center: Ask a Master Gardener

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Do you have a gardening question? Our Certified Professional Horticulturists, faculty, and Master Gardener Volunteers are ready to answer – year-round!

See below to ask a master gardener a question on the UMD Extension website:


Buy Fresh Produce and Support Farms at County Farmers Markets

derwood farmers market

The 9th season of the Derwood Farmers Market is here! Come enjoy fresh produce, live music, friends & food trucks.

16501 Redland Rd, Rockville, MD 20855

SATURDAYS, 9AM – 1PM​
until October 10, 2026

Visit the Derwood Farmers Market on Saturdays and enjoy the amazing flavors our food and beverage vendors are bringing to the table! Whether you’re planning your market brunch, stocking up on fresh-baked treats, or cooling off with a smoothie, there’s something delicious waiting for you. Our market participates in nutrition assistance programs including eWIC & matching dollars for SNAP. The Derwood Market also collects food scraps for composting through a partnership with the Department of Environmental Protection. 

Ready to plan your first taste adventure? See the full list of vendors here:
www.milkladymarkets.org/derwood-market​

We can’t wait to see you! Let’s celebrate fresh flavors, good company, and our amazing community together.


Maryland’s Best Native Plant Program

The Maryland Department of Agriculture (MDA) in partnership with University of Maryland Extension, the Department of Natural Resources, and the Maryland Native Plant Society is proud to introduce the MDA’s Maryland’s Best Native Plant Program.

This program aims to bring education, awareness, and recognition to consumers and producers about the importance of native plants by:

  1. creating a Commercial Maryland Native Plant List to help nurseries and consumers choose the most attractive and best plants for the environment
  2. recognizing retailers, wholesalers, and growers who are selling native plants via a tiered (bronze, silver, gold), voluntary certification program, and helping consumers know where to buy native plants
  3. providing marketing materials- including a MD Native Plant logo- to help consumers identify what’s native to Maryland

pollinator plants
(Photo: Xerces Society / Jennifer Hopwood)

Check out the revised list of Mid-Atlantic native plants for pollinators and beneficial insects, from the Xerces Society.


Flowers and Groundcovers

  • Don’t fertilize plants that slow down in heat, but keep them watered.
  • Take cuttings from coleus and begonias to propagate and over-winter indoors.
  • Plant hardy mums and fall season annuals.
  • Dig up bulbs from your Gladiolus, Canna, Caladiums, and other tender bulbs; cut off foliage; let dry for a week; and store for the winter.
  • Start bulb plantings of early spring bloomers at the end of the month.
  • Your summer annuals will be reviving, now with cooler temps and some rain. Cut back any ragged growth and give them some fertilizer. They should put on a good show until the first hard frost.
  • Start shopping for spring bulbs.
  • Divide and transplant perennials – in particular, peony and iris.
  • Preserve dry flowers for display in the fall.
  • Renew your container plantings, which may be looking a bit ragged at this point. Pinch back overgrown plants. Pull out any spent ones and pop in some substitute annuals or mums. Keep them well-watered and add a little liquid fertilizer every few weeks to keep them going through early autumn.
  • Stake and tie-up any tall-growing perennials such as phlox or delphiniums.
  • Start collecting plant seeds for next year and for trading.
  • Put out slug traps around your vulnerable hostas.
  • Feed your roses and new plantings with slow-release fertilizer sparingly.
  • Tie-up clematis and other fast-growing climbing vines.
  • Hose off aphids, white flies, or spider mites on your roses or other perennials.
  • Check pots and containers daily for water needs.
  • Look for evidence of pest or fungal disease throughout your garden.
  • Weed and weed some more.
  • Check for black spot on your roses – remove and discard any affected leaves in the trash, never back into your garden or in your compost – apply fungicide with Neem oil every two weeks during the growing season.
  • Inspect for powdery mildew. If seen, prune back perennials to create needed circulation. Discard properly (i.e., not in your compost bin).
  • Rake up weeds and their seedlings, especially look for fast-growing vines such as honeysuckle, autumn clematis, bittersweet, wild grape, Virginia creeper, and poison ivy.
  • Pests to watch for: Aphids, spidermites, whiteflies, snails, slugs, deer, voles
  • Diseases to watch for:  bacterial diseases, Blackspot on roses, Fungal leaf spot, powdery mildew, rust
  • See UMD’s HGIC Garden Tips for more details.
  • For a list of native plant resources, visit: https://extension.umd.edu/hgic/topics/native-plant-resources
Native Plants for Wildlife Habitat and Conservation Landscaping


5 Million Trees Initiative

Maryland’s goal is to plant and maintain 5 million native trees by 2031. There are various ways you can get involved – plant trees and register them — or volunteer! A number of tree-planting assistance programs are available at the municipal, county, and state levels.


THIS is the SUPERPOWER of YOUR KEYSTONE NATIVE PLANTS.

  • No exotic plant could ever achieve this.
  • Want butterflies? Feed the caterpillars with keystone plants!
  • Exotic plants will never support as many different species of caterpillars as the Keystone Natives can.
  • Find your keystone native plants here by zip code.

If your zip code doesn’t give you enough information try zip codes of the nearest larger town or city. LINK: https://www.nwf.org/NativePlantFinder/


Trees and Shrubs

  • Fertilize if necessary for the last time.
  • Avoid late summer pruning.
  • Water slowly and deeply if summer is very dry.
  • Prune evergreens to get in shape for fall/winter.
  • If your conifers start shedding their needles or your spring bulb foliage starts peeking out of the ground, don’t worry. This is normal for our autumn cycle.
  • Take cuttings from azaleas, boxwoods, and camellias to start new plants.
  • Thin out small trees and cut off any suckering branches growing from the bottom root ball.
  • Hold off on planting new trees and shrubs until the summer heat has passed.
  • Transplant trees and shrubs.
  • Plant evergreens for winter interest.
  • Prune foundation shrubs and trees to be no closer than 1 foot from the house.
  • Contact a certified arborist to have your trees’ health inspected.
  • Directly after blooming, prune flowering shrubs and vines.
  • Prune boxwoods.
  • Get a soil test.
  • Prune long shoots on shrubs to keep plant neat looking.
  • If you must mulch: Remove old mulch, then add 2″ – 3″ shredded pine or pine needles, keeping 3″ away from trunk.
  • Clean your gutters.
  • Do not fertilize newly planted or transplanted plants the first year.
  • Check often and water newly planted trees if they don’t pass the finger test (stick your finger deep into soil – dry? Water!)
  • Prune broken, dead, diseased, or damaged branches.
  • Keep an eye out for bark damage from rabbits or deer.
  • Check for vole problems and set out traps.
  • Spray broadleaf evergreens with anti-desiccant to prevent dehydration.
  • Use fallen leaves for mulch or compost.
  • Look out for any Poison Ivy vines, which will turn crimson in the fall and be easy to distinguish from other vines.
  • Weed – especially look for fast-growing vines such as honeysuckle, autumn clematis, bittersweet, wild grape, Virginia creeper, and poison ivy. Remove Ivy, Pachysandra, and other vine-like groundcover from under shrubs.
  • Mulch or compost healthy leaves.
  • Continue to remove fallen, diseased leaves.
  • Put diseased leaves, pesticide-laden grass clippings and weed seeds in your trash — not your compost pile.
  • Turn your compost pile weekly and don’t let it dry out. Work compost into your planting beds.
  • Apply scale and dormant oil treatment before dormancy breaks to decrease pest infestations.
  • Remove dead and dying trees.
  • Pests to watch for: aphids, azalea lacebug, bagworms, caterpillars, deer, gypsy moths, Japanese beetles, leafminers, sawfly, scale, spidermites, voles, and webworms.
  • Diseases to watch for: Apple scab, Cedar-apple, hawthorn or quince rust, Verticillium wilt, Oak leaf blister.
  • For more tips, see UMD’s HGIC Garden Tips for more details.

Herbs, Veggies, and Fruit

  • Keep an eye out for the first frost date. In Zone 6, it is expected between September 30 and October 30. In Zone 7, it is predicted to be between October 15 and November 15.
  • Continue planting cool-season vegetables; plant garlic now through the end of October.
  • This is a good time to have your vegetable garden and landscape soils tested.
  • Pick apples at your local pick-your-own farm or visit a local farmer’s market.
  • Watch your pumpkins/squash. Harvest them when their rinds are dull and hard.
  • Plant cover crops in vegetable gardens and annual beds (for example, rye, clover, hairy vetch, and winter peas).
  • Pot up rosemary and chives for over-wintering indoors.
  • Pick mature tomatoes and peppers to ripen on your window sills.
  • Remove rotting fruits from fruit trees and compost them.
  • Harvest leaves of herbs used in cooking (rosemary, basil, sage) in early morning, for best flavor.
  • Plant cool-season vegetables (beets, Brussels sprouts, carrots, cauliflower, Chinese cabbage, kale, kohlrabi, lettuce, radish, spinach, turnips).
  • Harvest your herbs often and keep them trimmed back to encourage leafy growth. Dry them indoors if you can’t use them right away.
  • Order garlic, onions, and shallots for fall planting.
  • Deadhead garlic chives before they go to seed. Makes a nice cut-flower.
  • Remove finished plants.
  • Cut off bottom, yellowed foliage on tomato plants.
  • Plant strawberries in a site with good drainage for harvest next spring.
  • Pinch back any straying strawberry runners.
  • Harvest regularly from your vegetable garden to prevent rot and waste.
  • Harvest onions when the tops die back.
  • Sow seeds of fall crops such as broccoli, turnips, cauliflower, etc. in late July.
  • New fruit plants – keep watered their first spring, summer, and fall.
  • Hand-pick cabbage worms from cabbage and brocolli.
  • Cover berry bushes and fruit trees with bird netting.
  • Gently clean up the garden, add 1 inch of compost.
  • Divide perennials and herbs.
  • Till and add organic matter to annual/vegetable beds.
  • Pick peas often to encourage the plants to produce more.
  • Store your fertilizer and seeds in a rodent-proof container.
  • Apply dormant oil spray to fruit trees.
  • Pests to watch for: Asparagus beetle, aphids, birds, cabbage worms, corn borer, corn earworm, cutworms, rabbits, deer, and tomato hornworm.
  • Diseases to watch for: Apple scab, Cedar-apple rust. fungal, bacterial, and viral diseases.
  • Here are some more UMD’s HGIC Garden Tips.

Lawns

  • Labor Day weekend – perfect time for seeding the lawn.
  • Apply fertilizer and lime to turfgrass based on soil tests.
  • Cool season lawns go dormant in hot, dry weather – Do Not Water.
  • Water established lawns deeply but infrequently!
  • Divide ornamental grasses.
  • Mow in the early evening and cut off no more than one-third of the grass height at a time. Leave clippings on the ground to improve water clarity.
  • Mow grass at 3 inches and leave the clippings on the lawn.
  • Mow zoysia grass at 2″.
  • Fertilize turf only if week. Apply 1 lb. N/1000 sq. ft.
  • Calibrate your spreader before fertilizing!
  • Control wild onions in warm season turf with broadleaf weed control.
  • To control crabgrass, apply pre-emergent herbicide to lawn (when forsythia blooms drop).
  • Do soil preparation – add lime, compost, etc. as needed.
  • Clean yard of leaves and other debris.
  • Mulch bare areas.
  • Apply grub control to your lawn.
  • Sharpen your lawnmower blade.
  • Check and tune-up power equipment (mowers and trimmers).
  • Turn your compost pile.
  • Diseases to watch for: brown patch, and red thread
  • Pests to watch for: Grubs
  • See UMD’s HGIC Garden Tips for more details.

Indoors/Houseplants

  • Bring in houseplants if you took them out for the summer.
  • Begin conditioning Christmas cactus and poinsettias to get them ready for the upcoming holiday season.
  • Bring Amarylis indoors before a hard freeze. Repot every other year at this time. Store in a cool, dark place and do not water until flower buds or leaves emerge.
  • Re-pot the houseplants you’ve moved outdoors for the summer.
  • Re-pot root-bound houseplants and start fertilizing them when new growth begins.
  • Mist indoor plants and set up pebble trays to increase humidity.
  • Deadhead flowering plants.
  • Scan houseplants for insect activity.
  • Maintain moisture in pots, but do not overwater!
  • Give your houseplants a quarter turn every few weeks.
  • Keep all houseplants out of drafts and away from heat vents.
  • Keep succulents and cacti on the dry side.
  • Check on your container plants daily and keep them well-watered.
  • Remove old leaves, damaged stems.
  • Dust your houseplants with a slightly damp cloth to prevent dust and film build-up.
  • Pests to watch for:  aphids, spider mites, mealybug, scale, stinkbugs, and whitefly.
  • See UMD’s HGIC Garden Tips for more information.

Read and follow label instructions on all pesticides and herbicides.

Start the year off by minimizing your #risk to #pesticides and always #ReadTheLabel! Learn more here: http://npic.orst.edu/health/readlabel.html

Questions about your label? Call us! 800-858-7378 M-F 8am-12pm PST


Indoor/Outdoor Insect and Wildlife Tips

  • Check for any stagnant water mosquito breeding grounds, especially your gutters. Dump out any water that sits stagnant for more than three days.
  • Add Mosquito Dunks to any standing water in your yard such as birdbaths, downspouts, plant saucers, and gutters.
  • Look for slug trails in the early morning and put out Sluggo bait as needed.
  • If you find slug damage, set out beer traps or Sluggo pellets.
  • Hand-pick or cut out any bagworm cocoons.
  • Hand-pick Japanese Beetles or shake them off over a bucket of dishwater. Early morning is a good time to catch them, while they are still drowsy.
  • This is the perfect time to apply grub control.
  • Keep cutworms off newly planted edible seedlings by surrounding the seedlings with a collar cut from a plastic bottle or cardboard tube.
  • Ticks are very active now.
  • Caulk and seal your outside walls to prevent insect entry into your home.
  • Check indoors for termites and ants.
  • Put up birdhouses.
  • Put suet out for birds.
  • Keep bird feeders clean and filled and provide a source of water.
  • Clean out your hummingbird feeders and add new sugar-water every three days.
  • Leave hummingbird feeders out until October 15.
  • Wash out birdbaths daily with diluted bleach solution.
  • Switch your deer deterrent spray. Re-apply after heavy rains.
  • Set out traps for mice, moles, and voles.
  • Watch for: eggs, larvae, carpenter ants, flies, stink bugs, termites, rabbits, raccoons, groundhogs, deer, mice, moles, snakes, squirrels, and voles.
  • For more information, see UMD’s HGIC Garden Tips.

Source: University of Maryland’s Home and Garden Information Center (HGIC) and the Washington Gardener.

See more tips from HGIC:

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HGIC GARDEN TIPS & TASKS

Natives at Noon: Lunch & Learn Webinar Series

Hello! I’m your host, Lisa Kuder, from UMD Extension. Join us on the first Wednesday of each month from noon to 1 as we delve into various topics related to native plants. Whether you’re a novice or a seasoned professional, this series provides an opportunity to expand your knowledge and engage with experts in the field. Master Gardeners and Master Naturalists, these sessions are an excellent way to earn Continuing Education Units.

Although the presentations are free of charge, registration is required to attend. Don’t miss this chance to enhance your understanding of native plants while enjoying your lunch. Register to attend one or more of the live only sessions:
Sept 2nd—Saving Ash for Future ForestOct 7th—Sacred Grounds: Moving from Behavior to Action by Growing Joy
Nov 4th—Creating Food Forests

Sept 2nd—Saving Ash for Future Forest

Wednesday, Sept 2nd

12pm – 1pm EST

Ash trees in North America face a severe threat from the emerald ash borer (EAB), now present in 38 states. Ash species are vital to many forest ecosystems, including black ash (Fraxinus nigra), which holds cultural significance for numerous Indigenous communities. Cornell Botanic Gardens is working to conserve and restore ash to New York Forests by propagating individuals showing natural resistance to EAB. Todd Bitner, Director of Natural Areas, will highlight ash conservation efforts and ways citizen scientists can help restore ash to our forests.


If you need a reasonable accommodation to participate in this event, please contact Lisa Kuder at lkuder@umd.edu two weeks prior to the webinar.


Montgomery Parks – Events

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Hiking Histories

Tuesday, September 8, 2026 | 11 am to 2 pm | All Ages | $12 |

Agricultural History Farm Park
18400 Muncaster Road
Redland Maryland 20855

Come explore the Farm Park’s unique trails while uncovering its rich past with Hiking Histories! This 2–3 hour guided hike takes participants along the Farm Park’s 5.5 miles of trails, blending outdoor exploration with engaging historical insights. As we hike through meadows, woodlands and historic landscapes, you’ll learn about the people, places and events that shaped the area – bringing local history to life in a vivid and memorable way. Perfect for curious hikers and history enthusiasts alike, Hiking Histories offers a refreshing mix of exercise, discovery and a deeper understanding of the land beneath your feet.

We’ll meet in front of the big red barn on the historic side of the Farm Park – just follow the gravel road up toward the barn and park in the grassy lot marked “Visitor Parking.” Be sure to dress for the weather, wear sturdy footwear, and bring water.


Meadowside Nature Center
5100 Meadowside Lane
Rockville, Maryland 20855

Vulture Awareness Day Celebration: Friday, September 4 | 4 to 5 pm | All Ages | $7 | Meadowside Nature Center

Walk Up Bird Walk: Saturday, September 5 | 10 to 10:30 am | Ages 8+ | FREE | Meadowside Nature Center

Meadowside Celebration! Wednesday, September 9 | 11:00 am – 1:00 pm | All Ages | FREE | Meadowside Nature Center

On Sept. 9, come celebrate all Meadowside has to offer and see what’s new with our exhibits! We’ll have games, hikes, raptor chats, and a campfire. We’re looking forward to connecting with our community in nature and hope to see you there. The celebration starts at 11 am. 

Register: https://mocoparks.org/4y5521N

Crabs, Creeks, and Cold Brews – A Maryland Day Celebration

Saturday, September 5 | 6 to 8 pm | All Ages | $80 | Meadowside Nature Center

Grab a cold drink and join a naturalist for a twilight stroll down to the creek. Then head back to the tables to unwind to the sounds of live music while diving into fresh, steaming blue crabs, sides and drinks. Registration includes your full meal, two drinks, and access to first-come, first-served childcare right on-site.


Location:
Brookside Gardens
1800 Glenallan Avenue
Wheaton, MD 20902

Brookside Gardens Behind-the-Scenes Greenhouse Tour

Wednesday, September 9, 2026 | 1:00PM – 2:15PM | Brookside Gardens

Brookside Gardens: Behind-the-Scenes Greenhouse Tour

Thursday, September 10, 2026 | 10:00AM – 11:15AM | Brookside Gardens

Fragrance Garden Tour

Friday, September 11, 2026 | 10:30AM – 11:45AM | Brookside Gardens

Brookside Gardens Plant Sale

Saturday, September 12, 2026 | 10:00AM – 1:00PM | Brookside Gardens

Outdoor Guided Walk for Families: Butterflies

Sunday, September 13, 2026 | 10:00AM – 11:00AM | Brookside Gardens

Beyond the Ordinary: Rare & Unusual Plants at Brookside

Tuesday, September 22, 2026 | 10:30AM – 12:00PM | Brookside Gardens

Guided Bird Walk at Brookside Garden

Wednesday, September 23, 2026 | 7:30AM – 9:00AM | Brookside Gardens

Guided Bird Walk at Brookside Gardens

Saturday, September 26, 2026 | 8:00AM – 9:30AM | Brookside Gardens

Outdoor Guided Walk for Families: Birds

Saturday, September 26, 2026 | 10:00AM – 11:00AM | Brookside Gardens

Seasonal Showstopper: Build a Fall-Blooming Container Garden

Tuesday, September 29, 2026 | 10:00AM – 11:30AM | Brookside Gardens


Pop-Up Exploration Cart – Insects


Wednesday, September 2, 2026 – Friday, September 4, 2026 from 11:00 a.m. to 1:00 p.m. / FREE / All ages / No registration required
Location: Children’s Garden

Celebrate National Pollinator Week with us and learn more about pollinators, their importance, and the plants they love. Enrich your garden visit with a fun pollinator scavenger hunt. Just stop by the Exploration Cart next to the Children’s Garden any time between 11:00 a.m. to 1:00 p.m.


The Butterfly Experience

Now Until September 7 | 9 am to 3 pm | All Ages | $15.99 for Ages 13+, $10.99 for Ages 3 to 12 (includes $1.99 service charge) |

Location:
Brookside Gardens
1800 Glenallan Avenue
Wheaton, MD 20902

Experience hundreds of live butterflies from around the world up-close, while discovering how these beautiful pollinators play a part in the ecosystems all around us!


Less Lawn, More Life with Native Plants: Part 2 – Practical Tips

Saturday, September 19
2:00pm – 3:00pm

Gaithersburg Library
18330 Montgomery Village Ave.
Gaithersburg, MD 20879

Whether you’ve been a native plant enthusiast for years or are just starting, come learn ways to improve the habitat value of your garden! A continuation of last month’s talk but new commers welcome!

Join Merikay Smith from the Master Gardeners of Montgomery County Cooperative Extension Service as she shares tips and techniques for replacing lawn with native plants along with what she’s learned about that process over the past 15+ years. Topics covered include defining native plants and their benefits, a simple layering process to kill lawn and create beds, design options, example native plants for various conditions, native trees, no-mow areas, avoiding invasive plants, resources and more.

About Merikay Smith

Merikay Smith became a Maryland Master Gardener in 2007 and led the MCMG Speakers’ Bureau. Merikay is a Board member of Latter-day Saint Earth Stewardship, launching their first local chapter here in 2016. Check out the native plant garden this local chapter created at historic Pleasant View. She has helped mentor an additional 11 new chapters of LDSES located across the globe. Merikay has also served many years on the Boards of both the Muddy Branch Alliance and Seneca Creek Stewardship Partners, recently as president of SCWP.

Questions about this program? Contact the Gaithersburg Library at 240-773-9490.


Seneca Creek State Park August Programs

Seneca Creek State Park
11950 Clopper Road
Gaithersburg, MD 20878

Here’s a link to Seneca Creek State Park’s September Programs. Featured events for September include Pontoon Tours, Monday Night Hikes, Try a New Trail Hike, Intro to Birding, Mindfulness Hike, Miles for Maryland Challenge Hike, Take Me Fishing, and more! These events are provided by The Friends of Seneca Creek State Park.

About Friends Of Seneca Creek State Park (FOSCSP)

The only State Park entirely in Montgomery County, featuring Hiking, Disc Golf, Boating, Fishing, Peony Display Garden, Recycled Tire Playground, and Winter Lights display from Nov. 27th through December 31st. Entrance is free from November through March.

The Friends of Seneca Creek State Park collect dues and donations that are used to support the visitor experience in the park. We are a 501(c)(3) designated charity, so all donations, including dues, are tax deductible as allowed by law.


Montgomery College

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Lifelong Learning Home and Garden Classes – Fall 2026

See Schedule of Fall Classes below:

Course #CRNCourse NameStart DateEnd DateDaysTimesLocation
LLP27324232Garden Design9/15/2610/6/26Tues6:30 PM – 9:00 PMRockville
LLI02224673Orchids: How to Grow and Bloom9/24/269/24/26Thurs6:30 PM – 9:30 PMOnline
LLP37924385Woody Ornamentals for the Mid-Atlantic Region10/1/2610/8/26Thurs6:30 PM – 8:30 PMOnline
LLP11824234Dazzling Floral Arrangements and Designs for Home and Office12/5/2612/12/26Sat10:00 AM – 12:30 PMRockville

Fall 2026 Environmental Horticulture

The courses described below are being offered by the Environmental Horticulture program at Montgomery College for the Fall term. In-county tuition rates are available for business/industry employees. Tuition waivers are available for senior citizens. For more information on the program of courses, contact steve.dubik@montgomerycollege.edu.

HORT 170 Medicinal Plants

In the Fall 2026 term, Montgomery College Germantown is offering the course Hort 170 in Medicinal Plants, through lectures, labs, and field experiences, for credit or audit. For more information, please contact serda.ozbenian@montgomerycollege.edu.


Maryland Native Plant Society Conference

Register Today! September 12 and 13, 2026

Diverse Landscapes on Maryland’s Piedmont and Western Shore

Day 1 at University of Maryland, College Park will feature guest speakers, local tours, native plant sale, and more.

Day 2 will have field trips throughout Maryland.

More information coming soon at mdflora.org/events


Let’s Talk Gardens

Thursdays 12 to 1 p.m.

Smithsonian Gardens

Lets Talk Gardens October Speakers Panel
 
“Grow” your gardening know-how! Our free online gardening program, Let’s Talk Gardens, covers a wide range of topics presented by our own professional staff, as well as guest speakers. 

And we encourage you to watch videos in our Let’s Talk Gardens Video Library.

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