Oakvillegreen Conservation Association

Oakvillegreen Conservation Association Protecting and restoring green spaces in Oakville and connecting our community to nature.

Oakvillegreen is a non-partisan, grassroots environmental charity protecting and restoring nature in Oakville through community education and local action since 2000. Working closely with thousands of local volunteers, we protect and restore the ecological functions of local lands and waters, creating a more resilient and healthy community. We believe that through local, collaborative action, we c

an make a difference. Our approach is to empower community action by providing the tools, knowledge and opportunity for individuals to make change happen locally. Through direct engagement and the promotion of nature-based climate solutions, we work to create a greener Oakville.

Join us next Thursday, September 10 from 6:00 to 7:00 p.m. for a family-friendly walk celebrating our giant Eastern Whit...
09/03/2026

Join us next Thursday, September 10 from 6:00 to 7:00 p.m. for a family-friendly walk celebrating our giant Eastern White Pines, which are truly a sight to see!

Explore the ecological importance of Eastern White Pines, discover the many benefits they provide, and visit some of South Oakville's largest and most impressive trees.

Register TODAY at
oakvillegreen.org/events-calendar

🌲🪏 Calling all nature lovers and tree enthusiasts!Join us this fall to plant native trees and shrubs and help create hea...
09/02/2026

🌲🪏 Calling all nature lovers and tree enthusiasts!

Join us this fall to plant native trees and shrubs and help create healthier, more biodiverse green spaces in our community. We need your help to make this season’s planting events a success!

🥾 Spend time outdoors
🍃 Connect with like minded people
🐦 Make a lasting impact on our local green spaces

Bring your family and friends, or come on your own - everyone is welcome!

Register now:
oakvillegreen.org/events-calendar

Tree Canada / Arbres Canada

This striking insect is a white-spotted sable moth (Anania funebris), which features a wingspan of just 20–23 mm (0.79–0...
09/01/2026

This striking insect is a white-spotted sable moth (Anania funebris), which features a wingspan of just 20–23 mm (0.79–0.92 in).

These moths can be observed in flight from late April to August, with peak activity occurring during June and July. Unlike most moth species, white-spotted sables are diurnal, meaning they actively fly and feed during the day.

Because their larvae rely on goldenrod (Solidago) to survive and feed, adding goldenrod to your garden is the absolute best way to welcome them to your yard! Find the right goldenrod variety for your garden space here: www.oakvillegreen.org/get-to-know-goldenrod

Follow along each week for more stories and sightings of ! Sign up for our newsletter to stay updated: www.oakvillegreen.org/newsletter-sign-up

Photo credits: Karen Brock

Loved by bees and butterflies alike, Black-eyed Susan is a valued native plant with a fast germination rate, ability to ...
08/31/2026

Loved by bees and butterflies alike, Black-eyed Susan is a valued native plant with a fast germination rate, ability to quickly fill open ground while slower-growing species take root, and rapid ground cover, with strong first-year performance! As it is a short-lived perennial that readily reseeds, it does not require replanting and can naturally thin as it matures.

If you are a first-time gardener or someone looking for a versatile plant to grow in dry to moderately moist, sunny spots in your garden, black-eyed susan is a perfect plant to include among other natives. If you already have Black-eyed Susan flourishing in your garden, be sure to leave the seed heads intact through fall and winter, as they provide a valuable food source for birds.

that bees don’t see Black-Eyed Susans the way we do? While the petals look solid yellow to humans, they actually have a UV pattern that is visible to many pollinators. The outer edges reflect more UV and appear lighter, while the areas toward the centre appear darker, creating a colour contrast that acts as a visual guide for visiting bees, helping direct them toward nectar rewards at the centre of the flower head.

🐛 Larval host plant to:
Silvery checkerspot butterfly
Wavy-lined and Southern emerald moth
Common eupithecia moth

🐝Specialist bee served:
Coneflower mining bee

📷 Anelia Pl

  Plant Profile: Black-eyed SusanLoved by bees and butterflies alike, Black-eyed Susan is a valued native plant with a f...
08/28/2026

Plant Profile:
Black-eyed Susan

Loved by bees and butterflies alike, Black-eyed Susan is a valued native plant with a fast germination rate, ability to quickly fill open ground while slower-growing species take root, and rapid ground cover, with strong first-year performance! As it is a short-lived perennial that readily reseeds, it does not require replanting and can naturally thin as it matures.

If you are a first-time gardener or someone looking for a versatile plant to grow in dry to moderately moist, sunny spots in your garden, black-eyed susan is a perfect plant to include among other natives. If you already have Black-eyed Susan flourishing in your garden, be sure to leave the seed heads intact through fall and winter, as they provide a valuable food source for birds.

that bees don’t see Black-Eyed Susans the way we do? While the petals look solid yellow to humans, they actually have a UV pattern that is visible to many pollinators. The outer edges reflect more UV and appear lighter, while the areas toward the centre appear darker, creating a colour contrast that acts as a visual guide for visiting bees, helping direct them toward nectar rewards at the centre of the flower head.

🐛 Larval host plant to:
Silvery checkerspot butterfly
Wavy-lined and Southern emerald moth
Common eupithecia moth

🐝Specialist bee served:
Coneflower mining bee

📷Anelia Pl

The Downy Woodpecker is the smallest and one of the most familiar woodpeckers in North America. It is commonly found in ...
08/26/2026

The Downy Woodpecker is the smallest and one of the most familiar woodpeckers in North America. It is commonly found in woodlots, neighbourhoods, and city parks, where it can be seen climbing tree trunks and branches in search of insects.

During winter, Downy Woodpeckers often join mixed-species flocks with chickadees and nuthatches. Travelling together helps them spend less time watching for predators and increases their chances of finding food by benefiting from the discoveries of other birds.

These agile birds move effortlessly along tree trunks and branches, probing bark for insects and even dropping into tall plants to feed on insect galls. Their undulating, rising-and-falling flight is characteristic of many woodpeckers. In spring and summer, listen for their sharp whinnying calls and the rhythmic drumming they use to communicate and establish territories.

Downy Woodpeckers are welcome visitors to native gardens, where mature trees, standing deadwood (when safe), and shrubs provide food, nesting sites, and shelter. They are especially attracted to landscapes that support a diversity of native insects.

To encourage Downy Woodpeckers, plant a variety of native trees, shrubs, and flowering plants that provide habitat for insects year-round. Leaving seed heads, dead branches (where safe), and fallen logs in naturalized areas can also create valuable foraging opportunities.

📸 Follow along each week as we share stories and sightings of ! Sign up for our newsletter: www.oakvillegreen.org/newsletter-sign-up.

Photo credits: Anelia Tichkova
Anelia Pl

Source: Cornell Lab of Ornithology
Cornell Lab of Ornithology

🐝 Where do bees sleep? And how do they choose their flowers? 🌼When the sun goes down, bees need a safe place to rest. So...
08/25/2026

🐝 Where do bees sleep? And how do they choose their flowers? 🌼

When the sun goes down, bees need a safe place to rest. Some species tuck themselves into flowers or vegetation, sheltered from wind, rain and predators. Others sleep on leaves and stems, while many solitary bees return to their nests for the night.

Bees don’t choose flowers simply because they’re beautiful. Different bee species are attracted to different flower shapes, colours, scents, and sources of nectar and pollen.

That’s why choosing a variety of Ontario native plants matters.🌱

Our native plants have evolved alongside local pollinators, providing food and habitat that support bees throughout the seasons. Joe-Pye w**d, gray-headed coneflower, goldenrods, asters, wild bergamot and black-eyed Susan are just a few examples of native plants that can provide valuable resources for bees and other pollinators.

When we leave our gardens a little wilder—with stems, leaves and flowers standing throughout the seasons, we may be providing more than food. We may also be providing shelter, nesting places and a safe spot for a sleepy bee. 💤🐝

Do you have an area in your garden with poor soil and dry conditions, where nothing seems to thrive and everything you p...
08/21/2026

Do you have an area in your garden with poor soil and dry conditions, where nothing seems to thrive and everything you plant struggles? Well, to fill that space, plant hoary vervain!

This tough perennial, with high drought tolerance and a long flowering period, thrives in sunny locations. It often naturalizes by self-seeding to form colonies. The seeds feed birds and small mammals, while its blooms attract numerous species of butterflies, moths, and bees.

Complementary plants to grow alongside it include wild bergamot, spotted bee balm, little bluestem, black-eyed Susans, fragrant hyssop, butterfly milkw**d, and stiff goldenrod.

🐝 Specialist bee served:
Vervain miner bee (Calliopsis nebraskensis)

See you next FriDAY for another native plant profile!

Photo credits: Anelia Tichkova
Anelia Pl

 ? Meadow voles spend much of their lives hidden beneath the grass, creating intricate networks of surface runways and u...
08/19/2026

? Meadow voles spend much of their lives hidden beneath the grass, creating intricate networks of surface runways and underground tunnels that can honeycomb an entire meadow!

Found throughout much of North America in grassy meadows, mountaintops, and marshes, these tiny mammals are commonly called field mice. However, they actually have shorter tails and ears than mice and are brown in colour with silver-grey bellies.

Meadow voles build cozy, globe-shaped nests from dried grasses, tucked beneath logs, within thick vegetation, or underground for protection. They eat their weight’s worth of grasses, sedges, clover, wildflowers, seeds, roots, and tubers, while occasionally snacking on insects and other small invertebrates.

They communicate primarily through scent. Adults squeal, growl, and chatter their teeth when threatened, while newborns use ultrasonic calls to communicate with their mothers.

Despite their small size, meadow voles play a huge role in healthy ecosystems. They are an essential food source for many predators, including foxes, coyotes, weasels, snakes, owls, hawks, and other birds of prey. By supporting these predators, meadow voles help keep food webs balanced and thriving.

Want to help protect our tiny meadow engineers?

🌾 Leave natural grassy areas: Meadows and tall grasses provide shelter, nesting sites, and safe travel corridors.
🪏 Plant native plants: Native grasses and wildflowers provide food and habitat while supporting entire ecosystems.
🚜 Mow less often: Allow patches of grass to grow longer, especially along naturalized areas, to protect nests and runways.
🥾 Stay on designated trails: This helps prevent damage to fragile nests and tunnel systems hidden beneath the vegetation.

📸 Follow along each week as we share stories and sightings of !

Photo credits:
Anelia Tichkova

Today was our last pollinator garden stewardship event of the year. Many thanks to our volunteer team for showing up thi...
08/18/2026

Today was our last pollinator garden stewardship event of the year.

Many thanks to our volunteer team for showing up this summer with your time, energy, and commitment to caring for our pollinator gardens across Oakville. Together, we removed 111 bags of invasive w**ds from our garden sites. Way to go! 🪏🥾💪

We hope to see everyone again at our future events!

Special thanks to Oakvillegreen staff Karen and Julia for baking those delicious cupcakes to celebrate the end of our summer stewardship events! 🐞🧁💕

To join us at an upcoming event, register at:
www.oakvillegreen.org/events-calendar

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Oakville, ON

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