When does Canada mayflower bloom?

Canada mayflower typically flowers in May and June, producing small clusters of white blossoms above its paired heart-shaped leaves.

How much light does Canada mayflower need?

This forb does best in part shade but tolerates conditions from part sun to full shade, making it well suited to the dappled light of a forest floor.

What insects visit Canada mayflower flowers?

Bees and beetles are the main visitors to the small white flowers, which they use for nectar and pollen while helping pollinate the plant.

How does Canada mayflower spread in a garden or woodland setting?

It spreads through underground rhizomes, gradually forming a low, dense carpet of foliage that works well as woodland ground cover.

What kind of soil moisture does Canada mayflower prefer?

It grows in soils with medium to somewhat low moisture, favoring the humus rich, well drained conditions common in forest understories.

Is Canadian May-lily HOA-friendly?

Canadian May-lily takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Canadian May-lily

Name: Pollinator Patch
Author: Pollinator Patch

Maianthemum canadense

Last reviewed: August 2026

Canada mayflower is a low woodland forb that spreads by rhizomes to form dense ground cover under forest canopy. It produces small white flower clusters in May and June and grows well in shaded to partly sunny understory sites across the Northeast, Upper Midwest, and Appalachian region.

Toxicity unknown

Canadian May-lily (Maianthemum canadense) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

medium

Size

4"–8" H × 6"–12" W

Bloom

May, Jun

Native to

CT, DE, GA, IA and 26 more states

Pollinators

bees, beetles

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Canadian may-lily is a low-growing woodland groundcover with heart-shaped leaves and delicate white flower clusters in late spring. This shade-loving perennial forms small colonies and produces bright red berries in late summer, adding seasonal interest to garden beds.

Growing Canadian May-lily

Grow Canadian May-lily in part shade and medium water. Mature plants reach 4 to 8 inches tall and spread 6 to 12 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Canadian May-lily takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Very woodland/wild appearance doesn't fit typical HOA aesthetics
Can look sparse or weedy outside natural settings
Dies back completely in winter leaving bare ground

Wildlife value

The small white flowers attract native bees and beetles during the May-June bloom period. The red berries provide food for birds and small mammals in late summer.

Common questions

When does Canada mayflower bloom?: Canada mayflower typically flowers in May and June, producing small clusters of white blossoms above its paired heart-shaped leaves.
How much light does Canada mayflower need?: This forb does best in part shade but tolerates conditions from part sun to full shade, making it well suited to the dappled light of a forest floor.
What insects visit Canada mayflower flowers?: Bees and beetles are the main visitors to the small white flowers, which they use for nectar and pollen while helping pollinate the plant.
How does Canada mayflower spread in a garden or woodland setting?: It spreads through underground rhizomes, gradually forming a low, dense carpet of foliage that works well as woodland ground cover.
What kind of soil moisture does Canada mayflower prefer?: It grows in soils with medium to somewhat low moisture, favoring the humus rich, well drained conditions common in forest understories.
Is Canadian May-lily HOA-friendly?: Canadian May-lily takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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