Native Plants

Avens

Geum ×macneillii

USDA symbol: GEMA12

perennial forb

Canada: native

If you’re a collector of rare native plants or someone who loves discovering botanical treasures, MacNeill’s avens (Geum ×macneillii) might just pique your interest. This perennial hybrid represents one of Canada’s more elusive native wildflowers, though don’t expect to find it at your local garden center anytime soon! MacNeill’s avens ...

MacNeill’s Avens: A Rare Canadian Native Worth Knowing

If you’re a collector of rare native plants or someone who loves discovering botanical treasures, MacNeill’s avens (Geum ×macneillii) might just pique your interest. This perennial hybrid represents one of Canada’s more elusive native wildflowers, though don’t expect to find it at your local garden center anytime soon!

What Makes This Avens Special?

MacNeill’s avens belongs to the rose family and shares the characteristic charm of its more common cousins. As a hybrid species (indicated by the × symbol in its scientific name), this plant represents a natural cross between two parent Geum species. Like other avens, it’s a herbaceous perennial forb – essentially a non-woody flowering plant that comes back year after year.

Where Does It Call Home?

This rare avens is native to Canada, with its natural range limited to Quebec. That’s quite a small geographic footprint for a native plant! Its restricted distribution makes it something of a botanical unicorn – present in nature but not widely distributed.

  • Species observed
  • No observations

Should You Grow MacNeill’s Avens?

Here’s where things get a bit tricky. While supporting native plants is always admirable, MacNeill’s avens presents some unique challenges:

  • Extremely limited availability in the nursery trade
  • Specialized growing requirements that aren’t well-documented
  • Potential rarity concerns in its native habitat
  • Limited information about successful cultivation methods

If you do encounter this plant, it’s crucial to ensure any material is responsibly sourced and not collected from wild populations.

Growing Conditions and Care

Since specific cultivation information for MacNeill’s avens is scarce, we can draw from general Geum growing requirements:

  • Prefers well-draining soil with consistent moisture
  • Likely thrives in partial shade to full sun
  • Probably hardy in northern climates given its Quebec origin
  • May benefit from cool, moist growing conditions

As with most avens species, good drainage is essential to prevent root rot, especially during winter months.

Alternative Avens for Your Garden

If you’re drawn to the avens family but can’t locate MacNeill’s avens, consider these more readily available native alternatives:

  • Large-leaved avens (Geum macrophyllum) – widely native across North America
  • Water avens (Geum rivale) – beautiful nodding flowers, good for moist areas
  • White avens (Geum canadense) – delicate white flowers, shade tolerant

The Bottom Line

MacNeill’s avens represents the fascinating world of rare native hybrids that exist in nature’s quiet corners. While it may not be practical for most gardens due to availability issues, it serves as a reminder of the incredible diversity hiding in our native flora. If you’re ever botanizing in Quebec, keep your eyes peeled – you might just spot this elusive beauty in its natural habitat!

For most gardeners interested in supporting native pollinators and wildlife, focusing on more widely available native avens species will provide similar ecological benefits with much greater success rates. Sometimes the best way to appreciate rare plants is simply knowing they exist and supporting habitat conservation efforts that protect them in the wild.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Rosidae
Order: Rosales
Family: Rosaceae Juss. - Rose family
Genus: Geum L. - avens

Species: Geum ×macneillii J.-P. Bernard & R. Gauthier [laciniatum × urbanum] - avens

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA