The Plant Store is now closed for 2023 and will re-open for sales in May of 2024

  • Please see the Using the Plant Library  page  for some tips on how to make the most of the information here to select species for creating a healthy native plant community suited to the conditions of your site.

Symphyotrichum cordifolium, Heart Leaved Aster

Symphyotrichum cordifolium 

Heart Leaved Aster

  • Part shade preferred, will grow in full sun. Will tolerate fairly deep shade but with limited blooming.
  • Average soil preferred, also grows well in dry, sandy soils in part shade.
  • 24" to 40" tall, spreads to form a patch but not at an overwhelming rate (similar to Monarda, which makes a good garden companion for these)
  • Garden, meadow and woodland settings.

Hairy Beardtongue steals the show in my urban Ottawa garden in June; Heart-leaved Aster steals it in September. It amazes me that this dappled shade loving aster isn’t more widely known and planted. Their foliage is lush green through the summer, even in dry part-shade, the flower buds are delicate and airy and appear in late August and the blooms are showy and covered in happy bees through September, even as the New England Asters in my sunnier front yard have started to shift from providing nectar and pollen and onto growing seed.
These spread slowly to form a patch and are a nice follow-up to the red Monarda that grows nearby. I introduced some Zigzag Goldenrod to the space next to this patch late last fall and I’m looking forward to their combined blooming next September.
These will grow in full sun, but they really thrive in dappled sun or afternoon shade and will grow well in garden conditions, edges of woodlands, partially shaded meadows and fast draining, low nutrient soils. Height is generally between 18" and 36”, growing taller in shadier locations or when alongside taller plants.


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Species that were not sown / aren't being sown for 2023 are marked with an * 
Species that are native to this continent, but not historically native to Ontario are marked with a ~ 
While it rarely comes up, I do reserve the right to limit plant quantities, mostly to help ensure that as many native plant gardens as possible become a reality
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