Tall, Semi-Shade, Long Blooming Perennials


We’d like to add some interest to our perennials gardens. What do you recommend that is:
tall semi-shade long blooming perennials


Dear gardener,

Thank you for contacting the Toronto Master Gardeners.

There is an array of choices we can recommend. Much depends on light conditions (you mentioned Part-shade), soil type and natural moisture in your site. I am also assuming that you are located in Toronto.

As such, you can take a look at the following list of perennials as a starting point. I have selected perennials that are long blooming and > 100cm in height. However, when looking at these at the garden center, check the height for each variety as some will be a bit shorter than others:

Rudbeckia laciniata (Cut leaf Coneflower): 120-210cm

Eupatorium purpureum (Joe-Pye Weed): 200cm

Silphium perfoliatum (Cup plant): 100-250cm – It prefers full sun but can survive part-shade

Ligularia dentata (Ligularia): 100-150cm

Digitalis purpurea (Foxglove): 90-120cm

Matteuccia struthiopteris (Ostrich Fern): 100cm – Although non blooming, it adds interest to the back border

Cimicifuga (also classified as Actea) simplex (Bugbane): 150cm

Aruncus spp (Goatsbeard): 90-100cm

Thalictrum spp (Meadow Rue): 90-150cm

Aconitum spp (Monkshood): 70-110cm

Filipendula purpurea (Meadowsweet): 100cm

Veronicastrum virginicum (Culvert’s root): 90-120cm

Symphyotrichum novae-angliae (New England Aster): 100-150cm

Rodgersia aesculifolia (Rodgersia): 100cm

Echinacea pallida (Pale Purple Coneflower): 100-150cm – It prefers full sun but can survive part-shade

Monarda fistulosa (Bergamot): 100-150cm

Asclepias incarnata (Red Milkweed): 100-120cm – These need very moist conditions as they live in wet habitats. The common Milkweed is shorter and requires full sun.

The above list includes many native plants. This is not a coincidence; our native plants thrive in our climate and have a tendency to grow taller than non-native ones. They are also more adaptable to many soils.

Best of luck and happy gardening!