The Q&A Archives: tall and showy perennials

Question: Hi,

I'd like to know if I can grow any tall and showy perennials (and have them survive) in the Boston area. Any suggestions? I already tried delphiniums, but they didn't like the heat.


Answer: Delphiniums are not easy to grow, but luckily there are many other choices. You might like purple coneflower (Echinacea purpurea), tall border phlox (Phlox paniculata "David" is a nice one with excellent mildew resistance), Boltonia "Snowbank", Baptisia, Joe Pye Weed (Eupatorium purpureum), taller varieties of daylily (Hemerocallis, some have flower stems to four feet and more), Mondarda didyma, Echinops ritro, Macleaya cordata (this can be invasive as it spreads in the garden, but is very impressive), Perovskia, and Rheum palmatum tanguticum (ornamental rhubarb) are just a few large sized perennials that can look stunning in the garden. Your local professional nursery staff may have additional suggestions based on a more detailed understanding of the growing conditions in your flower garden and your overall design goals. Enjoy!

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