Best Perennials for the Treasure Valley

In Idaho, it’s hot and dry in the summers and for some people, water is very expensive.   If you want to know what grows well in your area, walk around your neighborhood and check out the landscape.  Look to see what is in bloom, what is flourishing and even check out what plants look heat stressed or a bit lack luster.  There are  some plants that really do well here and will multiply and produce color and beauty for years.  There are some perennials when planted in our high desert climate that suffer in the heat and low humidity.

Bee Balm  (Monarda)
Bee Balm (Monarda)

I love to garden, but I do not want to spend my time babysitting a lot of fussy plants that will not thrive in our climate.  If you are of the same persuasion, then here is the list for you!

A special thanks to Nancy from Cottage Gardeners who supplied this list of her personal favorites.  These plants are what are considered the essence of a cottage garden, "always gay and never garish".  A definition of a cottage garden:: bountiful, yet regulated informality, a tidy mess, "delightful disorder", where plants are grown for their medicinal value, for flavoring, or for their scents.

Japanese Anemone

Siberia Bugloss (Brunnera)

Candytuft  (Iberis sempervirens)

Catmint  (Nepeta)

Cranesbill  (perennial Geranium)


Bleeding Heart  (Dicentra)

Spurge  (Euphorbia)

Goldenrod  (Solidago)

Lenten Rose  (Hellebores)


Lady's Mantle  (Alchemilla)

Spotted dead nettle  (Lamium)

Maltese cross  (Lynchnis Calcedonia)

Shasta Daisy
Shasta Daisy

Michaelmas daisy (Aster)

Bee Balm (Monarda)






Perennial Salvia

Pin Cushion Flower (Scabiosa)


Here are a few additions I have chosen that do very well in our soil and climate

Bearded Iris

Jupiter's Beard (Centranthus ruber)

Soapwort  (saponaria)

Blanket Flower (Gaillardia)




And these are just a few.  What are your favorite perennials for the Treasure Valley?





Published by Vicki

I love gardening and when it comes to vegetables, organic gardening is important to me. I am an Advanced Master Gardener with the University of Idaho, and my favorite garden activity is pruning. When I'm not cutting down plants, you can find me shooting photos on my Canon DSLR or out smashing overheads on the tennis courts.

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