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You are here: Home / Making a Garden / Penstemons with red foliage

Penstemons with red foliage

By Judith Adam Filed Under: Making a Garden, May in the garden

Penstemon Dark Tower (Photo courtesy of Terra Nova® Nurseries, Inc.)

For the past two growing seasons, I’ve tried to develop an appreciation for plants with black foliage, but it’s not working. Newly bred black plants like ‘Black Scallop’ ajuga, black-brown ‘Australia’ canna and ‘Black Magic’ elephant ears (Colocasia esculenta ‘Black Magic’) are just unappealing to my clearly unsophisticated garden tastes. But I do see the need for diversity in foliage colour, and that’s how I’ve come to appreciate ‘Husker Red’ and ‘Dark Towers’ penstemons. I think I’m going to like red foliage a lot better than black.

Both penstemons have emerging burgundy foliage, which contrast well with the green and variegated foliage of neighbouring plants. They’re most effective when grown in full sun and planted in a triangle of three to generate best colour impact. ‘Husker Red’ (Penstemon digitalis ‘Husker Red’, Zone 4) is an old favourite, with 24-inch (60-cm) spikes of white tubular flowers atop rigid stems in late spring through early summer. Its burgundy spring foliage softens to bronzy red in midsummer. While recently looking for a few pots of this plant, I came across its cousin, ‘Dark Towers’ (Penstemon ‘Dark Towers’, Zone 4), with darker foliage and pale pink flowers. ‘Dark Towers’ was developed at the University of Nebraska, and is three feet (90 cm) tall with with dark maroon or wine-red foliage that retains its colour all season.

Penstemons are clump-forming perennials, and will perform well in heat, humidity and a short drought. They like average garden soil with good drainage and all the sun they can get. I’ve set them in a bright location that tends to have dry soil, but like every garden plant, they’ll do better with regular watering. I intend to be very good to these red-leaf penstemons, because I’m starting my own trend away from black and on to red. Maybe it will catch on.

Published: May 28, 2013 | Updated: February 6, 2019

About Judith Adam

Judith Adam is a horticulturist, landscape designer and author of several best-selling gardening books, including Landscape Planning. She lives in Toronto.

Reader Interactions

Comments

  1. Anne says

    May 24, 2020 at 10:06 pm

    I really like the Husker Red as well. It comes true from seed in my garden, and every year I leave one flower stalk to mature, and I’ve raised dozens of seedlings. A beautiful plant.

    Reply
  2. Gail says

    July 2, 2015 at 7:28 am

    I was so excited to see this flower featured. On the street where my son lives a family has a row of these and I admired them so much I was even going to stop and ask the name. Now I don’t have to. They look lovely and I like their beautiful burgundy and pink combo. Now I just have to find some to buy and a spot somewhere in the garden to squeeze them in . Thanks Gail

    Reply

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