Perennials

Hardy Geraniums, Very Drought-Resistant

There are several types of perennial geraniums hardy in Canada, which are obviously nothing like the pelargoniums used as annuals in our latitudes, as they don’t survive our winter temperatures.

Larry had classified the geranium as a perennial that was almost always in bloom! All varieties make excellent ground cover, forming cushions of cut foliage and small flowers ranging from pink to mauve and white. The varieties Larry recommended were Geranium ‘Ann Folkard’, G. cinereum, G. dalmaticum, G. endresii, G. x oxonianum and G. sanguineum

A close-up view of blood cranesbill.

The Blood Cranesbill, a Ground Cover to Discover

Personally, I’m partial to the blood cranesbill (Geranium sanguineum): a small perennial that’s hardy in zone 3 and highly resistant to drought. This variety forms cushions 15 to 20 cm (16-24 inches) high and 40 to 60 cm (16-24 inches) in diameter, and produces an abundance of small pink-magenta flowers from June to September. The bright green foliage turns reddish in autumn, and the plant multiplies spontaneously from seed.

This perennial is ideal for rock gardens or sunny to semi-shaded flowerbeds. It likes well-drained soil and is therefore an excellent substitute for a sunny lawn, especially on a steep slope where the use of a lawnmower is dangerous.

The slope
When planting blood geraniums in 2022.
In 2024.

Drought-Resistant Ground Cover

Other drought-resistant ground-cover perennials could benefit from the same kind of sunny situation.

Aurinia saxatile (Golden alyssum): zone 3

Source: Jardin-malin

Antennaria howellii subsp. canadensis syn. A. canadensis (Canadian Pussytoes): zone 2

Photo: Vladimir Milovanovic

Cerastium tomentosum (Snow-in-summer): zone 2

Photo: Heron2

Sedum rupestre ‘Angelina, Sedum spathulifolium, Sedum oreganum (Stonecrop) : zone 3

Photo: David J. Stang

Thymus sp (thymes): zone 3

Photo: Edith Smeesters

Edith Smeesters is a biologist and a pioneer in ecological horticulture in Quebec. She has given countless conferences and workshops and written several books on the subject for over 20 years. She founded and has been president of several environmental organizations, such as Nature-Action Québec and the Coalition for Alternatives to Pesticides. She was a key figure in the creation of the Pesticide Management Code of Quebec, which has been in effect since 2003. She has received several awards for her involvement in the environment and is a member of the prestigious "Cercle des Phénix".

2 comments on “Hardy Geraniums, Very Drought-Resistant

  1. Maryl discuillo

    I bought a citronella plant and later was told it is a geranium. Is this true? It is growing well, but no flowers. Not enough sun? Gets about 4 hrs rest shady but bright . I live in so ca very hot How often should I water? Thanks

    • Mathieu Hodgson

      It sounds like you have a citronella geranium (Pelargonium citrosum) , which is often marketed as a citronella plant. If it isn’t flowering, it probably just needs more sun. Watering varies depending on conditions. I would suggest to do so when soil starts to dry out.

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