Hardy Geranium (Geranium phaeum) is a tall, shade-loving perennial that thrives where many other geraniums struggle. Growing 6 to 18 inches tall with a 12-inch spread, this clump-forming beauty produces deep maroon-purple flowers with slightly reflexed petals and distinctive lighter centers from May through August. It's exceptionally tough, tolerating clay soil, drought, heavy shade, and deer and rabbit browsing alike while asking for only moderate watering and low maintenance. In zones 5 through 7, it becomes a reliable workhorse for naturalizing in difficult spots where other perennials falter.
18
Partial Sun
Moderate
5-7
18in H x 12in W
—
Low
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The maroon-purple petals with their characteristic reflexed shape and contrasting whitish center ring make each bloom a small architectural detail in the garden. Unlike most geraniums that demand sun, this species actually performs best in part to full shade, making it invaluable for underplanting trees or brightening dark corners. Its lobed, soft green leaves often carry maroon blotching that adds interest even before flowers appear, and the eventual cranesbill-like seed heads extend the show well beyond the primary bloom.
Hardy Geranium serves as a ground cover and naturalized perennial for shade gardens and woodland settings. Its ability to spread gradually while remaining manageable makes it valuable for softening edges along pathways, filling in beneath deciduous trees, and creating texture-rich borders in areas where conventional sun-loving perennials won't establish.
No timeline data available yet for this variety.
Sow seeds indoors at 60 to 70 degrees Fahrenheit. Transplant seedlings outdoors after last frost danger passes.
Transplant after the final spring frost. Space plants 12 inches apart to allow for mature spread.
Remove side stems at any time to control spread and maintain shape. After flowering ends in hot summer climates, lightly shear back foliage to revitalize plants and encourage reshaping. This pruning also helps manage the plant's tendency to self-seed if desired. Deadheading is optional and tedious for larger plantings, so most gardeners simply let spent flowers remain.
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