Robustica Lady's Mantle is a hardy perennial flower that brings chartreuse blooms and soft, pleated foliage to gardens from spring through summer. This heirloom cultivar of Alchemilla mollis thrives in zones 4 and produces delicate flower clusters perfect for cutting and drying, reaching 18-24 inches tall and spreading 24-30 inches wide. Its elegant simplicity and reliable performance make it a garden staple for gardeners seeking long-lasting color and texture.
2
Full Sun
Moderate
4-4
24in H x 30in W
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Moderate
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The lime-green flowers appear in dense sprays starting in spring and continue through summer, creating an airy, cloud-like presence in the garden. Robustica grows deer-resistant and tolerates full sun exposure, though it prefers cool conditions and consistent moisture. Its pleated, velvety foliage catches water droplets beautifully after rain, adding an extra layer of garden magic that makes this cultivar worth the space it occupies.
Lady's Mantle excels in cut flower arrangements, where its delicate green flower sprays complement deeper hues or stand alone as an ethereal, airy design element. The flowers dry exceptionally well for dried arrangements, retaining their chartreuse color and soft texture. Gardeners prize it for filling the middle layers of mixed borders and as ground cover in woodland or cottage garden settings.
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Sow seeds indoors 8-10 weeks before planting out after frost. Press seeds lightly into the surface or 1/8 inch deep. Keep soil at 65-70°F for 2-4 weeks to initiate germination, which typically takes 21-30 days. After sprouting, move seedlings to the refrigerator at 32-40°F for 4 weeks to break dormancy, then move to 40-55°F until transplanting.
Transplant hardened-off seedlings outdoors after the last frost date when soil has warmed.
Direct sow seeds 2-3 weeks before the last spring frost date, pressing them lightly into the soil surface.
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