25 Tuberosum Geranium Seeds | Hardy Purple Cranesbill

Tuberosum Geranium, also known as Hardy Purple Cranesbill, is a charming perennial that brings long-lasting color to borders, rock gardens, and woodland plantings. Its deeply lobed foliage forms a low, spreading mound that serves as an attractive ground cover, while the purple, saucer-shaped flowers rise above the leaves on slender stems. This hardy cranesbill is valued for its ability to naturalize and return year after year in suitable climates.

Easy to grow from seed, Tuberosum Geranium is a rewarding choice for gardeners seeking a reliable, low-maintenance perennial. It pairs well with other perennials and ornamental grasses, and its nectar-rich blooms attract pollinators to the garden.

Plant Features

• Hardy perennial cranesbill with purple, five-petaled flowers
• Forms a low, spreading mound of deeply lobed green foliage
• Works well as ground cover, in borders, or in rock gardens
• Attracts bees and other pollinators to the garden
• Returns each year in suitable growing zones

Growing Information

• Botanical Name: Geranium tuberosum
• Plant Type: Herbaceous perennial
• Sunlight: Full sun to partial shade
• Soil: Well-drained, moderately fertile soil
• Water Requirements: Moderate; keep soil evenly moist but not waterlogged
• Growth Habit: Low-growing, clump-forming, spreading
• Bloom Season: Late spring to early summer
• Mature Height: Approximately 12 to 18 inches
• Spacing: 12 to 18 inches apart

Planting & Care

Sow Tuberosum Geranium seeds indoors in late winter or directly in the garden after the last frost. Press seeds lightly into the soil surface and cover with a thin layer of soil, as light aids germination. Keep the growing medium consistently moist and maintain a temperature around 65 to 70°F. Germination typically occurs within 2 to 4 weeks, though it can be irregular.

Once seedlings have several sets of true leaves, transplant them outdoors after hardening off. Choose a location with well-drained soil and partial to full sun. Water regularly during the first growing season to help plants establish. In subsequent years, cranesbill is relatively drought-tolerant once established. Deadhead spent flowers to encourage continued blooming and to prevent unwanted self-seeding.

What's Included

25 Tuberosum Geranium seeds (Hardy Purple Cranesbill).