25 Johnson's Blue Geranium Seeds – Hardy Perennial Purple Flowers for Garden Planting
Johnson's Blue Geranium is a beloved hardy perennial known for its masses of vivid violet-blue flowers that bloom from late spring into summer. This compact, clump-forming plant brings a soft, cottage-garden feel to borders, rock gardens, and container plantings. Its deeply cut green foliage often takes on attractive reddish tones in autumn, extending seasonal interest.
Easy to grow from seed, Johnson's Blue is a reliable choice for gardeners seeking long-lasting color with minimal maintenance. The nectar-rich flowers attract bees and butterflies, making it a valuable addition to pollinator-friendly landscapes.
Plant Features
- Produces abundant violet-blue, saucer-shaped flowers
- Compact, mounding growth habit
- Foliage develops reddish autumn color
- Attracts pollinators such as bees and butterflies
- Hardy perennial that returns year after year
Growing Information
- Botanical Name: Geranium × johnsonii 'Johnson's Blue'
- Plant Type: Hardy perennial
- Sunlight: Full sun to partial shade
- Soil: Well-drained, moderately fertile soil
- Water Requirements: Moderate; keep soil evenly moist
- Growth Habit: Clump-forming, mounding
- USDA Hardiness Zones: 4–8
- Bloom Season: Late spring to early summer
- Mature Height: 12–18 inches
- Spacing: 12–18 inches apart
Planting & Care
Sow seeds indoors 6–8 weeks before the last frost. Press seeds lightly into the surface of a moist, well-drained seed-starting mix; do not cover deeply, as light aids germination. Maintain a temperature around 65–70°F and keep the medium consistently moist but not waterlogged. Germination can be slow and uneven, so be patient.
Once seedlings have several true leaves and all danger of frost has passed, harden them off gradually and transplant outdoors. Space plants 12–18 inches apart in a sunny to partially shaded location with well-drained soil. Water regularly during establishment, then reduce frequency as plants mature. Deadhead spent blooms to encourage continued flowering and trim back foliage in late autumn if desired.
What's Included
25 Johnson's Blue Geranium seeds for garden planting.