Growing Lobelia from seed is very rewarding. If starting Lobelia seed outdoors, it will not begin to flower for two months after the seed is planted. For quicker flowering, start the ground cover seeds indoors 10 - 12 weeks before the last frost is due.
Since the Lobelia seeds are very small, plant them on top of finely prepared soil without covering them. Transplant Lobelia seedlings after all danger of frost are passed, spacing them 6 inches apart. Remove flower spikes after blooming to produce further growth.
Groundcover Specifications
- Season: Annual
- USDA Zones: 3 - 9
- Height: 4 - 5 inches
- Width: 6 inches
- Bloom Season: Summer through fall
- Bloom Color: White
- Growth Rate: Moderate
- Environment: Full sun to partial shade
- Soil Type: Well-drained soil, pH 5.5 - 6.5
- Deer Resistant: Yes
Planting Directions
- Temperature: 72F
- Average Germ Time: 14 - 21 days
- Light Required: Yes
- Depth: Press lightly into the soil but do not cover
- Sowing Rate: Approximately 5000 lobelia seeds cover 100 square feet or 12 seeds per plant
- Moisture: Keep soil slightly moist, but not wet until germination
- Plant Spacing: 6 inches
