Grow guide
How to grow Lobelia Cambridge Blue
Lobelia erinus
- Type
- Lobelia
- Zones
- USDA zones 2–11
- Sun
- Partial
- Time to harvest
- 70–90 days
- Spacing
- 6″ apart
- Density
- 4 per sq ft
- Habit
- Bush
- Frost tolerance
- Half hardy
- Sowing
- Start indoors, then transplant
- Start indoors
- 10 weeks before last frost
Care
- Water Weekly
- Deadhead As needed
- Pinch As needed
Notes
RHS AGM compact edging lobelia with pale sky-blue flowers nearly obscuring the foliage; blooms best in cool weather and with afternoon shade in hot climates.
More lobelia varieties
Grows well nearby
Track Lobelia Cambridge Blue from seed to harvest with Evengrow.
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