Lobelia: How to grow
Perfect for containers and baskets for summer colour, Lobelia is a half hardy annual that comes in a variety of colours, traditionally purple, blue and white.
Seed should be sown undercover between January and March in trays of Gro-Sure Seed & Cutting Compost.
Keep warm, around 15-20c (60-70f). When large enough to handle transplant to pots of John Innes No1 Young Plant Compost. It is easier to transplant clumps than individual plants.
Once seedlings are established gradually acclimatise to outside conditions for several weeks before planting out after the risk of frost has passed.
Feed plants regularly during summer using Gro-Sure All Purpose Plant Food. Plant will flower between July and September.