Lobelia seeds are usually used for edging beds and borders, often with Alyssum. They produce a beautiful small flower in a variety of eye catching colours.
Best grown as a half hardy annual, Lobelia seeds need to be sown under glass between January and April for flowering between August and September. Alternatively the seeds can be sown outdoors during April and June for flowering the following year.
Lobelia seeds should germinate within 10 and 21 days. When the seedlings are large enough to handle transplant them into trays 5cm apart. Lobelia plants need to be acclimatised to outside condition before planting out (when all danger of frost has passed) at 15cm apart, in an open sunny position.