Cascade Mixture Multi-Coloured Lobelia Seeds 5585. As the name suggests, Cascade Mixture has a full colour range of pinks, reds, purples, white, blues and lilac that will tumble out of containers and hanging baskets. Germination is sometimes slow but by being patient, the gardener will be rewarded with an eye-catching, multi-coloured spectacle. Growing your own Cascade Mixture is recommended as this colour range of lobelia is seldom seen in garden centres. In areas with a hot summer, we suggest growing lobelia in semi-shaded sites rather than in full sun.
How to Grow
35,000 seed/gram. Lobelia is best started indoors. Sow 8 weeks early, uncovered on the surface of the soil-less growing medium. Moisten by misting or bottom watering. Keep at 24 C (75 F) for the 20-25 day germination period then grow-on under lights at a cooler temperature of 15 C (60 F). Harden off and transplant outside to a partially shaded site after the danger of frost has passed.