Buddleia davidii (Butterfly Bush) seeds
Well known and much loved colourful shrub which will flower from mid-summer to autumn, producing an abundance of fragrant flowers which are very attractive to butterflies. An easy shrub to grow from seed which can flower the first year from an early sowing. Also easy to maintain - cut back hard in spring for best results.
Flowers: Mid-summer to autumn
Height to 3m - best pruned back hard in spring
Position: Sun in any reasonable soil
Packet of 50 or 250 seeds
RHS Plants for Pollinators.
The RHS Plants for Pollinators mark is only given to plants that support pollinating insects. Find out more at rhs.org.uk/plantsforpollinators
Sowing Instructions: Sow at any time of the year. Sow on the surface of moist seed compost, eg. John Innes in pots or trays. For best results do not cover the seed. Place in the fridge or other cold place between 2-5C for 4 weeks as a cold period helps break dormancy and improve germination. Then, move to a propagator or seal in a polythene bag and maintain an optimum temperature of 18-22C. Make sure that the compost remains moist but take care not to over wet it. Germination usually occurs in 20 -30 days. As the seedlings emerge, gradually increase ventilation by opening the bag or propagator vents.
Growing Instructions: Transplant seedlings when large enough to handle into 7.5cm pots. Grow on in cooler conditions with plenty of light, but shaded from direct sun. In the spring, gradually acclimatise to outdoor conditions and grow on until mature enough to be planted out in the garden. Likes a sunny position in any reasonable soil.