Stately exotic plant for an important focal position. All have cream to white blooms in impressive profusion. Not all will be hardy in cold/elevated areas.
Sow in trays, pots, etc of good seed compost in a propagator or warm place to maintain an optimum temperature of 70-75F (20-25C). Sow in well drained compost, just covering the seed with compost. Sow at any time of year. Germination usually takes 1-4 months.
Transplant seedlings when large enough to handle into 7.5cm (3in) pots. Grow on in a cold frame and plant out the following spring 1.2-2m (4-6ft) apart in full sun.
Prefers a well drained soil.