Grow lupins in sun or partial shade in a neutral to acid soil.
Avoid over rich soil as this has a tendency to produce 'soft' growth thus necessitating the need to stake the flowers.
Propagation x seed
Sow annual species in a nursery bed in either September or March.
Transplanting the seedlings 2'(600mm) apart the following October.
Alternatively, sow the seeds in trays/pots of potting compost in March and place in a cold frame to germinate.When seedlings are large enough to handle prick out into pots to grow on till planting out time in October.
Note; named varieties will not come true from seed and should be propagated by cuttings.
Propagation x cuttings
In March/April,take 3"(75mm) long basal cuttings from the rootstock, preferably with a small piece of rootstock attached.
Insert these into a 50-50 sand and compost mixture and place in a cold frame.
When rooted, pot up into 4"(100mm) pots of potting compost and grow on until planting out time in October.
Deadhead flowers to prevent self seeding and to encourage a second flush of flowers later in the year.
Cut down flowering stems to ground level in November.