giant sunflower 'Sheila's Sunshine'

Grow in a moderately fertile, humus-rich, moist but well-drained, neutral to alkaline soil in full sun. Does well in soils that don't dry out in summer. Ideal for the back of borders. May need support. See staking: perennials

Deadhead to prolong flowering and cut back to ground level as foliage starts to yellow and die back in autumn

Propagate by division in spring or autumn

May be susceptible to slugs and snails

May be susceptible to Powdery mildews and sclerotinia diseases