How to Prune sunflower 'Meteor'?
Cut back after flowering
sunflower 'Meteor' · Helianthus × multiflorus 'Meteor'
Grow in moderately fertile, moist but well-drained, neutral to alkaline soil in full sun. Sunflowers generally need a long hot summer to flower well. May need support, see staking: perennials. Mulch annually with compost or manure, and divide every 3-4 years to maintain vigour
Cut back after flowering