Helianthus add structure to the summer border. Performs right thru August when other perennials rest. Plants are carefree in full sun. Finches flock to the dry seed heads.
Prefers average, neutral to slightly alkaline soil. Well drained soil is good for overwintering, but give Helianthus a good soaking if August begins to overpower. Can be divided in spring every 3-4 years. This shorter selection does not require staking.