Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Audio Play Icon Headphones Icon Plus Icon Minus Icon Check Icon Print Icon Note Icon Heart Icon Filled Heart Icon Single Arrow Icon Double Arrow Icon Hamburger Icon TV Icon Close Icon Sorted Hamburger/Search Icon

The Plant Guide

Browse the Full Plant Guide


Helianthus annuus and cvs.

hee-lee-AN-thus AN-yew-us Audio

Sunflowers are some of the easiest plants to start from seed. They are available in numerous cultivars which span the range of heights, flower colors, and form.

Noteworthy CharacteristicsCultivars include 'Giant Grey Stripe' and 'Russian Giant'; 4- to 5-foot-tall ‘Primrose Yellow’; pure yellow, black-centered ‘Sunrich Lemon’, a pollen-free cultivar ideal for cut flowers; ‘Valentine’, a 5-foot-tall, base-branching plant with pale yellow petals and a big brown middle; 6- to 8-foot-tall ‘Autumn Beauty’ and the similar ‘Inca Jewels’, with flowers in a mix of colors; ‘Music Box’, a 2-1/2 footer similar to ‘Autumn Beauty’; ‘Sunburst’, another mix of colors on 4-foot plants; ‘Taiyo’, a 6-foot version of the classic tall sunflower; ‘Sunbeam’, a green-hearted golden flower; and ‘Teddy Bear’ and ‘Orange Sun Double', doubles.

CareTall cultivars may require support. Needs long, hot summers to flower well. Grow in moist but well-drained, moderately fertile, humus-rich soil.

PropagationSow seed in situ in spring or in pots in late winter.

ProblemsCommon: downy mildew, powdery mildew, canker, rust, and many fungal leaf spots. Also susceptible to damage from caterpillars, cutworms, beetles, and weevils.

  • Genus : Helianthus
  • Plant Width : 1 to 3 feet
  • Plant Height : 10 to 15 feet
  • Plant Type : Annuals
  • Bloom Time : Fall, Summer
  • Light : Full Sun
  • Moisture : Medium Moisture
  • Maintenance : Moderate
  • Plant Seasonal Interest : Summer Interest
  • Flower Color : Yellow

Related Plants

Related Articles

More From the Plant Guide

Winter Interest

Partial Shade

Browse the Full Plant Guide

We hope you’ve enjoyed your free articles. To keep reading, become a member today.

Get complete site access to decades of expert advice, regional content, and more, plus the print magazine.

Start your FREE trial