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Growing Sunflowers

Growing Sunflowers

Ring ofFire


Fast-growing annuals with large flowers that are very easy from seed. Attractive in beds and containers and a good cut flower. Available in tall to dwarf forms in a range of colors. Attracts butterflies and produces an edible seed favored by wild birds. Sow seed in spring once the danger of frost has passed. For earlier flowering, start seed indoors 4 to 6 weeks before outdoor sowing time. Plant seed about ½ inch deep.


For sites in full sun with well-drained soil. Tall types are ideal for background plantings and screening, while dwarf types are excellent for pots and mixed containers. Tall forms may require staking or support in windy areas. 

Fertilizer Recommendations

Use full rates of Algoflash Flowering Plant 4-6-7 Liquid Fertilizer (51087), Neptune Fish & Seaweed Fertilizer 2-3-1 (51221), or Osmocote 14-14-14 (51173).

Alternative Products

Another annual cut flower is Cherry Brandy Rudbeckia (07661).  Other good background or screen plants are Jung's Giant Everblooming Sweet Peas (07886) and Carmencita Bright Red Castor Bean (07642).

Complimentary Products

A moderate feeder, plants benefit from regular fertilization. Natural Jute Twine (52886) can be used to tie stems to supports in windy areas. Serenade Garden Disease Control concentrate (50297) can treat powdery mildew.

Product Recommendations

Plantable 2-1/4" Round Jiffy Peat Pots (53222) are ideal for starting seed indoors.

Sunflower Facts

Generally problem-free. Powdery mildew and caterpillars can occasionally be problems. The common name Sunflower comes from the way the flowers turn to follow the sun as it moves across the sky. A US native species. 

Growing Tips