Dramatic color and a dependable producer
(GOLDEN FLOWER OF THE AZTECS) Brilliant red-orange 2- 3-inch flowers; an excellent butterfly plant. These bloom over a very long season, and the plants produce masses of blooms. The large 5-foot plants are very beautiful. Common along roadsides in the high mountains of central Mexico.Asteraceae Helianthus Tithonia rotundifolia
These stout sunflowers can get to be 5 - 6' tall and 2 - 3' across. One of the only sunflowers that produce two generations in a single summer; spring sown sunflowers will flower and go to seed by summer, creating more spectacular flowers in fall.
- Ease of Growing
- Grown as
- Days to Maturity
- 70-120 (Spring/Summer), 70-120 (Fall/Winter)
- Growing Habit
- Half Hardy
Sunflowers will tolerate light frost.
- Spring Transplant, Spring, Summer
- Growing Season
- Cultivar Type
- Growing Conditions
- Warm, Hot
Sunflowers needs rich soil for good growth. They prefer full sun (though they will tolerate light shade). The taller varieties need shelter from the wind and should be placed where they won't cast unwanted shade on other plants.
- Outdoor Growing Temp
- 55°F - 95°F
- Min Outdoor Soil Temp
Don't plant out until the soil is at least 50˚ F (and preferably 60˚ F).
- Start Indoors
- Start Outdoors
- Sun: min. 6 hours daily (Warm, Hot)
Sunflowers are thirsty plants and for maximum production they need a constant supply of water.
Low nitrogen. High phosphorus. High potassium. Sunflowers like phosphorus and potassium, but not too much nitrogen as it may encourage leaf growth rather than flowering.
- High heat, Needs lots of space
- Small Gardens?
- Attracts beneficial insects?
- Fruit Size
- Plant Height
- Plant Diameter
- Hardiness Zone
- Disease Resistance
- Taste Profile