Enormous Sunflower that's fun and easy to grow
These grand giants are fun and easy to grow with dramatic results. Kids of all ages will love them! The big-framed, strong plants reach from 12 to 16' tall to follow the sun: their brilliant golden flower faces make the entire garden a glorious bright summer celebration. A row of Sunzilla makes a wonderful living hedge that grows before your eyes. After flower petals drop and seeds have matured, the big heads of plump kernels make a feast for neighborhood songbirds.Asteraceae Helianthus annuus
These beautiful exuberant plants can reach 12' in height or more and produce flowers a foot across.
- Ease of Growing
- Grown as
- Days to Maturity
- 75-90 (Spring/Summer), 90-100 (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