Southern Harvest
Quality seeds for kitchen, flower and native gardeners
Image
Botanical Name
Helianthus annus 'Giant Single'
This cheerful, sunflower is a good one for cut flowers & is easily grown in a warm, sheltered spot. A popular sunflower that grows to about 1.6 m (not as tall as the Giant Russian) with a large flower head for it size. Both petals & flower centre are yellow. Stake when planting in a windy position. An ideal flower for young gardeners. 40 seeds.
Sunlight
Full
Frost Resilience
Frost Hardy
Lifespan
Annual
Sow Method
Direct or Transplant
Sowing Instructions
Sow into pots to transplant later or direct into garden in a sunny spot. Choose a sunny spot. Keep seedlings well watered, and feed sparingly with liquid fertiliser once established. May need staking for support in windy areas. Takes 60-70 days from sowing to flower.
Height
1.8 m
Spacing/Spread
0.4 m
Sowing Periods
Cool Climate Periods
Oct 1st to Jan 31st
Temperate Climate Periods
Sep 1st to Jan 31st
Tropical & Sub-Tropical Climate Periods
Jan 1st to Dec 31st