Vigorous and fast growing plant. A nice-eye catcher and visual protection on fences..
They are used for cutting, as dot plants and in groups.
They make excellent cut flowers if gathered just before they are fully open. Alternatively leave them on the plant for the birds to enjoy the seed-heads that follow.
Grow sunflowers in full sun and average soil with good drainage. It is best to directly sow the seeds in the ground in the late spring. Tall plants with few side branches may require staking—sunflowers often fall when subjected to high winds and heavy rain. After flowering and setting seed, these short-lived annuals will die. If you desire continuous summer sunflowers, plant seeds every two weeks in succession from mid-spring to early summer. These outstanding annuals make superb additions to cutting garden or vegetable plots. Children also love them because they are fun to plant and grow. Sunflower heads can also be cut with their seeds intact, dried indoors and brought outside to feed wildlife in winter.
Information source: www.Learn2grow.com.
Genus - Helianthus
Species - Annuus
Variety - Evening Sun
Common name - Sunflower
Pre-Treatment - Not-required
Hardiness zones - 3 - 9
Height - 2 m
Spread - 0,40 - 0,50 m
Plant type - Annual flower
Exposure - Full Sun
Growth rate - Fast
Soil PH - Neutral, alkaline
Soil type - Any garden soil, rich fertile
Water requirements - Average, High
Landscape uses - Cottage gardens, wildlife gardens, cut flower garden
Bloom season - August - October
Leaf / Flower color - Greeen / Burgundy
Sow early spring to early summer outdoors in permanent location 12mm deep in rows 30cm apart. Keep moist.
Germination usually takes around 21 days.
When large enough to handle, thin out the seedlings to 30cm apart.
They prefer a sunny open site but will grow in most soils.
Sowing can also be done indoors in early spring, sow the seed individually in 7.5cm pots.
Germination takes 1-2 weeks at +20C.
Gradually acclimatise to outdoor conditions for 10-15 days before planting out after all risk of frost has gone.
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