Days to germination – 10 to
Days to harvest – 80 to 100 days
Plant Height – 6 to 8 feet
Plant Spacing – 18 to 24 in.
Planting depth – 1 inch
Flower heads – 10 to 12 inches diameter
Seeds per Head – A Lot!!!
These sunflowers are
generally easy to grow and tolerant of most garden
soils. Well-drained soil is preferred. They
make a good windbreak but should be planted so that they don't
shade your garden.
Sow directly in the garden
after all danger of frost is past. Thin seedlings to eight
inches and then to two feet to avoid overcrowding. I have
had pretty good success with transplanting as long as you do
not disturb the roots of the other plants.
For maximum size, feed the
plants weekly. These are both heat and drought tolerant
after they are established.
Harvesting and Use:
Harvest the seeds when the
seeds look mature, the petals are all dried and the back of
the flower heads have turned yellow. Cut from the stalks
and hang upside down in a warm dry place. Rub the
seeds out of the head when they come out with little
coaxing. Allow the seeds to continue to cure until the
shells are brittle and crack easily between your teeth.