250 Seeds of Helianthus angustifolius, Swamp Sunflower, best price $9.95 new 2019
250 Seeds of Helianthus angustifolius, Swamp Sunflower Photo
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250 Seeds of Helianthus angustifolius, Swamp Sunflower :
You will get 1 packet contains 250 seeds of Helianthus angustifolius, Swamp Sunflower
USDA Zones: 3-9
Sowing: Direct sow in late fall, planting the seeds 1/2" deep. For spring planting, mix the seed with moist sand and store it in the refrigerator for 30 days before direct sowing. To start indoors, sow seeds in a flat or individual peat pots, keeping the soil lightly moist and at a temperature of 65-70 degrees F until germination, which usually occurs within 10-20 days. Keep the seedlings moist. When the weather has warmed and the seedlings are well established, transplant outdoors.
Growing: This plant tolerates drought, though it flourishes with regular moisture. It spreads by rhizomes and can be aggressive, especially in moist or rich soil. Plants that are widely spaced or in especially rich soil will reach taller than usual heights, and may need staking or support. This plant attracts bees and butterflies.
Seed Saving: After their petals drop off, the centers of the flowers will darken and develop tight clusters of seed. Harvest the seed as soon as it ripens, since small birds love to eat it. Cut the heads and spread them out to dry for several days. Thresh the dried heads to separate the seed from the chaff. Store the cleaned seed in a cool, dry place.
250 Seeds of Helianthus angustifolius, Swamp Sunflower best price $9.95 new 2019