Home & Garden Trees & Houseplants

Harvesting and Replanting Sunflower Seeds

    • 1). Allow the sunflower head to dry on the stalk. This assures that the seeds continue to mature until the plant sends the signal to begin drying.

    • 2). Cut the sunflower from the stalk when the back of the flower has changed to yellow or brown, petals have shriveled and dried and the seeds are hard and dark. Leave 1 to 2 feet of the stalk attached to the flower head.

    • 3). Enclose the sunflower head in a paper bag. Secure with elastics or garden twine. Hang upside down in a dry well-ventilated area to dry. As the seeds dry they fall from the flower head and are gathered in the bag, explains the Purdue Cooperative Extension.

    • 4). Store seeds in an airtight container in a cool dark place until spring.

    • 5). Replant the seeds in the spring once the danger of frost has passed in your area. Select a site that receives full sun for at least 6 to 8 hours a day.

    • 6). Plant sunflower seeds to a depth of ½ inch, spaced 6 inches apart. The Washington State University Extension recommends thinning seedlings to a distance of 12 to 18 inches when they reach 6 inches in height.

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