Elderberries grow well in Department of Agriculture plant hardiness zones 4 through 9, where they can be propagated seeds. Elderberry seeds have a thick, tough seed coat and natural dormancy. They must be stratified twice to prompt germination. Although the stratification process is simple, it is time-consuming and will take up to seven months to be completed.
How To Grow Elderberry From Seeds
# 1 | Soak your elderberries seeds for 24 hours, stirring them occasionally. Strain the water, and collect your elderberry seeds.
# 2 | Plant your elderberry seeds immediately after soaking them. Fill 4-inch pots with a moistened mixture of half coarse sand and half sterile potting soil. Sow 6 elderberry seeds in each pot at a depth of 1/4 inch..
# 3 | Loosely wrap your elderberry seed pots in plastic wrap and place the pots in an area with tempatures between 75 and 80 degrees Fahrenheit. Keep the pots here for two months, re-moistening the sand mixture when it feels dry on the surface.
# 4 | Move the elderberry seed pots to an area where temperatures stay around 40 F, such as inside a refrigerator. Chill the seeds for 90 to 120 days. Remoisten the sand mixture if it feels dry on the surface.
# 5 | Transfer your elderberry seed pots to a sunny, warm spot after the cold stratification period has ended. Remove the plastic wrap and warm the your elderberry pots to 85 degrees F during the day and below 68 degrees F at night, using a germination mat. Continue to moisten the sand mixture when it feels dry on the surface.
# 5 | Watch for your elderberry seeds to begin sprouting in one to two months. Remove all but the largest of the elderberry seedlings from each pot. Decrease your watering slightly after germination, allowing the top 1/2 inch of soil to dry out between waterings. |