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Any seeds that are indicated as needing a period of warm stratification followed by cold stratification should be subjected to the same measures, but the seeds should additionally be stratified in a warm area first, followed by the cold period in a refrigerator later. Warm stratification requires temperatures of 15–20 °C (59–68 °F).
Seeds. The flowers are small and plentiful. At a young age Carolina coralbead appear greenish. The seeds need cold stratification of three months. Seeds germinate in 21 to 30 days at 68 °F. The plant blooms in late spring and the fruits, abundant bright red berries, are mature by late summer.
This method—called cold stratification—only requires a few weeks to a month in your freezer before the poppy seeds are ready to plant. You can even plant the ice cubes in the winter, as long ...
[11] [12] The seeds of some milkweeds need periods of cold treatment (cold stratification) before they will germinate. [13] To protect seeds from washing away during heavy rains and from seed–eating birds, one can cover the seeds with a light fabric or with an 0.5 in (13 mm) layer of straw mulch. [14] However, mulch acts as an insulator ...
The seeds of some milkweeds need periods of cold treatment (cold stratification) before they will germinate. [16] To protect seeds from washing away during heavy rains and from seed-eating birds, one can cover the seeds with a light fabric or with an 0.5 in (13 mm) layer of straw mulch. [17] [18] However, mulch acts as an insulator. Thicker ...
The plant can be reproduced generatively with the seeds. The seeds need a cold stratification of two to three months. Therefore, it can be sown through summer or autumn and the seeds then germinate in spring. As it is a Perennial plant, it doesn't need to be sown yearly and has a very long lifespan.