Read more: 15 Flowers You Can Grow To Ward Off Bugs And Other Pests Many aster seeds, including New England asters (Symphyotrichum novae-angliae), germinate best with cold stratification or ...
Keep watered for the first season if rainfall is sparse. If planting aster seeds, plant after the first frost. These seeds need cold winter temperatures to germinate in the spring. New England ast ...
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