Last updated on December 2nd, 2011
ANY WINTER-SOWING success stories to report? Here, January-planted Thymus serpyllum is merrily growing in its milk-jug greenhouse. Also sprouting in recyclable containers are plantings of Lupin, Larkspur, and Iberis. These and other winter-sown seedlings require the following four things now that warmer weather has arrived:
1. Check for Water. As the weather warms, inspect containers daily for moisture. Neither seeds nor seedlings can survive dryness.
2. Provide Food. I feed my sprouts with every watering, at the rate of a quarter-teaspoon all-purpose formula to a gallon of water.
3. Increase Ventilation. You’d be amazed how much heat builds up in a milk-jug greenhouse! Increase ventilation holes in the top of the jug so excess heat can escape. Otherwise, soaring, trapped temperatures will fry the seedlings. I recently moved my containers from an open, southern location to a more sheltered, eastern one.
4. Freshen the Air. On warm, sunny days, give your seedlings a thrill. Remove or unhinge covers, and let the plants revel in the fresh, open atmosphere. Replace covers at dusk.
Be sure to post an update on your winter-sowing projects. Which seeds have germinated for you thus far?
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