Water, Light & Heat
Seedlings are usually much more prone to under and over watering. Keep soil moist but not soggy and let dry slightly between waterings.
Try to provide at least 10-16 hours of direct, bright light. Greenhouse conditions are best but if you’re keeping seedlings indoors, use artificial, full spectrum “day” light to supplement if needed.
Most seedlings like to be kept between 55-70 degrees.
All seedlings need at least 1-2 weeks of “hardening off” before planting outdoors.
Set them outside in a location that is protected from wind and direct sun for a few hours at a time when outdoor temps are at least 45F. Gradually increase the time outdoors and light exposure over the next 1-2 weeks or until ready to plant.
When To Plant
In our climate, Spring and true “frost-free” dates are often unpredictable. We know you’re eager to get those gardens growing, but for the best chance of survival for your seedlings, it’s best to hold off on planting outdoors as long as possible.
Early May: Alliums, Spinach, Chard, Beets, most Brassicas, Pansies. These plants can all tolerate light frosts as long as they are properly hardened-off.
After Frost Free Date (May 16): Greens, Beans & Peas, Perennial Flowers & Herbs, most Annual Flowers & Herbs, most Annual Flowers.
Late May: Tomatoes, Tomatillos, Husk Cherry, Peppers, Eggplants, Cucumbers, Melons, Squash, Sunflower, Morning Glory, Basil. These plants all have the best chance of survival when planted 1-2 weeks after the last frost.
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