Susan Glaese shares her guide to planting seedlings in spring, including tips on planting temperature, water, transplanting, food, wind and light.
Hardening off seedlings is a gardener's way of doing the same thing for plants. You can't just take young sprouts that have grown vigorously in a warm indoor environment, plunk them outside into the cool spring ground, and expect them to thrive.
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Diagrams for optimum germination temperature and range degrees Fahrenheit and optimum growing temperature and range degrees Fahrenheit.