Here’s a zone-by-zone to-do list for the month of April.
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April To-Do List for Zone 6
Clean up the garden in preparation for the season ahead: Remove last year's dead plants, rake back winter mulches, and top-dress beds with compost.
After you've finished preparing your beds, plant potatoes, peas, spinach, and other leafy greens as well as beets, turnips, and carrots.
Put up a trellis for tall varieties of peas as soon as they sprout.
Dig, divide, and replant perennials, such as helenium, fall asters, Shasta daisies, chrysanthemums, and phlox.
As soon as the weather settles, plant transplants of pansies, forget-me-nots (Myosotis spp.), foxglove (Digitalis spp.), and other cool-weather flowers.
Sow seeds of sweet peas, bachelor's buttons (Centaurea cyanus), and larkspur (Consolida ajacis) in flowerbeds.