Here’s your April gardening guide for North America’s USDA Plant Hardiness Zones: 3-10. If you don’t know what zone you live in, check the map here to find out. We’ve left off zones 1–2 (far-north Alaska) and zones 11–13 (small section of the Florida Keys, the Pacific coast between L.A. and Mexico, and Hawaii) since zones 3–10 cover 99 percent or more of the gardeners in the U.S.
Zone 3
- Dig up and enjoy parsnips still left in the garden from last fall.
- Dig compost into beds as soon as the soil can be worked.
- Fertilize established lawns.
- If weather allows, plant onion sets, lettuce, spinach, peas, sweet peas (Lathyrus odoratus), carrots, and parsnips in the garden.
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Zone 7
- Pass by broccoli and cabbage on sale at garden centers—hot weather will soon arrive, causing plants to go to seed instead of forming edible heads.
- Thin crowded carrots, chard, and lettuce.
- Remove floating row covers from peas early in the month. Drive tall, twiggy branches into the ground next to the plants for support.
- Mulch around the base of cool-season crops to keep their roots cool and moist.
- Select new azalea and rhododendron bushes while they’re in bloom to make sure that the color complements your landscape.
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Zone 9
- If slugs and snails are decimating your plants, collect them in the evening, when you’re most likely to spot them.
- Plant pumpkins, summer squash, melons, and other vegetables that thrive in heat.
- Every 2 weeks from now until late summer, plant small blocks of bush beans and sweet corn to extend the harvest until frost.
- Thin fruits on fruit trees to increase their size and keep branches from breaking.
- Plant summer bedding plants, such as petunias, lisianthus (Eustoma grandiflorum), wax begonias, and impatiens.
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Article source: Rodale’s Organic Life
Image source: System Pavers