What to Plant After You Pull Out Spring Crops

A bed that opens in early June is different from one that opens in August. Begin with the usual first killing frost for your garden, then work backward using the variety’s stated days to maturity. Add two weeks for slower fall growth. That accounts for declining light and cooler soil.

Read how the seed company counts days to maturity. For a direct-sown crop, some packets count from sowing while others count from emergence. Your target sowing date is the frost date minus packet days to maturity and the fall buffer. Subtract expected germination days too when the listing begins at emergence. For a transplant, the clock normally begins when it goes into the garden. Put your local ten-hour daylength date beside the frost date. Vegetable growth becomes very limited after daylight drops below that mark, even when a crop survives frost. Aim to have kale, spinach, and other fall crops close to harvestable size beforehand.

After spring greens, a warm-season crop can use the space while the soil is warm. Bush beans and basil are practical choices early enough in summer. Once late summer arrives, cool-tolerant roots and greens are more dependable than a new long-season tomato or pepper.

A midseason crop does not have to reach its biggest possible size to be useful. Quick roots and salad greens can be harvested before hard cold. A full-size cabbage or a late planting of winter squash needs more time than an opening in August can usually provide.

A shallow seed row can fail when the surface dries and crusts every afternoon. Water the furrow before sowing. Cover seed at the packet depth, then keep that narrow strip evenly damp until seedlings emerge. Drip tubing often misses this thin surface zone, so a watering can or gentle overhead watering is useful for the first days.

Hot soil can trigger thermodormancy in lettuce. Spinach also germinates poorly once soil is above 80°F. Use a soil thermometer. Shade the row so the seed zone remains damp. Refrigerating a dry seed packet is storage, not seed priming. If you want to prime spinach seed, it needs moisture first. Use a supplier’s variety-specific directions or test a small, moist batch in a cool spot before committing the row. Spinach varieties respond differently, so there is no single refrigerator schedule that works for every packet.

Pull out bolted stems and any residue carrying obvious disease. Cut healthy pea vines at the soil line if you want to leave the roots undisturbed. Those roots help hold the soil together as they decay, but they are not an instant fertilizer application for the next crop.

For a quick reset, rake a half-inch of finished compost over the bed before sowing or transplanting. Give a hungry fall brassica a balanced garden fertilizer at the product’s stated area rate. Radishes and salad turnips usually need no extra feeding in a bed that has been kept fertile. Save a laboratory soil test for the next season, when it can guide the whole garden instead of delaying a summer planting.

Late-summer brassica starts can go into a cleared bed, but do not set them out at midday in hot, drying weather. Transplant in late afternoon or on a cloudy day. Water the root ball thoroughly, then give the plants temporary shade if the forecast stays hot.

Get insect netting with openings no larger than 0.8 millimeters over hoops as soon as the transplants are planted. Coarser netting can keep out cabbageworm moths yet still admit flea beetles. Secure the edges before pests get in. Keep the soil around new plants consistently moist until roots move into the bed, then return to the deeper watering pattern used for established vegetables.

When nothing edible has time to mature, cover the soil instead of leaving it bare. A layer of clean mulch keeps the surface from baking and slows weeds. Buckwheat is useful for a short warm-season cover, but it does not need 45 days in the ground before you cut it.

In hot weather, buckwheat can begin flowering in 25 to 30 days and can make mature seed soon after. Start watching it in the third week, then mow or cut it as the first flowers open. A 45- to 50-day gap can hold one cut buckwheat crop, followed by mulch or another short sowing. For a shorter opening, mulch is simpler.