Home gardeners may plant cover crop varieties for every season to replenish the soil, keep weeds at bay, and produce healthier vegetables. Every home gardener’s greatest and most likely period to employ a cover crop is during the winter.

Cover crops will add more nitrogen and organic matter to the soils and help control the growth of weeds. Here is a list of the best winter cover crops zone 6.

7 Best Winter Cover Crops for Zone 6

1. Subterranean Clover

This nitrogen fixer thrives where winter temperatures do not fall below 10°F. It blooms for a longer period (From mid-July through mid-September) than typical red clover.

subterranean clover

During their growing season, subterranean moss clovers farmers require at least 12 inches of rain, growing close to the ground. These winter cover crops zone 6 supplies nitrogen to the soil and are excellent for loosening hard soils, weed control, and erosion control.

2. Hairy Vetch

Hairy vetch is the greatest winter annual legume for milder southern climates, as it can withstand freezes as low as -10°F. It grows well on various soils, fixes over 100 pounds of nitrogen per acre, and releases roughly half of it to the cash crop succeeding it.

hairy vetch

Lana vetch and purple vetch are two other vetches that produce more biomass and nitrogen from spring plantings than hairy vetch. Vetches increase the availability of phosphorus (P) in the soil and provide a great home for beneficial insects that devour or parasitize insect pests.

3. Hulless Oats

Hulless Oats are a great cover crop for contributing a lot of organic matter to your soil. It’s worth noting that they’ll die if the temperature drops below 10°F in the winter. Tea can be made from oat straw stems. For a winter cover crop, sow later in the summer.

hulless oats

Oats are a weed-controlling annual grass that generates quick biomass. They have a fibrous root system that scavenges minerals from the soil, and when mixed with legumes, they can boost legume yield. Four-foot tall cool-season annual cereal grasses, these winter cover crops zone 6 are a four-foot-tall cool-season annual cereal grass. Because they don’t grow well in hot, dry weather, they’re also known as spring oats.

4. Red Clover

Red clover is vigorous, shade tolerant, winter hardy, and can be established relatively easily. It is commonly intercropped in early spring with small grains. Because it starts growing slowly, there is minimal competition between it and the small grain.

red clover

Red clover is also successfully intercropped with corn in the Northeast if the herbicides do not have significant residual activity.

5. Cereal rye

Red clover is a robust, shade-tolerant, winter-hardy plant that is reasonably easy to establish. This winter cover crops zone 6 is typically grown with little grains in the early spring. It has little competition with the little grain since it grows slowly at first.

cereal rye

In the Northeast, red clover can successfully intercrop with maize if the herbicides do not have substantial residual activity.

6. Crimson clover

It’s also known as winter rye, and it’s a robust winter crop that’s simple to establish. Because of its rapid germination and winter, hardiness may be planted later in the fall than most other species, even in colder climes.

crimson clover

The decomposition of cereal rye waste has been found to have an allelopathic impact, which can chemically suppress the germination of tiny broadleaf weed seeds.

7. Bicultures

For optimum cover and biomass, weed suppression, and favorable habitat, a (two-species combinations) of N-rich vetches with rye, barley, or oats are typically planted. Their balanced carbon-to-nitrogen (C: N) ratio promotes soil organic matter development and delivers slow-release nitrogen throughout the growing season.



One of the best periods for backyard gardeners to improve their soil health is during the winter. Gardeners can enhance soils for a better gardening season the following year by using those mentioned above seven best winter cover crops zone 6 in the fall, winter, and early spring with little effort.

WINTER COVER CROPS: Best Winter Cover Crops for Vegetable GardenWinter Cover Crops for Zone 9 | Winter Cover Crops for Zone 7 | Winter Cover Crops for Zone 6

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