How to Grow Clover (Cover Crop Mix)
Wikimedia Commons
Clover (Cover Crop Mix)
Trifolium spp., Medicago sativa, and related legumes
grassCover crops are plants grown primarily to improve soil health, prevent erosion, and suppress weeds rather than for harvest. Clovers and other legumes are nitrogen-fixing cover crops that enrich soil by converting atmospheric nitrogen into plant-available forms. They are typically grown between cash crop seasons or interplanted in established gardens to maximize soil fertility and ecological benefits.
Looking for a specific variety?
When should you plant Clover (Cover Crop Mix) in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Clover (Cover Crop Mix) timeline · Pittsburgh, PA (Zone 6b)
-
Plant Clover (Cover Crop Mix)
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Clover (Cover Crop Mix)
Around May 17≈ 30 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Clover (Cover Crop Mix) dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Most cover crops thrive across zones 1-11; specific varieties vary by region and season
Sign up free to see if Clover (Cover Crop Mix) grows in your zone — and get a personalized planting timeline.
Get my Clover (Cover Crop Mix) timeline →Growth Stages
Germination & Seedling
7-14 daysTiny seedlings emerge with cotyledons visible. Growth is slow initially as roots establish.
Keep soil consistently moist (not waterlogged) for 2-3 weeks. Protect from foot traffic. Thin if planted in rows, though broadcasting eliminates this need.
Vegetative Growth & Establishment
3-6 weeksPlants develop true leaves, stems elongate, and root systems deepen. Clover shows characteristic trifoliate leaves.
Continue moderate watering during dry spells. Allow plants to grow unmolested. Avoid herbicide drift from nearby vegetable beds.
Mid-Growth & Nitrogen Fixation
4-8 weeksPlants establish robust growth, nodules form on legume roots (fixing nitrogen), and biomass accumulates. Flowers may begin to appear.
Minimal intervention needed. Monitor for pests and diseases but typically avoid spraying. Mow if growth becomes excessive and shades vegetable crops.
Flowering & Biomass Peak
4-8 weeksCover crops flower (clover produces white, red, or pink flower heads), attracting pollinators and beneficial insects. Peak biomass accumulation occurs.
Do not harvest or mow unless biomass is suppressing cash crops. Allow flowers to attract beneficial insects. Plan incorporation timing based on your next planting.
Incorporation & Decomposition
Ongoing (2-4 weeks minimum before next planting)Cover crop is tilled or chopped into soil; organic matter begins decomposing and releasing nutrients over weeks and months.
Incorporate 2-3 weeks before planting cash crops (allow time for decomposition). Mow or chop before tilling for faster breakdown. Water after incorporation to accelerate microbial activity.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Usually tolerated in cover crops; rarely requires intervention. Encourage predators like parasitic wasps. Rotate cover crop species annually.
-
Most problematic in alfalfa stands; minimal issue in mixed clovers. Timely mowing before adults emerge (late spring) prevents population buildup.
-
and
Hand-pick if severe. Encourage ground beetles and other predators. Allow cover crop to mature—they naturally suppress slugs through dense canopy.
-
Typically controlled by natural predators in cover crop systems. Avoid broad-spectrum insecticides. Spray forceful water if population explodes (rare).
Uses
Edible clover leaves and flowers
CulinaryYoung clover leaves and flowers are edible raw in salads or cooked as greens, and are rich in vitamins and minerals. Red and white clover flowers can be used in teas or as garnishes. [source]
Traditional herbal remedy
MedicinalRed clover is traditionally used in herbal medicine for digestive support and women's health. Isoflavones in red clover are studied for various health benefits in folk medicine. [source]
Soil nitrogen fixation and improvement
HouseholdLegume cover crops form symbiotic relationships with rhizobia bacteria, converting atmospheric nitrogen into soil-available nitrate. This enriches soil and reduces the need for synthetic fertilizers by 50-100 lbs nitrogen per acre per season. [source]
Pollinator and beneficial insect food
WildlifeFlowering cover crops provide nectar and pollen for bees, butterflies, and other beneficial insects. Dense clover stands support predatory insects that control garden pests. [source]
Erosion prevention and weed suppression
HouseholdCover crop root systems stabilize soil and prevent erosion, while dense foliage suppresses weed germination by blocking light and competing for resources. Reduces bare soil exposure and runoff. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Cover crops are not harvested for food; instead, they are incorporated into soil or mowed and left as mulch. For maximum nitrogen fixation, allow legumes to flower before incorporation. Time incorporation 2-3 weeks before planting cash crops to allow organic matter decomposition. Mow 1-2 inches above soil surface with a scythe, sickle, or brush hog. Till or dig in using a broadfork or garden tiller. For a no-till approach, cut and leave as surface mulch (slower nutrient release).
Fun Facts
- 🌱 A single legume cover crop can add 50-150 lbs of nitrogen per acre per season without synthetic fertilizers, equivalent to one-quarter to one-half of a typical annual application.
- 🌱 Clover honey is a premium product because bees heavily visit flowering clover stands; a healthy cover crop patch can support strong hive populations during the growing season.
- 🌱 Some farmers practice 'living mulch' by interplanting slow-growing cover crops like clover directly beneath cash crops (e.g., clover between corn rows) to suppress weeds, fix nitrogen, and improve soil while the main crop grows.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Clover (Cover Crop Mix) planting timeline
Tell us your zip code and we'll calculate exactly when to start Clover (Cover Crop Mix) seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Clover (Cover Crop Mix) timeline →