Old Cobblers Farm™ Wicked Tuff Turf Sweet Clover
Legume

[{"question":"What is sweet clover and what are its primary uses?","answer":"Sweet clover (Melilotus officinalis and Melilotus alba) is a tall-growing biennial legume available in yellow and white varieties. It is primarily used as a soil-building cover crop, bee forage plant, and deep-rooted compaction breaker. Sweet clover's taproot can penetrate 4-8 feet deep, breaking up hardpan and compacted subsoil layers that other crops cannot reach. It is one of the most effective biological soil remediation tools available."},{"question":"How deep do sweet clover roots grow?","answer":"Sweet clover roots penetrate 4-8 feet deep in most soils, with documented root depths exceeding 10 feet in sandy or loamy soils. This deep root system breaks up compacted subsoil layers (hardpan), creates channels for water infiltration, and mines nutrients from deep soil horizons that shallow-rooted crops cannot access. When sweet clover roots decompose, they leave behind macropores that improve soil drainage and aeration for years."},{"question":"Is sweet clover a biennial? How long does it live?","answer":"Yes. Sweet clover is a biennial that completes its lifecycle over two growing seasons. Year one: it establishes a rosette of leaves and develops its deep root system. Year two: it bolts (sends up tall flowering stems 3-6 feet), flowers, produces seed, and dies. If managed as a cover crop, sweet clover is typically terminated in year two before seed set to prevent volunteer regrowth. Some early-flowering varieties can be managed as annuals."},{"question":"How much nitrogen does sweet clover fix per acre?","answer":"Sweet clover fixes 100-200+ lbs of nitrogen per acre over its two-year lifecycle, with most fixation occurring during vigorous second-year growth. When incorporated into the soil, sweet clover biomass provides both nitrogen and significant organic matter. A mature second-year stand can produce 4-8 tons of dry matter per acre, adding substantial carbon to the soil along with the fixed nitrogen."},{"question":"What is the difference between yellow and white sweet clover?","answer":"Yellow sweet clover (Melilotus officinalis) blooms earlier, grows slightly shorter (3-5 feet), and is generally considered more palatable for livestock. White sweet clover (Melilotus alba) grows taller (4-7 feet), blooms later, produces more biomass, and is slightly more coarse. Both fix similar amounts of nitrogen and develop deep taproots. For cover crop purposes, either works. For bee forage, yellow is often preferred for its earlier bloom. For maximum biomass, white produces more tonnage."},{"question":"When should I plant sweet clover?","answer":"Plant sweet clover in spring (April-May) or late summer (August-September). Spring planting produces the longest first-year growing period for root development. Late summer planting works in zones 5-7 where mild fall weather allows 6-8 weeks of establishment before winter dormancy. Sweet clover can also be frost-seeded in late February to March. Seed on a firm seedbed at 0.25-0.5 inches depth. Seeding rate is 8-12 lbs per acre."},{"question":"Is sweet clover toxic to livestock?","answer":"Sweet clover contains coumarin, which can convert to dicoumarol (a blood anticoagulant) when sweet clover hay is improperly cured or becomes moldy. This condition—sweet clover disease—causes internal bleeding in cattle. Fresh sweet clover pasture is safe to graze. The risk exists only in poorly cured hay or silage. To avoid issues: do not feed moldy sweet clover hay, alternate sweet clover hay with other hay every two weeks, and never feed sweet clover hay to animals before surgery."}]