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Hairy Indigo Seed - 10 lb. Bag


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Hairy Indigo Seed - Hairy Indigo (Indigofera hirsuta) is an erect-growing, reseeding, summer annual legume that may grow 4 to 7 feet tall if not grazed. The plant is somewhat shrubby, and stems become very woody as the plant matures. Stems and leaves are covered with short, bristlelike hairs. It is moderately resistant to root-knot nematode. Hairy indigo is adapted to sandy soils that have good drainage and grows on land that may be too dry for other legumes. It does not grow well on soils that flood for an extended period of time. Early-and-late-flowering types have been developed, but all are now marketed as common hairy indigo.

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Hairy indigo is mainly used for grazing, and growth is sometimes accumulated to furnish high-quality grazing in the fall for weaned calves or dry cows. Hairy indigo leaves are also nutritious for goats. Studies at the University of Florida showed that hairy indigo can produce up to 12 tons of dry matter per acre that would contain about 20% crude protein and 50-60% digestibility. The leaves also contain high levels of mineral nutrients.

Cattle may reject hairy indigo when they are first placed in a pasture, but after one or more days they begin grazing. After adapting to hairy indigo, cows and calves readily consume it. Cattle may develop sores on their feet and legs when grazing hairy indigo in the rainy season due to irritation of the wet skin of the cattle by the bristlelike hairs on the stems of the plants.

Establishment and management procedures are similar to those for other warm-season annual legumes. Hairy indigo is easy to establish and requires very little management afterwards. Hairy indigo requires soil pH of up to 6; the plant will not grow well or persist on acid soils. Liming may be required to achieve the optimum pH. Depending on soil test results, it may be better to apply dolomite (which also supplies magnesium) than lime. How much lime will be needed depends on the soil type and original or native pH of the soil. Contact your country Extension agent for help on how you can test your soil and determine your liming needs. For good establishment, 15 lb of seed per acre is recommended. Disking, rolling or packing the soil after broadcasting the seed, will give better establishment. Establishment and production can be enhanced with application of 30 and 60 lb/acre of P2O2 and K2O, respectively. Inorganic nitrogen fertilizer is not required since hairy indigo is a legume and will produce its own nitrogen from the air.

Due to its hardseededness, some seed may lie dormant in the soil for many years after being planted and then germinate when the soil is disturbed. To ensure that the plant reestablishes each year from seed, it is advisable to withdraw animals from the pasture or reduce grazing intensity two weeks before the plants begin to flower or in lat summer or early fall. This practice would allow some of the plants go to seed. Grazing animals will help distribute the seeds in the pastures. The self-seeding nature of the plants is good from the forage standpoint, but it is a negative characteristic in terms of the weed potential of the plant. Consequently, vegetable and other row crop farmers often consider hairy indigo a weed. However, used as a cover crop or green manure crop, hairy indigo can effectively suppress nematodes that might otherwise seriously damage succeeding crops. Besides grazing, hairy indigo has also been used for hay and silage.

Plant: April-July
Coverage: 5-8 lbs per acre

Lime: 400 lbs.
Inoculant Required: EL/Garden Combo Inoculant
Protein Level: 18%-20%
Matures: 120-150 days

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