Wait for 65°F soil
1/2–1" deep.
Cover Crop SeedsHSC-COV-033-5LB
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Crotalaria juncea
60–70Days to maturity
A seed worth growing
Sunn Hemp Cover Crop Seed
About this variety
A summer legume that builds big biomass.
Once established, sunn hemp grows fast and, in good conditions, can fix over 100 lb. of nitrogen per acre and pile on thousands of pounds of biomass within 60–90 days. It loves heat and tolerates drought and poor soil, so it suits the hottest part of the year and warm climates.
It mixes well with millet or sudangrass for a summer cover that smothers weeds. Frost kills it, but mowing before the stems turn fibrous makes it easier to handle. Treat with a cowpea-type inoculant.
Ready to mow about 60–70 days from sowing. Open-pollinated.
Specs
- Average 13,000 seeds per lb.
In stock — 5 Pounds
Current price
$21.40
Original price
Sale price
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Know before you sow
Quick Facts
Growing times vary with weather, soil and local conditions.
Growing guide
From seed to harvestMix with a grass
Sudangrass or millet.
Inoculate
Cowpea type.
Mow before it toughens
Frost kills it.
Growing Information
Scientific name
Crotalaria juncea
What it does
A warm-season legume that builds a lot of biomass and fixes nitrogen. It handles heat, drought and hard soils.
Sowing
Sow 1/2–1" deep once soil reaches 65°F (18°C). It is a weak weed fighter on its own, so it does best mixed with a competitive summer grass such as sudangrass or millet.
Inoculant
Use a cowpea/sunn hemp-type inoculant for the most growth and nitrogen.
Seeding rate
Alone: 1 lb. per 1,000 sq. ft., 30–50 lb. per acre. In a mix: 1/4 lb. per 1,000 sq. ft., 4–8 lb. per acre.
Light and soil
Full sun to part shade; grows in most soils, including dry, low-fertility ground.
Height
48" and up.
Grazing
Can be grazed until it flowers.
Caution
Flowers and seeds can be toxic to livestock.
Termination
The tall, stemmy growth is hard to handle without bigger equipment. Mow close, ideally followed by tillage; mowing before stems get fibrous helps. Frost kills it.
Seeds per lb.
About 13,000 on average.
Satisfaction Guarantee
We want every packet you buy from Hensley’s Seed Co. to grow well for you.
If anything you order from us doesn’t meet your expectations, just let us know and we’ll replace it or refund what you paid.
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