Ebony Cowpea

Fast growing, multi purpose legume – drought tolerant

Vigna unguiculata

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High nutritional value and palatability. Good soil conditioner and adapted to a wide range of soil types. Easy and quick to establish, high yielding with high seed production. Seed rate as a monoculture or in a mix will depend on soil moisture and/or irrigation. Ensure soil temperatures are 16°C and rising.

Key attributes

  • High nutritional value and palatability
  • Easy and quick to establish, high yielding
  • Long production season
  • Resistant to Phytophthora stem rot races 3 and 4
  • Excellent source of nitrogen in summer rotations
  • Good companion legume with millet and forage sorghum

About this variety

Ebony Cowpea is an annual diploid summer legume forage crop exhibiting a spreading growth habit. Ebony Cowpea was released to Australia as a grazing type of cowpea suited to subtropical coastal areas with medium rainfall or in areas with irrigation.

It can be used as a dual-purpose crop either for grain and/or forage. It is an annual with herbaceous growth habit – from prostrate trailing plant to climbing vine. It produces high seed yields where both seed and plant offer high nutritive value and palatability.

It is easy to establish and is known to improve soil fertility through nitrogen fixation. It is widely adaptable to a range of soil types and has greater drought tolerance than other pulses. Used as a grain for human consumption or as forage for livestock.

Planting & grazing notes

Ensure soil temperatures are 16°C and rising. Sow at a depth of 3 – 5 cm. Use 18 – 35cm row spacings to achieve 9 – 13 plants per m². Wider row spacings allow for better livestock access and reduce trampling. Requires inoculant Group I. Ebony Cowpea is susceptible to frost.

Disease & pest resistance

Resistance to stem rot disease races 3 and 4 of the severe root rot fungus, Phytophthora vignae, and good tolerance to Phytophthora root disease. Prone to Bean fly attack on late sown crops at the 2 – 3 leaf stage.

Stand life

Annual summer legume forage crop with a long production season.

How it's sold

FormPackStatus
Bare25 kgIn stock
Ebony Cowpea

FAQs

Is there a summer legume that won't get wiped out by root rot on heavier ground?

We recommend Ebony Cowpea. It is resistant to stem rot races 3 and 4 of the severe root rot fungus Phytophthora vignae and has good tolerance to Phytophthora root disease. It is adapted to sandy through to heavy soils down to pH 4.0 (CaCl2). Inoculate with Group I and sow once soil temperatures are 16°C and rising.

What seeding rate for Ebony cowpeas, dryland vs irrigated?

We recommend sowing Ebony Cowpea at 15–20 kg/ha. Within that range, the right rate depends on soil moisture, whether the crop is irrigated, and whether you sow it alone or in a mix. Sow 3–5cm deep in 18–35cm rows, aiming for 9–13 plants per m², once soil temperatures are 16°C and rising.

What summer forage has no prussic acid risk for cattle?

Ebony Cowpea is a good choice, because it is a legume with no prussic acid risk, unlike sorghums. It has high nutritional value and palatability, and it is a good companion legume with forage sorghum or millet, such as our Bounty Forage Sorghum or Shirohie Millet. As with any new feed, introduce stock gradually.

What do I need to watch for with late sown summer legumes?

With Ebony Cowpea, the main risks of late sowing are bean fly attack at the 2–3 leaf stage and frost. Ebony is frost susceptible, so a late crop may be cut short in autumn. Sow into warm soil with good moisture, inoculate with Group I, and monitor seedlings closely for bean fly.

How do I get a good plant stand with cowpeas, row spacing and depth?

For Ebony Cowpea, we recommend sowing 3–5cm deep in 18–35cm rows to achieve 9–13 plants per m². Wider rows give livestock better access and reduce trampling. Sow 15–20 kg/ha of seed inoculated with Group I once soil temperatures are 16°C and rising.

I want a summer crop I can cut for hay or silage that's higher in protein than straight sorghum.

We recommend mixing Ebony Cowpea with forage sorghum or millet, such as our Bounty Forage Sorghum or Shirohie Millet. Ebony is a good companion legume that adds high nutritional value and palatability to hay and silage, and it improves soil fertility through nitrogen fixation. It also has a long production season and good drought tolerance.

Can Ebony cowpeas grow on acid soils?

Yes, we recommend Ebony Cowpea for acid soils: it suits a soil pH down to 4.0 (CaCl2) and is adapted to a wide range of soil types, from sands to heavy soils. Inoculate with Group I so it can fix nitrogen, and sow 3–5cm deep once soil temperatures are 16°C and rising.

What summer green manure will condition the soil and add nitrogen before we sow canola?

Ebony Cowpea is an excellent summer green manure. It fixes nitrogen when inoculated with Group I and is a good soil conditioner ahead of your winter crop. It is quick to establish, drought tolerant and adapted to many soil types. Terminate it before it sets seed and allow time for the residue to break down before sowing.

What summer feed will keep going longest into autumn for my cattle?

We recommend Ebony Cowpea, an annual summer legume with a long production season. It is palatable and nutritious, drought tolerant and has no prussic acid risk. Use the feed before frost, as Ebony is frost susceptible, and sow in wider rows (up to 35cm) to give cattle better access and reduce trampling.

Ebony or Buff cowpeas for a drier dryland summer crop?

Both are drought tolerant and suit 500mm+ rainfall areas, so check your summer rainfall first. We suggest Ebony Cowpea where root rot is a concern, as it resists Phytophthora stem rot races 3 and 4, and Buff Cowpea where quick flowering matters, as it flowers 49–55 days after sowing. Buff does not like to be waterlogged.