Summer Annuals

Quick Reference


  • Wonderleaf

    – Prussic acid free. Safe for horses. Better on lighter soils and tolerates lower pH soils.Excellent forage quality similar to BMR sorghum-sudan.

BMR Sorghum Sudans

Cut & Wilt or Grazing
The following varieties all are brown mid rib (BMR) varieties with reduced lignin content resulting in increased animal performance.

  • AS 6201 BMR

– Fast starting, with a shorter harvest window

  • AS6401 BMR

    – Best regrowth & cold tolerance

  • AS6402 BMR

    – Shorter leafy plant. Good regrowth

  • AS6501 BMR

    – Best drought tolerance and quality


  • AS9301, AS 9302 (Dwarf)

    – Sudangrass

  • Teff

One direct cut

  • Masters choice corn

  • AF7101 Early Maturity Forage Sorghum
  • AF7201 Forage Sorghum

  • AF7202 Mid Season Dwarf Forage Sorghum
  • AF7401 Full Season Dwarf Forage Sorghum

CAUTION: Sorghum and Sudan products may contain prussic acid which is toxic when present. Do not graze these crops prior to recommended heights or after frost.After frost, livestock must be kept off until leaves have dried. Nitrates can also be toxic under excessive fertility and immediately after a drought
stressed crop receives rainfall.

Tracy Neff, King’s Research Agronomist explains sorghum products

Chris Teutch, VA Tech: Using Brachytic Dwarf BMR Forage Sorghums to Bridge the Extremes.

BMR Sorghum sudans

AS6201Alta seeds

A Gene 6 BMR that is easy to manage, fast-starting, economically priced, with exceptional drought tolerance. It has excellent regrowth, making it ideal for multiple high-quality cuts. Recommended seeding rate: 50-70 lbs/A.

AS6201 Tech Sheet

AS6401Alta seeds

A Gene 6 hybrid with improved disease resistance and better regrowth. We have observed occasional fields of other hybrids where regrowth due to disease pressure (fusarium) was a problem: amplified by cutting when soil conditions are moist and humidity is high. AS6401 has been developed with disease resistant tropical parentage and our observations have been very positive. Its resistance usually manifests when cutting  while soil conditions are moist and humidity is high. Recommended seeding rate: 50-70 lbs/A.

AS6401 Tech Sheet

DSC_6881AS6402Alta seeds

This gene 6 BMR has a much different growth habit then our other hybrids. 6402 is a brachytic dwarf, meaning it has many wide leaves packed on a short stalk that only gets 5 to 6 ft tall. Yield, however, is very similar to AF7401 tall hybrids. A winner for grazing but also very good for machine harvest. A gene 6 BMR dwarf forage sorghum with superior standability cut as well. It retains its quality very well if harvest is delayed. Recommended seeding rate: 40-60 lbs/A.

AS6402 Tech Sheet

AS6501Alta seeds

A photoperiod sensitive hybrid, 6501 contains both gene 6 BMR and delayed maturity. Forage quality will remain high even if the crop gets taller than recommended cutting height because the crop remains vegetative. AS6501 has the best drought tolerance of our entire sorghum sudan line up, as well as improved disease tolerance. Recommended seeding rate: 50-60 lbs/A.

AS6501 Tech Sheet

AS5201Alta seeds

A low-cost non-BMR sorghum-sudan. Best for cover crop usage. Replaces Quick Cover. Recommended seeding rate: 60-70 lbs/A.

AS5201 Tech Sheet


AS9301Alta seeds

A very exciting new Gene 6 sudangrass that has get up and go and extreme quality. AS9301 dries easier than sorghum sudangrass, which makes it possible to dry for hay. Excellent for grazing, baleage and dry hay. Recommended seeding rate: 25-30 lbs/A.

AS9301 Tech Sheet

AS9302Alta seeds

A newer dwarf version of AS 9301. Stout stalks for excellent standability. Excellent for dry hay and rotational grazing. Exceptional regrowth and BMR 6 for high digestibility. Tolerates shorter cuttings. Recommended seeding rate: 25-30 lbs/A.

AS9302 Tech Sheet


This BMR is a gene 12, not a gene 6 BMR and does not have a very dark mid rib. Hayking has excellent yields, but its fiber digestibility is lower than AS9301. Fiber digestibility and animal performance is, however, much better than non BMR hybrids. Recommended seeding rate: 25-30 lbs/A.

HayKing Tech Sheet

Forage sorghum (One cut – cut at wilt at boot stage or direct cut at soft dough)

A warm season annual that is an excellent choice for one direct cut systems (like corn silage) on marginal corn ground or after double crops. Uses 30 to 50% less water than corn and less nitrogen too. BMR trait has improved forage sorghums dramatically, and they are now considered an excellent dairy feed. Energy levels are comparable to corn and protein level is around 10 or 11%. Sugar levels are also very high. Can also be seeded with corn. Call for management info.

AF7101Alta seeds

An early season gene 6 BMR forage sorghum with good standability and drydown. It is a little earlier than AF 7201 in maturity, but with similar plant height. Very sweet stands and good for boot or soft dough harvest.
Direct harvest: seed at 80k/A. 82-85 days to soft dough stage.
Cut and wilt harvest: seed at 25 lbs/A with a drill. 50-60 days to boot stage.

AF7101 Tech Sheet

AF7102Alta seeds

Earliest BMR-6 brachytic dwarf forage sorghum. It has excellent standability. Great for silage and a double-crop option.
Recommended seeding rate: 80-90k/A. 85-89 days to soft dough direct harvest.

AF7102 Tech Sheet

AF7201Alta seeds

AF 7201 at boot stage. Cut and wilt at boot stage is an excellent management option for forage sorghums.

AF 7201 at boot stage. Cut and wilt at boot stage is an excellent management option for forage sorghums.

A shorter season gene 6 BMR forage sorghum that has very good standability and drydown. Very sweet stalks. A good choice for seeding with corn.
Direct harvest: seed at 80k/A. 90-95 days to soft dough stage.
Cut and wilt harvest: seed at 25 lbs/A with a drill. 55-65 days to boot stage.

AF7201 Tech Sheet

AF7202Alta seeds

A medium season forage sorghum. Being a gene 6 BMR brachytic dwarf it has the potential for high yield and excellent quality without lodging. This hybrid has the potential for much tillering, so it can be a good choice for organic growing conditions to form a thick canopy in situations where weeds may be a problem. Target a soft dough harvest cutting at 90 to 95 days after emergence. Good crop for double cropping in the south. 
Recommended seeding rate: 80-90k/A. 90-95 days to soft dough direct harvest.

AF7202 Tech Sheet

AF7401Alta seeds

A gene 6 BMR dwarf forage sorghum with superior standability and great nutrition. This hybrid is a full season product and is best used south of the Mason-Dixon line. 110-115 days to soft dough direct harvest.
Recommended seeding rate: 80-100k/A.

AF7401 Tech Sheet

AF8301Alta seeds

A dwarf non-BMR forage sorghum with a high stand yield. Excellent for dry cows, heifers, beef production.
Recommended seeding rate: 100-120k/A.

AF8301 Tech Sheet

Brassica Crops

Brassicas are used to extend the grazing season into late fall or early winter, or to provide very high quality summer or fall grazing. Brassicas will not lignify in hot weather, resulting in very high quality feed. They can be seeded in a mix with millet or sorghum sudan. The seeding rate is very low and cows will pick up in milk. Sometimes cattle won’t eat it the first day or two. Introduce them slowly and make sure adequate effective fiber is being fed, as brassicas are low in fiber. Typical forage analysis: 25% protein, 215 RFV.

Recommended seeding rate: 4-5 lbs/A.

See Brassica products



Mojo is Barenbrug USA’s new Yellow Jacket®Coated, improved crabgrass that thrives during the hot dry months. Crabgrass is a high quality, high yielding summer annual forage that is excellent for grazing and haying. This variety of crabgrass produces a highly digestible forage (up to 73% NDFd) and high crude protein content (25-30% early season; 15-20% mid-summer; 10% late season). Areas of adaption extend from Nebraska, south and east to the Gulf and Atlantic coasts.

Mojo Crabgrass Tech Sheet



This BMR hybrid millet produces excellent forage for superior animal performance, enhanced rates of gain and milk yields per pound of forage produced. Exceed has a dwarfing gene, which improves leaf to stem ratios, standability, and adaptation to heavier grazing pressure. The BMR gene technology improves digestibility and feed intake. It grows rapidly, is disease resistant and tolerant of drought stress, has extensive tillering capacity, and is flexible in various soil pH ranges. Regrowth and traffic tolerance is superior. No prussic acid danger. Lower moisture and faster drydown than sudangrass. Can be used to grazing, hay, or silage.

Recommended seeding rate: 15-20 lbs/A

Exceed BMR Hybrid Pearl Millet


This is a warm season annual, similar to sorghum sudans, with no prussic acid danger. Dry matter production is 20 percent less than sorghum sudans, but it has better digestibility and protein. Non-BMR Millet has smaller seeds, thus a lower seeding rate.

It needs a soil temperature of 65 degrees F or more to germinate, and growth slows down when cool weather comes (September). Frost kills it, but it can still be grazed with no fear of prussic acid. Will tolerate wetter years better than Sudan.

It needs good seed-to-soil contact and it’s not as competitive with existing grass as sorghum sudans. Like sorghum sudans, it can use lots of nitrogen.

Wonderleaf will grow a little bushier and not as tall as Sudan. Start grazing at 12 inches, but make sure the roots are not being pulled up. It should not be allowed to grow taller than 3 feet (or it will lose palatability), nor grazed lower than 6 inches.

Recommended seeding rate: 10-20 lbs/A

Wonderleaf Millet

Summer Feast Mixture

This summer annual mix will give your herd or flock lots of summer feasting. A mix of Wonderleaf Millet and forage brassica. As with millet there is no worry about prussic acid. Recommended seeding rate: 15 to 20 lbs/A.

Summer Feast Mixture Tech Sheet

Teff hay grown in western New York state

Teff hay grown in western New York state

Teff (Dry hay)

A very small seeded warm season grass that has fine leaves and stems. This product is native to northern Africa (Ethiopia) and tolerates many soil conditions. Will make very palatable dry hay that livestock and horses love. Also good for grazing after 1st cutting. We were very pleased with its performance in 2007 in regard to yield, drydown, standability and quality.

Because this is a relatively new crop, we are still learning about its management. Many customers have had excellent performance even in severe drought. However, many also had stand establishment problems, which were also evident one of our test plots. From the successes and failures we have learned the following:

  • Seed after soil has warmed over 60° F
  • Weeds must be controlled prior to seeding
  • Soil must be very firm prior to seeding. A cultipacker seeder (with all cracks taped up and the seeder practically closed) works well, but soil must be very firm prior to using the seeder.
  • Seed very shallow (surface seeding is better than too deep). If using a drill, just scratch the seed in.
  • Broadleaf weeds may need to be controlled with 2,4-D after the teff is established (3 or more leaves per plant)
  • Thickening thin alfalfa stands has had good success for making dry hay in the summer months. Works best on late 1st cuttings and 2nd cuttings. Grass and annual weeds must be controlled prior to seeding.

Read more about teff

Teff as a Cover Crop (Cornell Extension)


Good teff for dry hay. Seed in a shallow, firm seedbed after soils warm to 60 degrees and rising. Recommended seeding rate: 4-6 lbs/A.

Corvallis Teff Tech Sheet

Moxie – New!

A new teff from Barenbrug that is coated with Yellow Jacket. The coating improves the flowability in the seed drill and helps keep moisture close to the seed. Recommended seeding rate: 5-8 lbs/A.

Moxie Teff Tech Sheet