Piper Sudangrass, Grasses

Piper Sorghum-Sudangrass Seed

Fast summer growth creates impressive soil-building biomass
Scavenges excess nitrogen while helping suppress weeds
Deep vigorous roots loosen compacted ground naturally
Graze only mature growth and never after frost

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Key Attributes

Botanical Name

Sorghum bicolor subsp. drummondii

Days to maturity

90 Days

Sun

Full Sun

About Piper, Sorghum-Sudangrass Seed, Sorghum-Sudangrass Seed

The Piper Sudangrass is a great catch crop for excess nitrogen that produces heavy amounts of organic matter and suppresses weeds. This grass grows quickly at heights up to 7 feet. The Piper Sudangrass is great for livestock forage, but should be grazed only when mature and never after a frost as it turns toxic.

Growing details

Planting

Sow Depth

1/2"

Days to Germination

3–10 days

Germination Type

A - No Pretreatment

Row Spacing

Broadcast or Drill

Plant profile

Life Cycle

Annual

Plant Height

84 inches

Growth Habits

Upright

Seed & variety

Seeds Per Ounce

2,500

Seed Type

Open Pollinated

Before Planting

Before planting Sorghum-Sudangrass, select an open site with drainage and soil conditions suited to sorghum-sudangrass. Control perennial weeds, remove heavy residue if it will interfere with seeding, and prepare a firm seedbed; use a soil test to correct major deficiencies. Confirm the planting window and termination plan before sowing, especially when the crop could overwinter or reseed.

Planting

Plant sorghum-sudangrass seed outdoors during its recommended seasonal window, when enough growing time remains for establishment. Broadcast or drill seed evenly, then roll or press the area to ensure firm seed-to-soil contact. Keep the surface moist until seedlings establish if rainfall is insufficient. These crops normally form a stand and are not thinned; use the separate seeding-rate guidance to control density.

Watering

Sorghum-Sudangrass needs dependable moisture while seedlings establish. Afterward, rely on rainfall where practical and irrigate only during prolonged dryness, ensuring the soil drains freely and never remains waterlogged.

Fertilizer

Base sorghum-sudangrass fertility on a soil test and planned crop use. Avoid unnecessary nitrogen, which can cause weak growth, lodging, nutrient loss, or difficult residue management.

Harvesting

Cut sorghum-sudangrass for forage at the intended growth stage, or harvest grain after heads dry and kernels harden. Monitor closely near maturity to reduce lodging, weather damage, and seed loss.

Tips

Use sorghum-sudangrass as part of a crop-rotation plan rather than leaving it unmanaged. Prevent seed production unless reseeding is intentional, and match termination method to residue and erosion goals.

AVG. Seeding Rate

1–2 lb./1,000 sq.ft.; 30–40 lb./acre.

Pests & Diseases

Anthracnose, leaf blights, rust, downy mildew, and charcoal rot affect sorghum-sudangrass. Select resistant hybrids, plant clean seed, rotate grasses, and manage crop residue. Remove volunteer sorghum that bridges seasons. Do not retain seed from moldy heads or stands with widespread stalk rot.

Sorghum-Sudangrass can attract wireworms, armyworms, aphids, grasshoppers, and birds. Use crop rotation, clean field borders, and timely harvest or termination to reduce pest buildup and seed loss.