Broom Corn (Sorghum bicolor): Growing Guide for Decorative Stalks

Broom Corn (Sorghum bicolor)

Broom Corn is a tall (8–12 ft), grass-like annual grown for its decorative, fan-shaped seed heads used in fall displays, broom-making, and dried arrangements. Not true corn—no edible ears. Native to Central Africa, it's a heavy feeder needing rich soil and deep watering.

Quick Facts

• Common Name: Broom Corn
• Botanical Name: Sorghum bicolor (technicum group)
• Plant Height: 8–12 ft (2.4–3.6 m)
• Maturity: 110 days
• Life Cycle: Annual

Growing from Seed

• Direct sow: After last frost, soil warm. 1 in deep.
• Germination: 7–14 days (poor in cool soil).
• Spacing: Rows 3 ft apart, plants 6–12 in. Block planting aids pollination.

Care Requirements

Light

Full sun.

Soil

Rich, moisture-retentive, well-draining. Amend with compost/manure.

Watering

Deep watering (5 in) weekly. Heavy drinker.

Fertilizer

Heavy feeder: every 2–3 weeks.

Harvest

When stalks turn tan-brown. Hang upside down 3+ weeks to dry straight.

Pests & Diseases

• Corn earworm, smut, blights, rots. Monitor and treat.