Pearl Millet

Pennisetum glaucum

grainannual Zone 5–11

Warm-season annual C4 cereal grain grown for human food, feed grain, forage, and cover. The most widely cultivated millet worldwide and a staple in arid regions of sub-Saharan Africa and South Asia, pearl millet has gained interest in temperate dryland systems as a drought- and heat-tolerant alternative grain. Best adapted to Zones 5-11 wherever frost-free seasons exceed about 90-110 days. Highly tolerant of sandy soils, low fertility, and pH from 5.5 to 8.0, performing best at pH 6.0-7.0. Grain yields of 60-80 bu/acre are achievable under good management; forage yields of 4-8 tons dry matter/acre are typical.

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Crop Snowflake Score

Overview

Pearl millet (Pennisetum glaucum (L.) R. Br.; syn. Cenchrus americanus) is a warm-season C4 annual grass in the Poaceae. It is planted after frost risk has passed and soil temperatures at the 2-inch depth reach at least 65-70°F (18-21°C); germination is best at 75-90°F. Grain types are typically drilled at 4-5 lb seed/acre in 7-30 inch rows; forage types are seeded at 15-25 lb/acre. The crop has a deep, fibrous root system enabling exploitation of subsoil moisture and giving exceptional short-duration drought tolerance — yields are commonly higher than sorghum or corn in the most marginal moisture environments. Nitrogen is the main yield driver (typically 60-100 lb N/acre for grain; split applications increase efficiency); phosphorus and potassium are matched to soil tests. Pearl millet is largely free of the major corn pests (rootworm, European corn borer) and is non-host for soybean cyst nematode, making it a valuable rotation crop. Major diseases include downy mildew (Sclerospora graminicola), rust, and Pyricularia (leaf spot/blast); modern hybrids carry resistance. Grain harvest occurs ≈80-100 days after planting when seed moisture reaches 18-22%; grain is dried to 12-13% for storage. The whole grain is gluten-free, naturally high in iron, zinc, and protein (~11-12%), and is the basis of biofortified varieties developed by ICRISAT and HarvestPlus. Forage and dual-purpose hybrids are widely used in the US Southeast and Great Plains for summer grazing, hay, and silage; pearl millet does not accumulate the prussic acid that sorghum and sudangrass do, making it safer for ruminants.

Growing Season

Plant: Late spring through early summer once soil temperatures exceed 65-70°F – Mid-summer (allow ≈90-110 days to maturity before first frost)
Harvest: Late summer to early fall (≈80-100 days after planting at 18-22% seed moisture) – Mid fall
Frost-free days: 90+
GDD (base 50°F): 1,600 – 2,000

Yield

Typical yield: 70 bu/acre (grain; ≈56 lb/bu)
Productive lifespan: 1 years
Years to full prod.: 1

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