Crop guide · The lovegrass family (a warm-season annual grass)

How to grow Teff

A fast-maturing Ethiopian grain grass that produces tiny, nutrient-dense seeds and tolerates both drought and waterlogged soils better than most cereals.

Eragrostis tef · also called tef, lovegrass

Full sun Intermediate Frost-tender
Sun
Full sun
Tolerates high heat well
Frost
Tender
Killed by any frost. Do not sow until all frost risk has passed and soil is reliably warm.
Spacing
6 in
15 cm between plants
To harvest
60–90 days
counted from sowing
Soil pH
6.0–7.0
slightly acidic to neutral
Timing

When to plant Teff

Windows are counted from the average date of your last spring frost.

Summer:up to 10–12 weeks before first fall frost in short-season climates.
Too late?Skip sowing if fewer than 70 days remain before your average first fall frost — the seed heads will not mature before cold arrives.
Background

Why grow Teff

Teff is naturally gluten-free and matures in as few as 60 days, making it viable even in short-season gardens. Its fine straw is also useful as mulch or animal fodder after harvest.

A little history. Native to the Horn of Africa and documented as a cultivated crop in Ethiopia for several thousand years; the seed is among the smallest of any cereal grain, with individual seeds roughly the size of a poppy seed.

The season, step by step

From planting to harvest

Sow outside

After last frost

Aim for 6 inches (15 cm) between plants once thinned. Press seed lightly onto a firm, moist seedbed — do not cover; seeds need light to germinate. Mist daily until sprouts appear. Seedlings emerge in 3–7 days.

Best soil temp 65–75 °F (18–24 °C) Minimum 60 °F (16 °C) Emerges in 3–7 days

Water and feed

All season

Water deeply once or twice a week; reduce once plants are knee-high and established. Water when the top inch of soil feels dry to the touch. Aim for about 1 inch per week including rain.

Side-dress (scatter fertilizer along the row and water in) once at tillering — when the plant begins sending up multiple shoots from the base. What to use: balanced organic fertilizer such as 5–5-5, or a light top-dressing of compost.

Harvest and store

60–90 days from sowing

It's ready when seed heads turn from green to tan or reddish-brown and feel dry to the touch; individual seeds release easily when you rub a head between your fingers. Cut stalks at the base with shears when 80–90% of heads are mature. Bundle loosely and hang upside down over a clean sheet or tarp for 1–2 weeks to finish drying and catch shed seeds.

Thresh dried heads by rubbing between your palms or beating into a bucket; winnow to remove chaff. Store dry grain in an airtight container in a cool, dark place for up to 1 year.

Companions

Good neighbours, bad neighbours

Plant it with

Cowpea

Cowpea banks nitrogen in its roots, and most of it becomes available only as those roots break down — so the payoff lands on next season's teff, which is a hungry grain. Its low spreading growth also covers ground the fine teff stems leave open.

Sweet Potato

Sweet potato vines run flat across the soil, holding moisture and crowding out the weeds that often outpace slow-starting teff seedlings. Keep the vines about a foot back from the sown block so they do not smother young shoots.

Sunflower

Sunflower heads draw in hoverflies, lacewings, and tiny parasitic wasps that hunt the aphids clustering on teff stems and seed heads. Set the sunflowers on the north edge of the patch so their height does not shade the grain.

Keep it away from

Sweet Corn

Sweet corn is a heavy feeder with a deeper, faster root system, and it will take water, nitrogen, and light from fine-stemmed teff. Its stalks also shelter the grass stem borers that tunnel into teff tillers, so give each crop its own bed.

Sorghum

Sorghum is another warm-season grass and often carries the same rusts and smuts as teff, so side-by-side plantings stack spore pressure in humid weather. Separate the two and keep them out of each other's rotation slot.

Wheat

Wheat shares the rust and smut diseases of grain grasses, and volunteer wheat can carry spores over to a nearby teff patch. Plant them apart and clear grass stubble and volunteers before sowing teff.

See Teff in the full companion chart →

Crop rotation

After this crop

Family rest

Give grasses and grains 2 years away from this spot before any of its relatives return.

Good next crops

The pea and bean family, the squash family or the tomato family thrive in this ground next season.

Teff is a heavy feeder that leaves behind fine straw but little fertility, so chop the stubble in and add compost. Keep grasses and grains out of this bed for 2 years, then follow with legumes such as cowpea or bean, cucurbits like squash, or nightshades like tomato and pepper.

Trouble to watch for

Pests and diseases

Pests

Aphids

Sign
Clusters of tiny soft-bodied insects on stems and developing seed heads; sticky residue on leaves.
Fix
Knock off with a firm water spray; apply insecticidal soap if colonies persist after two treatments.

Grasshoppers

Sign
Ragged, chewed leaf edges and missing sections of stem; insects visible in warm midday hours.
Fix
Hand-pick in small plots; use row cover early in the season before plants are too tall.

Stem borers (grass stem borers)

Sign
Dead central shoot (called deadheart) in young plants; small entry holes at the base of tillers.
Fix
Remove and destroy affected tillers promptly; avoid planting near other grass crops that harbor overwintering larvae.

Diseases

Head smut (loose smut of teff)

Sign
Seed heads replaced by masses of dark, powdery spores; affected heads produce no grain.
Prevent
Use certified disease-free seed; rotate teff out of the same bed each year; avoid overhead irrigation once heads emerge.

Leaf rust

Sign
Small orange-brown pustules on leaf surfaces, usually appearing in humid weather.
Prevent
Ensure good air circulation by not sowing too densely; remove heavily infected foliage promptly.

Damping off

Sign
Seedlings collapse at soil level shortly after emergence; base of stem appears water-soaked and pinched.
Prevent
Sow into well-drained soil only after it has warmed to 65F; avoid overwatering in the first two weeks.
FAQ

Common questions about Teff

When should I plant Teff?
Spring: after last frost, once soil reaches 65 °F (18 °C) — typically late spring to early summer. Summer: up to 10–12 weeks before first fall frost in short-season climates.
How long until Teff is ready to harvest?
60–90 days, counted from sowing. It's ready when seed heads turn from green to tan or reddish-brown and feel dry to the touch; individual seeds release easily when you rub a head between your fingers.
Can I grow Teff in a container?
Beds strongly preferred; containers require at least 8 inches of depth and become top-heavy at maturity. In containers: 5-gallon wide pot or trough, 8 inches deep minimum.
How often should I water Teff?
Water deeply once or twice a week; reduce once plants are knee-high and established. Water when the top inch of soil feels dry to the touch.
How should I store Teff after harvest?
Thresh dried heads by rubbing between your palms or beating into a bucket; winnow to remove chaff. Store dry grain in an airtight container in a cool, dark place for up to 1 year.

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