Oats
garden

Oats

Overview

A versatile cereal grain that doubles as one of the most beneficial cover crops for garden soil. Oats grow quickly, suppress weeds, scavenge excess nutrients, and create loose, friable soil structure when their root systems decompose. They winter-kill in cold climates, leaving behind a ready-made mulch layer for spring planting.

Companion Planting & Soil

Good Companions

Crimson cloverAustrian winter peaHairy vetch
Soil pH5.5 — 7
Soil TypeAdaptable; performs well in most well-drained soils

Planting Calendar

When to sow, transplant, and harvest by growing zone.

ZoneActionMonthsNotes
Cold (1-2) Direct Sow Apr — May Direct sow in spring; fast-growing; winterkills at 20°F — creates free dead mulch
Cold (1-2) Direct Sow Jul — Aug Late summer sow; winterkills to leave no-till mulch layer
Cold (1-2) Harvest May — Jun Spring sown: mow at boot stage for mulch; fall sown: winterkills — no action needed
Cool (3-4) Direct Sow Mar — May Sow in spring for quick biomass; or late summer for winterkill mulch
Cool (3-4) Direct Sow Aug — Sep Fall sow; winterkills in most years — easy no-herbicide termination
Cool (3-4) Harvest May — Jun Mow or let winterkill; excellent nurse crop for establishing clover
Moderate (5-7) Direct Sow Sep — Oct Fall sow; may or may not winterkill depending on winter severity
Moderate (5-7) Harvest Mar — Apr Mow at heading if still living; good weed suppression
Warm (8-9) Direct Sow Sep — Nov Fall sow; grows through mild winter; mow in spring to terminate
Warm (8-9) Harvest Feb — Mar Terminate in late winter before spring planting
Hot (10+) Direct Sow Oct — Dec Fall/winter sow; grows through winter
Hot (10+) Harvest Jan — Feb Terminate in midwinter before seed set

Uses

Culinary

  • Rolled or steel-cut for porridge and granola
  • Ground into flour for baking

Medicinal

  • Beta-glucan fiber lowers cholesterol (clinically proven)
  • Soothing oat baths for skin irritation and eczema
  • Nervine — milky oat tincture calms the nervous system

Other Uses

  • Fast-growing cover crop and green manure
  • Nurse crop to establish slower-growing species
  • Straw used as garden mulch and animal bedding