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Grass · Very easy

How to Grow Annual Ryegrass

Lolium multiflorum

Your complete guide to growing Annual Ryegrass.

☀SunFull sun to partial shade (4-6+ hours)
💧Water1-1.5 inches per week, needs consistent moisture
📅Harvest50-70 days
🗺Zones4–9
📏Height2-6 inches
Annual Ryegrass📷 Wikimedia Commons

When to Plant Annual Ryegrass

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 4 — April – June —
Zone 5 — April – June —
Zone 6 — April – June —
Zone 7 — March – May —
Zone 8 — March – May —
Zone 9 — February – April —

Companion Plants for Annual Ryegrass

✓ Good companions

Alfalfa

Nitrogen fixation benefits ryegrass, creates diverse forage mix

Chicory

Deep taproot brings nutrients to surface, extends grazing season

Crimson Clover

Cool season legume that complements ryegrass growing period

Plantain

Provides minerals and improves soil structure with deep roots

Red Clover

Adds nitrogen to soil through root nodules, enhances pasture quality

Timothy Grass

Compatible growth habits, extends hay cutting season

Vetch

Nitrogen-fixing vine that doesn't compete heavily with grass

White Clover

Fixes nitrogen in soil, improves grass growth and reduces need for fertilization

✗ Keep away from

Bermuda Grass

Aggressive warm-season grass that can overtake cool-season ryegrass

Johnson Grass

Aggressive competitor that can outcompete and suppress ryegrass establishment

Tall Fescue

Can be allelopathic to ryegrass seedlings and competes for resources

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.