Watercress Growing Guide
Growing Watercress is easier than you think. This guide walks you through everything you need — from planting your first seed to harvesting.
At a Glance
Difficulty
Easy
Category
Vegetable
Sun Exposure
Partial Shade
Frost Tolerance
Frost Hardy
Cold Hardiness
Survives to -7°C
Plant Family
Brassicaceae
Growing Season
Cool Season
Plant Lifecycle
Perennial
Also grows well as
How to Start It
★ Recommended for beginners
Stand a few fresh sprigs in water until roots appear (days), then plant in a pot of rich soil kept standing in a tray of clean water. It spreads quickly.
A peppery green that needs constant moisture — it naturally grows in flowing water but thrives in any pot that sits in a saucer of water, or a boggy corner. Easiest of all from cuttings. Use clean water; avoid wild streams (risk of liver fluke).
When To Start
First Chance to Plant
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Last Chance to Plant
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When should you plant Watercress?
Your planting dates depend on your local climate. Sign up and add your location to unlock personalized dates.
Your Watercress Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
The Journey Ahead
Watercress's Lifecycle
Seedling
Mature Plant
Seed Production
Step 1
Prepare Your Space
0.2 cm
Seeding Depth
15 cm
Plant Spacing
20 cm
Row Spacing
9
Plants / Sq Ft
Vertical Growing
No.
Succession Planting
No.
Good Companions
Bad Companions
Step 2
Planting & Sprouting
Expect sprouts in 7–14 days
Growing Tips
- 1The one rule with watercress is never let it dry out — stand the pot in a water tray and change the water often to keep it fresh.
- 2Part shade keeps it tender; full sun in summer makes it bolt.
Seedling Phase
Step 3
Growth & Maturity
~50
Days to Maturity
20 cm
Mature Height
30 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
Harvest Window
120 days
When to Pick
Snip leafy tips anytime once growing; keep it cut to stay tender
How to Harvest
- 1Snip the leafy tips with scissors as you need them — frequent cutting keeps it bushy and stops it flowering.
- 2Rinse before eating.
Step 5
Saving Seeds
Seed Production
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