When to Plant Watercress in Zone 3
In USDA zone 3a, plant outdoors May 16 to July 5, and expect your first harvest around July 5. (3a shown here — see 3a and 3b dates separately below.)
Watercress planting calendar for USDA Zone 3a
Average last spring frost
May 30
Average first fall frost
September 10
Direct sow
May 16
Projected first harvest
Jul 5
Watercress is ready to harvest in about 50 days, needing roughly 103 frost-free days in zone 3a.
Watercress planting calendar for USDA Zone 3b
Average last spring frost
May 20
Average first fall frost
September 15
Direct sow
May 6
Projected first harvest
Jun 25
Watercress is ready to harvest in about 50 days, needing roughly 118 frost-free days in zone 3b.
Not sure whether you're in 3a or 3b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
1 variety of watercress in the HomeSown library. Tap any for its full grow guide.
Common problems with watercress
What to watch for, with identification and treatment for each
🌱 Grow watercress with a calendar built for your exact yard
HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.
Start your free garden →