When should I plant Water Parsley in Zone 5a?

Start Water Parsley seeds indoors around Mar 3. Transplant outdoors after Apr 14. Expect first harvest around Jun 3.

What is the last frost date for Zone 5a?

The average last spring frost date for Zone 5a is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

Can I grow Water Parsley in Zone 5a?

Yes. Water Parsley needs 75 days to harvest. Zone 5a has a 163-day growing season, which is sufficient.

Growing Water Parsley in Zone 5a

Zone 5a has cold winters and a moderate growing season. Timing is key for Water Parsley in this zone. Last frost: Apr 28. First frost: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 3Oct 8

Season: Apr 28 – Oct 8 (163 days)

Zone5a

Last FrostApr 28

First FrostOct 8

Season Length163 days

Days to Harvest75

Sunfull-to-part

Frost ToleranceLight

Spacing4/sqft (6" apart)

When to Plant Water Parsley in Zone 5a

Start Seeds Indoors: Mar 3

Start Water Parsley seeds indoors around Mar 3 (8 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 14–28 days.

Transplant Outdoors: Apr 14

Transplant Water Parsley seedlings outdoors after Apr 14. Wait until soil temperature reaches 50°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Jun 3

First harvest approximately Jun 3 (~50 days from transplant). Continue harvesting until first frost (Oct 8).

Companion Planting

✅ Watercress

Water Parsley in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Plan Your Water Parsley Garden

Track Water Parsley from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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