Growing Water Parsley in Zone 9b

Zone 9b has warm winters and an extended growing season — excellent for heat-loving crops like Water Parsley. Last frost: Mar 10. First frost: Nov 15.

Planting Calendar

Indoor

Outdoor

Harvest

Jan 13Nov 15

Season: Mar 10 – Nov 15 (250 days)

Zone9b

Last FrostMar 10

First FrostNov 15

Season Length250 days

Days to Harvest75

Sunfull-to-part

Frost ToleranceLight

Spacing4/sqft (6" apart)

When to Plant Water Parsley in Zone 9b

Start Seeds Indoors: Jan 13

Start Water Parsley seeds indoors around Jan 13 (8 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 14–28 days.

Transplant Outdoors: Feb 24

Transplant Water Parsley seedlings outdoors after Feb 24. Wait until soil temperature reaches 50°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Apr 15

First harvest approximately Apr 15 (~50 days from transplant). Continue harvesting until first frost (Nov 15).

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

Frequently Asked Questions

When should I plant Water Parsley in Zone 9b?

Start Water Parsley seeds indoors around Jan 13. Transplant outdoors after Feb 24. Expect first harvest around Apr 15.

What is the last frost date for Zone 9b?

The average last spring frost date for Zone 9b is Mar 10. The first fall frost averages Nov 15, giving a 250-day growing season.

Can I grow Water Parsley in Zone 9b?

Yes. Water Parsley needs 75 days to harvest. Zone 9b has a 250-day growing season, which is sufficient.

What is the best month to plant Water Parsley in Zone 9b?

The best time to start Water Parsley in Zone 9b is Jan. Begin seeds indoors around Jan 13, then transplant outdoors after the last frost date of Mar 10.

What companion plants grow well with Water Parsley?

Good companion plants for Water Parsley include Watercress.

How long does Water Parsley take to harvest?

Water Parsley takes approximately 75 days from planting to harvest. In Zone 9b, expect your first harvest around Apr 15.

Plan Your Water Parsley Garden

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

Start Free Water Parsley Growing Guide