Growing Water Spinach in Zone 12b
Zone 12b has a year-round growing season. Water Spinach can be planted almost any time with proper planning. Last frost: Jan 1. First frost: Dec 31.
Planting Calendar
Season: Jan 1 – Dec 31 (364 days) · Succession: plant every 2 weeks (up to 23x)
When to Plant Water Spinach in Zone 12b
Start Seeds Indoors: Nov 20
Start Water Spinach seeds indoors around Nov 20 (6 weeks before last frost). Optimal germination temperature: 60°F. Germinates in 6–14 days.
Transplant Outdoors: Dec 4
Transplant Water Spinach seedlings outdoors after Dec 4. Wait until soil temperature reaches 35°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.
Harvest: Jan 3
First harvest approximately Jan 3 (~30 days from planting). Continue harvesting until first frost (Dec 31). Water Spinach can overwinter in mild climates for continued harvest.
Fall Planting: Nov 19
For a fall harvest, plant Water Spinach around Nov 19 (6 weeks before first frost).
Water Spinach 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 13bFrequently Asked Questions
When should I plant Water Spinach in Zone 12b?
Start Water Spinach seeds indoors around Nov 20. Transplant outdoors after Dec 4. Expect first harvest around Jan 3.
What is the last frost date for Zone 12b?
The average last spring frost date for Zone 12b is Jan 1. The first fall frost averages Dec 31, giving a 364-day growing season.
Can I grow Water Spinach in Zone 12b?
Yes. Water Spinach needs 30 days to harvest. Zone 12b has a 364-day growing season, which is sufficient. You can plant up to 23 successions.
What is the best month to plant Water Spinach in Zone 12b?
The best time to start Water Spinach in Zone 12b is Nov. Begin seeds indoors around Nov 20, then transplant outdoors after the last frost date of Jan 1.
How long does Water Spinach take to harvest?
Water Spinach takes approximately 30 days from planting to harvest. In Zone 12b, expect your first harvest around Jan 3.
Plan Your Water Spinach Garden
Track Water Spinach from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Water Spinach Growing Guide