Water Spinach Growing Guide
Convolvulaceae family
Days to Harvest30 days
SunlightPart Sun / Part Shade
Frost ToleranceHeavy
Spacing4/sqft (6" apart)
Germination6-14 days
HardinessVery Hardy
Germ. Temp60°F
Start Indoors6 weeks before last frost
Growth Stages
- Seedling
- Early Vegetative
- Late Vegetative / Harvest Ready
Planting Dates by Zone
| Zone | Start Indoors | Transplant | Direct Sow | Harvest |
|---|---|---|---|---|
| Zone 1a | Apr 13 | Apr 27 | Apr 13 | May 27 |
| Zone 1b | Apr 13 | Apr 27 | Apr 13 | May 27 |
| Zone 2a | Apr 3 | Apr 17 | Apr 3 | May 17 |
| Zone 2b | Apr 13 | Apr 27 | Apr 13 | May 27 |
| Zone 3a | Apr 10 | Apr 24 | Apr 10 | May 24 |
| Zone 3b | Apr 3 | Apr 17 | Apr 3 | May 17 |
| Zone 4a | Mar 24 | Apr 7 | Mar 24 | May 7 |
| Zone 4b | Mar 20 | Apr 3 | Mar 20 | May 3 |
| Zone 5a | Mar 17 | Mar 31 | Mar 17 | Apr 30 |
| Zone 5b | Mar 17 | Mar 31 | Mar 17 | Apr 30 |
| Zone 6a | Mar 17 | Mar 31 | Mar 17 | Apr 30 |
| Zone 6b | Mar 4 | Mar 18 | Mar 4 | Apr 17 |
| Zone 7a | Mar 4 | Mar 18 | Mar 4 | Apr 17 |
| Zone 7b | Feb 27 | Mar 13 | Feb 27 | Apr 12 |
| Zone 8a | Feb 22 | Mar 8 | Feb 22 | Apr 7 |
| Zone 8b | Feb 8 | Feb 22 | Feb 8 | Mar 24 |
| Zone 9a | Feb 6 | Feb 20 | Feb 6 | Mar 22 |
| Zone 9b | Jan 27 | Feb 10 | Jan 27 | Mar 12 |
| Zone 10a | Jan 9 | Jan 23 | Jan 9 | Feb 22 |
| Zone 10b | Dec 17 | Dec 31 | Dec 17 | Jan 30 |
| Zone 11a | Dec 17 | Dec 31 | Dec 17 | Jan 30 |
| Zone 11b | Dec 4 | Dec 18 | Dec 4 | Jan 17 |
| Zone 12a | Nov 20 | Dec 4 | Nov 20 | Jan 3 |
| Zone 12b | Nov 20 | Dec 4 | Nov 20 | Jan 3 |
| Zone 13a | Nov 20 | Dec 4 | Nov 20 | Jan 3 |
| Zone 13b | Nov 20 | Dec 4 | Nov 20 | Jan 3 |
Frequently Asked Questions
How long does it take to grow Water Spinach?
Water Spinach takes approximately 30 days from planting to harvest.
How much sun does Water Spinach need?
Water Spinach requires part sun / part shade.
How far apart should I plant Water Spinach?
Plant Water Spinach at 4/sqft (6" apart) using square foot gardening spacing.
Can Water Spinach survive frost?
Water Spinach is tolerant of heavy frost and can withstand freezing temperatures.
How long does Water Spinach take to germinate?
Water Spinach seeds germinate in 6-14 days at an optimal temperature of 60°F.
When should I start Water Spinach seeds indoors?
Start Water Spinach seeds indoors 6 weeks before your last frost date, then transplant -4 weeks after last frost.
Plan Your Water Spinach Garden
Track Water Spinach from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
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