Zone 11B — August
What to Plant in August in Zone 11B
August in Zone 11B:
4 crops to start indoors,
0 to plant or direct sow outside, and
2 entering harvest window.
No freeze on record. Reference city: Key West, FL.
4 Start Indoors
0 Plant Outside
2 Harvest
Start Indoors in August
| Plant | Type | Start Indoors | Transplant Outside | Harvest Window |
|---|---|---|---|---|
| Green Onion | allium | Aug 9 | Oct 11 | Perennial — see plant page |
| King Richard Leek | allium | Aug 16 | Oct 18 | Jan 1 |
| Leek | allium | Aug 16 | Oct 18 | Jan 26, 2027 – Feb 25, 2027 |
| Viola and pansy edible flowers | flower | Aug 23 | Nov 1 | Dec 31, 2026 – Jan 10, 2027 |
Plant Outside in August
Nothing to plant or sow outside in August for Zone 11B.
Next window: October — 18 varieties, including Candy Onion, Caraway, Charleston Wakefield Cabbage.
Harvest in August
| Plant | Type | Planted / Sown | Harvest Window |
|---|---|---|---|
| Culinary Turmeric | root vegetable | Dec 6 | Aug 3, 2027 – Oct 2, 2027 |
| Ginger | root vegetable | Dec 6 | Aug 3, 2027 – Oct 2, 2027 |
Key Tasks for August in Zone 11B
- 1 Start 4 varieties indoors this month under grow lights or in a sunny south-facing window. Use a seed-starting mix and bottom heat (70–75°F) for best germination rates.
- 2 Apply 2–3 inches of mulch around heat-sensitive crops to retain moisture and keep root zones cooler. Water deeply and less frequently rather than shallow daily watering.
- 3 Check soil moisture before watering — stick a finger 2 inches into the soil. Water only when the soil is dry at that depth. Consistent moisture is more important than frequency.
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