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🥬 Growing Lettuce, Black Seeded Simpson in Zone 9a
Zone 9a has warm winters and an extended growing season — excellent for heat-loving crops like Lettuce, Black Seeded Simpson. Last frost: Mar 20. First frost: Nov 12.
Planting Calendar
Season: Mar 20 – Nov 12 (237 days) · Succession: plant every 2 weeks (up to 13x)
When to Plant Lettuce, Black Seeded Simpson in Zone 9a
Start Seeds Indoors: Feb 6
Start Lettuce, Black Seeded Simpson seeds indoors around Feb 6 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 4–10 days.
Transplant Outdoors: Feb 27
Transplant Lettuce, Black Seeded Simpson seedlings outdoors after Feb 27. Wait until soil temperature reaches 40°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.
Harvest: Apr 3
First harvest approximately Apr 3 (~35 days from transplant). Continue harvesting until first frost (Nov 12).
Fall Planting: Sep 17
For a fall harvest, plant Lettuce, Black Seeded Simpson around Sep 17 (8 weeks before first frost).
Companion Planting
Lettuce, Black Seeded Simpson 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 Lettuce, Black Seeded Simpson in Zone 9a?
Start Lettuce, Black Seeded Simpson seeds indoors around Feb 6. Transplant outdoors after Feb 27. Expect first harvest around Apr 3.
What is the last frost date for Zone 9a?
The average last spring frost date for Zone 9a is Mar 20. The first fall frost averages Nov 12, giving a 237-day growing season.
Can I grow Lettuce, Black Seeded Simpson in Zone 9a?
Yes. Lettuce, Black Seeded Simpson needs 45 days to harvest. Zone 9a has a 237-day growing season, which is sufficient. You can plant up to 13 successions.
What is the best month to plant Lettuce, Black Seeded Simpson in Zone 9a?
The best time to start Lettuce, Black Seeded Simpson in Zone 9a is Feb. Begin seeds indoors around Feb 6, then transplant outdoors after the last frost date of Mar 20.
What companion plants grow well with Lettuce, Black Seeded Simpson?
Good companion plants for Lettuce, Black Seeded Simpson include Strawberries, Carrots, Beets, Cucumbers, Radishes.
How long does Lettuce, Black Seeded Simpson take to harvest?
Lettuce, Black Seeded Simpson takes approximately 45 days from planting to harvest. In Zone 9a, expect your first harvest around Apr 3.
Plan Your Lettuce, Black Seeded Simpson Garden
Track Lettuce, Black Seeded Simpson from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Lettuce, Black Seeded Simpson Growing Guide