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🌽 Growing Corn in Zone 10a
Zone 10a has a year-round growing season. Corn can be planted almost any time with proper planning. Last frost: Feb 20. First frost: Dec 1.
Planting Calendar
Season: Feb 20 – Dec 1 (284 days) · Succession: plant every 2 weeks (up to 14x)
When to Plant Corn in Zone 10a
Sow Seeds Outdoors: Feb 27
Direct sow Corn seeds outdoors around Feb 27. Soil temperature should be at least 60°F. Space at 4/sqft (6" apart).
Harvest: May 23
First harvest approximately May 23 (~85 days from planting). Continue harvesting until first frost (Dec 1).
Companion Planting
Corn 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 Corn in Zone 10a?
Direct sow Corn outdoors around Feb 27. Harvest around May 23.
What is the last frost date for Zone 10a?
The average last spring frost date for Zone 10a is Feb 20. The first fall frost averages Dec 1, giving a 284-day growing season.
Can I grow Corn in Zone 10a?
Yes. Corn needs 85 days to harvest. Zone 10a has a 284-day growing season, which is sufficient. You can plant up to 14 successions.
What is the best month to plant Corn in Zone 10a?
The best time to plant Corn in Zone 10a is around Feb 27, when soil temperatures are suitable and frost risk has passed.
What companion plants grow well with Corn?
Good companion plants for Corn include Beans, Squash, Cucumbers, Peas, Pumpkins. Avoid planting Corn near Tomatoes.
How long does Corn take to harvest?
Corn takes approximately 85 days from planting to harvest. In Zone 10a, expect your first harvest around May 23.
Plan Your Corn Garden
Track Corn from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Corn Growing Guide