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🥔 Growing Radish in Zone 9a
Zone 9a has warm winters and an extended growing season — excellent for heat-loving crops like Radish. Last frost: Mar 20. First frost: Nov 12.
Planting Calendar
Season: Mar 20 – Nov 12 (237 days) · Succession: plant every 2 weeks (up to 15x)
When to Plant Radish in Zone 9a
Sow Seeds Outdoors: Feb 13
Direct sow Radish seeds outdoors around Feb 13. Soil temperature should be at least 40°F. Space at 16/sqft (3" apart).
Harvest: Mar 10
First harvest approximately Mar 10 (~25 days from planting). Continue harvesting until first frost (Nov 12).
Fall Planting: Oct 8
For a fall harvest, plant Radish around Oct 8 (5 weeks before first frost).
Companion Planting
Radish 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 Radish in Zone 9a?
Direct sow Radish outdoors around Feb 13. Harvest around Mar 10.
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 Radish in Zone 9a?
Yes. Radish needs 25 days to harvest. Zone 9a has a 237-day growing season, which is sufficient. You can plant up to 15 successions.
What is the best month to plant Radish in Zone 9a?
The best time to plant Radish in Zone 9a is around Feb 13, when soil temperatures are suitable and frost risk has passed.
What companion plants grow well with Radish?
Good companion plants for Radish include Nasturtiums, Spinach, Lettuce, Peas. Avoid planting Radish near Hyssop.
How long does Radish take to harvest?
Radish takes approximately 25 days from planting to harvest. In Zone 9a, expect your first harvest around Mar 10.
Plan Your Radish Garden
Track Radish from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Radish Growing Guide