When to Plant Radish in Zone 9
Raphanus sativus
Last updated: Apr 25, 2026 · Sources: USDA, NOAA, Cooperative ExtensionZone 9 Planting Schedule
Direct Sow
Feb 28
Directly in garden bed
First Harvest
Mar 27
22–35 days after planting
Season Ends
May 9
Before first frost (Nov 25)
Quick Facts
Sunlight
☀️ Full Sun
Water Needs
💧💧 Moderate
Spacing
3 inches apart
Planting Depth
0.5 inch
Min Soil Temp
40°F
Germination
3–7 days
Days to Maturity
22–35 days
Frost Tolerance
Moderate frost tolerance
Soil pH
6.0–7.0
Difficulty
Easy
Recommended for Zone 9
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Hyssop
Radish Schedule — All Zones
| Zone | Start Indoors | Transplant | Direct Sow | Harvest Start | Harvest End |
|---|---|---|---|---|---|
| Zone 2 | — | — | May 25 | Jun 21 | Aug 3 |
| Zone 3 | — | — | May 15 | Jun 11 | Jul 24 |
| Zone 4 | — | — | May 10 | Jun 6 | Jul 19 |
| Zone 5 | — | — | Apr 30 | May 27 | Jul 9 |
| Zone 6 | — | — | Apr 15 | May 12 | Jun 24 |
| Zone 7 | — | — | Apr 5 | May 2 | Jun 14 |
| Zone 8 | — | — | Mar 20 | Apr 16 | May 29 |
| Zone 9 | — | — | Feb 28 | Mar 27 | May 9 |
| Zone 10 | — | — | Feb 10 | Mar 9 | Apr 21 |
| Zone 11 | — | — | Jan 15 | Feb 11 | Mar 26 |
📚 Data Sources
Frost dates: NOAA Climate Normals 1991–2020, National Centers for Environmental Information.Hardiness zones: USDA Plant Hardiness Zone Map, Agricultural Research Service.
Growing requirements: Cooperative Extension Services — NC State, Penn State, University of Florida IFAS.
Companion planting: Cornell University Cooperative Extension.
Data compiled from public agricultural sources. Always verify with your local extension office for micro-climate adjustments.