When to Plant Kale in Zone 9
Brassica oleracea var. sabellica
Last updated: Apr 25, 2026 · Sources: USDA, NOAA, Cooperative ExtensionZone 9 Planting Schedule
Start Indoors
Jan 10
6–8 weeks before transplant
Transplant Out
Feb 28
After last frost (Feb 28)
First Harvest
Apr 26
50–75 days after planting
Season Ends
Jun 20
Before first frost (Nov 25)
Quick Facts
Sunlight
☀️ Full Sun
Water Needs
💧💧 Moderate
Spacing
18 inches apart
Planting Depth
0.5 inch
Min Soil Temp
40°F
Germination
5–10 days
Days to Maturity
50–75 days
Frost Tolerance
Heavy frost tolerance
Soil pH
6.0–7.5
Difficulty
Easy
Recommended for Zone 9
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Kale Schedule — All Zones
| Zone | Start Indoors | Transplant | Direct Sow | Harvest Start | Harvest End |
|---|---|---|---|---|---|
| Zone 2 | Apr 6 | May 25 | — | Jul 21 | Sep 2 |
| Zone 3 | Mar 27 | May 15 | — | Jul 11 | Sep 4 |
| Zone 4 | Mar 22 | May 10 | — | Jul 6 | Aug 30 |
| Zone 5 | Mar 12 | Apr 30 | — | Jun 26 | Aug 20 |
| Zone 6 | Feb 25 | Apr 15 | — | Jun 11 | Aug 5 |
| Zone 7 | Feb 15 | Apr 5 | — | Jun 1 | Jul 26 |
| Zone 8 | Jan 30 | Mar 20 | — | May 16 | Jul 10 |
| Zone 9 | Jan 10 | Feb 28 | — | Apr 26 | Jun 20 |
| Zone 10 | Dec 23 | Feb 10 | — | Apr 8 | Jun 2 |
| Zone 11 | Dec 17 | Jan 15 | Jan 15 | Mar 13 | May 7 |
📚 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.