Zone 9A — January
What to Plant in January in Zone 9A
January in Zone 9A:
33 crops to start indoors,
2 to plant or direct sow outside, and
0 entering harvest window.
Last frost averages February 15. Reference city: Phoenix, AZ.
33 Start Indoors
2 Plant Outside
0 Harvest
Start Indoors in January
| Plant | Type | Start Indoors | Transplant Outside | Harvest Window |
|---|---|---|---|---|
| Tatsoi | tatsoi | Jan 4 | Jan 18 | Feb 12 – Mar 4 |
| Alexandria Alpine Strawberry | strawberry | Jan 11 | Feb 22 | Jun 2 – Jun 22 |
| Black Beauty Zucchini | vegetable | Jan 29 | Feb 26 | Apr 12 – Apr 22 |
| Brilliant Celeriac | celeriac | Jan 4 | Feb 15 | Jun 5 – Jun 15 |
| Curly Parsley | herb | Jan 11 | Feb 15 | Apr 26 – May 6 |
| Daikon Radishes | daikon radish | Jan 25 | Feb 1 | Mar 18 – Mar 28 |
| Flat-Leaf Parsley | herb | Jan 11 | Feb 15 | Apr 26 – May 16 |
| Imperial Star Artichoke | artichoke | Jan 11 | Feb 15 | May 16 – May 26 |
| Mrs. Burns Lemon Basil | basil | Jan 25 | Feb 22 | Apr 23 – May 3 |
| Sweet Marjoram | marjoram | Jan 25 | Feb 22 | May 8 – May 23 |
| Anaheim Peppers | pepper | Jan 25 | Mar 1 | May 17 – May 25 |
| Bhut Jolokia Ghost Pepper | pepper | Jan 25 | Mar 1 | May 30 – Jun 29 |
| Big Jim Hatch Chile | pepper | Jan 25 | Mar 1 | May 10 – May 15 |
| Broccolini | vegetable | Jan 25 | Mar 1 | Apr 20 – May 10 |
| Brussels Sprouts | vegetable | Jan 25 | Mar 1 | May 25 – Jun 19 |
| California Wonder Peppers | pepper | Jan 25 | Mar 1 | May 12 – May 15 |
| Caribbean Red Scotch Bonnet Pepper | pepper | Jan 25 | Mar 1 | Jun 4 – Jun 29 |
| Cayenne Peppers | pepper | Jan 25 | Mar 1 | May 25 – Jun 4 |
| Corno di Toro Pepper | pepper | Jan 25 | Mar 1 | May 15 – May 20 |
| Fresno Peppers | pepper | Jan 25 | Mar 1 | May 15 – May 20 |
| Green Cabbage | vegetable | Jan 25 | Mar 1 | Apr 30 – Jun 9 |
| Habanero Pepper | pepper | Jan 25 | Mar 8 | Jun 6 – Jul 6 |
| Hungarian Hot Wax Pepper | pepper | Jan 25 | Mar 1 | May 5 – May 15 |
| Jalapeño Peppers | pepper | Jan 25 | Mar 1 | May 5 – May 15 |
| King Arthur Peppers | pepper | Jan 25 | Mar 1 | May 2 – May 8 |
| Pinkeye Purple Hull Pea | cowpea | Jan 4 | Mar 1 | Apr 25 – May 8 |
| Poblano Peppers | pepper | Jan 25 | Mar 1 | May 5 – May 15 |
| Red Cabbage | vegetable | Jan 25 | Mar 1 | May 10 – Jun 19 |
| Romanesco | vegetable | Jan 25 | Mar 1 | May 15 – Jun 9 |
| Serrano Peppers | pepper | Jan 25 | Mar 1 | May 10 – May 20 |
| Snow Crown Cauliflower | vegetable | Jan 25 | Mar 1 | Apr 20 – Apr 30 |
| Thai Hot Peppers | pepper | Jan 25 | Mar 1 | May 15 – May 25 |
| Waltham 29 Broccoli | vegetable | Jan 25 | Mar 1 | May 15 – May 30 |
Plant Outside in January
| Plant | Type | Action | Target Date | Harvest Window |
|---|---|---|---|---|
| Tatsoi | tatsoi | Transplant | Jan 18 | Feb 12 – Mar 4 |
| Texas 1015Y SuperSweet Onion | root | Transplant | Jan 18 | May 3 – May 13 |
Harvest in January
No crops entering harvest in January for Zone 9A.
Key Tasks for January in Zone 9A
- 1 Start 33 varieties indoors this month under grow lights or in a sunny south-facing window. Use a seed-starting mix and bottom heat (70–75°F) for best germination rates.
- 2 Harden off transplants before moving outdoors — set them outside in a sheltered spot for increasing hours over 7–10 days before planting in the ground.
- 3 Check soil moisture before watering — stick a finger 2 inches into the soil. Water only when the soil is dry at that depth. Consistent moisture is more important than frequency.
Get a Personalized January Calendar
SoilStack builds your exact planting schedule from your ZIP code — day-by-day tasks, weather prompts, and harvest tracking included.
Start Your Free Garden Calendar