Planting windows for Harlingen Rio Grande Airport
Computed from Harlingen Rio Grande Airport's own frost dates. Click any crop for the full zone-9 growing guide — varieties, spacing, fall plantings, and more.
| Crop | Start seeds indoors | Transplant | Direct sow |
|---|---|---|---|
| 🍅 Tomatoes | Nov 13 – Nov 27 | Jan 15 – Jan 22 | — |
| 🫑 Peppers | Oct 30 – Nov 13 | Jan 22 – Jan 29 | — |
| 🥬 Lettuce | Nov 27 – Dec 11 | Dec 11 – Dec 25 | Dec 11 – Jan 8 |
| 🫛 Peas | — | — | Nov 27 – Dec 11 |
| 🥕 Carrots | — | — | Dec 18 – Jan 8 |
| 🥦 Broccoli | Nov 20 – Dec 4 | Dec 18 – Jan 1 | — |
| 🥬 Kale | Nov 27 – Dec 11 | Dec 11 – Dec 25 | Dec 11 – Dec 25 |
| 🥒 Cucumbers | Dec 11 – Dec 18 | Jan 15 – Jan 22 | Jan 15 – Jan 22 |
| 🥒 Zucchini | Dec 11 – Dec 18 | Jan 15 – Jan 22 | Jan 15 – Jan 22 |
| 🫘 Green Beans (Bush) | — | — | Jan 15 – Jan 22 |
| 🌽 Sweet Corn | — | — | Jan 15 – Jan 22 |
| 🌿 Basil | Nov 27 – Dec 11 | Jan 15 – Jan 22 | Jan 22 – Jan 29 |
| 🧄 Garlic | — | — | Fall: Nov 17 – Dec 15 |
Want this for all 50 crops, or as a printable seed-shelf schedule? Use the planting calendar and the seed starting scheduler — both can use Harlingen Rio Grande Airport's dates automatically after a lookup.
Reading the season in Harlingen Rio Grande Airport
With roughly 355 frost-free days, Harlingen Rio Grande Airport gardens fit long-season crops — melons, winter squash, sweet potatoes — with room left for spring and fall rounds of greens and roots. The first frost around Dec 29 is late enough that fall planting is a full second season, not an afterthought.