Plano, TX · zone 8a · ~255 frost-free days
When to plant in Plano: frost dates and zone 8a.
In Plano, the typical last spring frost lands around Mar 9 and the first fall frost around Nov 19, giving you about 255 frost-free days. Cool-season crops go out before the last frost; warm-season crops wait until after it.
The 2026 windows
Sow dates for Plano, keyed to your frost.
| Crop | Start indoors | Spring sow / set out | Fall sow |
|---|---|---|---|
| Tomato, slicing | Feb 2 to Apr 4 | Mar 16 to May 16 | — |
| Lettuce, leaf | — | Jan 30 to Mar 16 | Sep 5 to Nov 4 |
| Carrot | — | Jan 30 to Mar 4 | Aug 24 to Sep 19 |
| Bush Bean | — | Mar 9 to Apr 29 | Aug 5 to Sep 7 |
| Cucumber, slicing | — | Mar 16 to Jun 15 | Jul 19 to Aug 19 |
| Pepper, bell | Feb 11 to Apr 4 | Mar 25 to May 16 | — |
| Kale | Dec 19 to Jan 16 | Jan 30 to Feb 27 | Aug 19 to Oct 4 |
| Spinach | — | Jan 16 to Feb 27 | Sep 5 to Oct 24 |
Plano sits in Zone 8a, but two gardens in the same city can be a week or two apart. The planner works from your ZIP code's frost dates, not the zone, so the dates land right for your block, not the metro average.
Build your Plano garden plan.
Tell the free planner what you want to eat and who you're feeding. It returns plant counts, spacing, and frost-safe sow dates for ZIP 75074 in about 60 seconds.
Plano planting questions
What planting zone is Plano, TX?+
Plano is in USDA hardiness zone 8a. Growing zone, gardening zone, and planting zone all mean the same thing: the USDA number, 8a here. It tells you what survives winter, not when to plant. Frost dates set your planting time, and the free planner uses your exact ZIP code's frost dates, which can differ by weeks across one metro.
When is the last frost date in Plano?+
The typical last spring frost in Plano, TX is around Mar 9. That is an average from local history, not a guarantee, so tender crops like tomatoes and peppers are safer with a week of buffer after it.
When is the first frost date in Plano?+
The typical first fall frost in Plano, TX arrives around Nov 19, closing a growing season of roughly 255 frost-free days. Count backward from it to find the last date a fall crop can still finish.
What can I plant now in Plano?+
It depends on the date. Cool-season crops like lettuce, kale, and spinach go out weeks before the last frost; warm-season crops like tomatoes and peppers wait until after Mar 9. The table above shows each crop's window; the free planner turns your ZIP into an exact, dated calendar.