Growing tomatoes in zone 10
Wait until nights stay above 50°F — a cold, early transplant ends up behind a later one. Bury the stem to the first leaves for a deeper root system, and stake or cage at planting time, not after.
Zone 10 covers south Florida, coastal Southern California, low desert — frost is rare — the calendar flips, with the main garden running fall through spring. Zone dates are medians: frost timing varies within a zone with elevation and terrain, so treat these windows as a solid default and refine them with your own city’s dates below.
Make it local
These windows use zone 10's typical frost dates (last frost ~Jan 25, first frost ~Dec 20). For windows computed from your frost dates, run the ZIP code frost lookup and open the planting calendar — it remembers your city. The seed starting scheduler turns the whole seed rack into one printable, date-sorted list.
Frequently asked questions
When do I plant tomatoes in zone 10?
Transplant Feb 1 – Feb 8, counted from zone 10's typical last frost around Jan 25. It has no frost tolerance — a late frost after planting means covering it or replanting.
When should I start seeds indoors for tomatoes in zone 10?
Sow indoors Nov 30 – Dec 14 — that's 8 to 6 weeks before the typical Jan 25 last frost, giving sturdy transplants exactly when the garden is ready for them.
Can I direct sow tomatoes in zone 10?
Not usefully in zone 10 — tomatoes needs more growing time than direct sowing allows, which is why it's raised from transplants started indoors Nov 30 – Dec 14.