Growing sweet corn in zone 10
A single long row gives you half-filled ears; plant at least a 4×4 block so pollen finds the silks. Succession-sow every 2 weeks or plant early/mid/late varieties together for a month of harvest.
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 sweet corn in zone 10?
Direct sow 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.
Can I direct sow sweet corn in zone 10?
Yes — direct sow Feb 1 – Feb 8. This crop prefers direct sowing; its roots dislike transplanting.