Lettuce · Zapopan, Jalisco, Mexico
When to plant lettuce in Zapopan
Main outdoor window
22 Sep - 13 Oct
The window this page is built around.
Timed from last spring frost
no spring frost
In Zapopan, on your chosen risk.
First autumn frost
26 December
The far end of the outdoor season.
The average last frost. Half of all years are later than this.
Step by step in Zapopan
Each window is a range, not a single day. Earlier in the range buys you a longer season; later in it buys you a safer one.
Sow for autumn
22 Sep - 13 Oct
Counting back 74 days from your first frost so the crop matures in time.
Lettuce through the year
Against the frost risk in Zapopan
Why these dates
Sow every ten days from six weeks before last frost. Pause through midsummer, then resume for an autumn crop - late sowings are often the best of the year.
Tolerates -3C and a light frost actually sweetens the leaf. Seed germinates poorly above 25C, which is the more common problem.
Seed packets and extension guides express timing as weeks either side of the last spring frost, because that is the only reference point that travels. Lettuce are timed from 6 weeks before that frost for an indoor start, with planting out 2 weeks before it, and this page simply resolves those offsets against the frost date computed for Zapopan.
Also in Zapopan
Other vegetables to time
Growing lettuce in Zapopan
How much frost will lettuce tolerate?
Tolerates -3C and a light frost actually sweetens the leaf. Seed germinates poorly above 25C, which is the more common problem.