Lettuce · Gustavo Adolfo Madero, Mexico City, Mexico

When to plant lettuce in Gustavo Adolfo Madero

Main outdoor window

19 Jan - 2 Feb

The window this page is built around.

Timed from last spring frost

9 February

In Gustavo Adolfo Madero, on your chosen risk.

Ready to pick

5-20 Mar

If you plant at the start of the window.

The average last frost. Half of all years are later than this.

Cautious Balanced Bold

Step by step in Gustavo Adolfo Madero

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.

Start indoors

29 Dec - 12 Jan

Six weeks before your last frost, under cover or on a windowsill.

Sow for autumn

14 Aug - 4 Sep

Counting back 74 days from your first frost so the crop matures in time.

Sow direct

19 Jan - 2 Feb

Three weeks before your last frost.

Plant out

26 Jan - 9 Feb

Two weeks before your last frost.

Harvest

5-20 Mar

Sow in succession. A single sowing gives you a single glut. Sow a short row every 10 days through the window above and you get a steady supply instead.

Frost tolerance

Half-hardy

Damaged below

-3°C (26.6°F)

Days to maturity

45–60

Min soil temp

4.5°C (40.1°F)

Spacing

25 cm

Sowing depth

6 mm (0.2 in)

Sun

Partial

Lettuce through the year

Against the frost risk in Gustavo Adolfo Madero

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Lettuce

Frost risk Start indoors Autumn sowing Sow direct Plant out Harvest Today

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 Gustavo Adolfo Madero.

The median frost-free season here is 281 days, against 45 to 60 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.

See every crop timed for Gustavo Adolfo Madero →

Nearby

Lettuce in places close by

Mexico City 7 km Ecatepec de Morelos 13 km Ciudad Nezahualcoyotl 14 km Iztapalapa 16 km Puebla 107 km Santiago de Querétaro 181 km

Also in Gustavo Adolfo Madero

Other vegetables to time

Tomatoes tender Potatoes half hardy Courgettes tender Sweet peppers tender Carrots hardy Cucumbers tender Green beans tender Peas hardy Garlic very hardy Chilli peppers tender Sweetcorn tender

Growing lettuce in Gustavo Adolfo Madero

When should I plant lettuce in Gustavo Adolfo Madero?

Aim for 19 Jan - 2 Feb in an average year. If you would rather not gamble on the weather, wait until 13-27 Feb - by then frost has finished in nine years out of ten.

When will lettuce be ready to harvest in Gustavo Adolfo Madero?

Expect to start picking around 5-20 Mar, based on 45 to 60 days to maturity from the planting date calculated for this location.

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.