Butterhead lettuce · Lahore, Punjab, Pakistan
When to plant butterhead lettuce in Lahore
Main outdoor window
6-20 Jan
The window this page is built around.
Timed from last spring frost
27 January
In Lahore, on your chosen risk.
Ready to pick
1 May - 31 Oct
If you plant at the start of the window.
The average last frost. Half of all years are later than this.
Step by step in Lahore
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
16-30 Dec
Six weeks before your last frost, under cover or on a windowsill.
Sow direct
6-20 Jan
Three weeks before your last frost.
Sow direct
13-27 Jan
Two weeks before your last frost.
Harvest
1 May - 31 Oct
Butterhead lettuce through the year
Against the frost risk in Lahore
Why these dates
Sow every ten days from six weeks before the last frost, then stop through the hottest weeks and resume eight weeks before the first autumn frost.
Damaged below about -3C. It is heat rather than cold that ends this crop, with seed germinating badly above 25C.
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. Butterhead 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 Lahore.
Nearby
Butterhead lettuce in places close by
Also in Lahore
Other vegetables to time
Growing butterhead lettuce in Lahore
When should I plant butterhead lettuce in Lahore?
Aim for 6-20 Jan in an average year. If you would rather not gamble on the weather, wait until 16-30 Jan - by then frost has finished in nine years out of ten.
When will butterhead lettuce be ready to harvest in Lahore?
Expect to start picking around 1 May - 31 Oct, based on 45 to 60 days to maturity from the planting date calculated for this location.
How much frost will butterhead lettuce tolerate?
Damaged below about -3C. It is heat rather than cold that ends this crop, with seed germinating badly above 25C.