Pumpkin · Colina, Santiago Metropolitan, Chile
When to plant pumpkins in Colina
Main outdoor window
11-25 Oct
The window this page is built around.
Timed from last spring frost
27 September
In Colina, on your chosen risk.
Ready to pick
9 Jan - 8 Feb
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 Colina
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
6-20 Sep
Three weeks before your last frost, under cover or on a windowsill.
Sow direct
11-25 Oct
Two weeks after your last frost.
Plant out
11-25 Oct
Two weeks after your last frost.
Harvest
9 Jan - 8 Feb
Pumpkins through the year
Against the frost risk in Colina
Why these dates
If your frost-free season is shorter than 110 days, start indoors and choose a smaller cultivar. Giant pumpkins are a long-season crop, not a beginner one.
Foliage dies at the first frost, but mature fruit tolerates a light touch. Harvest before a hard frost or the flesh will not store.
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. Pumpkins are timed from 3 weeks before that frost for an indoor start, with planting out 2 weeks after it, and this page simply resolves those offsets against the frost date computed for Colina.
The median frost-free season here is 249 days, against 90 to 120 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Also in Colina
Other vegetables to time
Growing pumpkins in Colina
When should I plant pumpkins in Colina?
Aim for 11-25 Oct in an average year. If you would rather not gamble on the weather, wait until 2-16 Nov - by then frost has finished in nine years out of ten.
When will pumpkins be ready to harvest in Colina?
Expect to start picking around 9 Jan - 8 Feb, based on 90 to 120 days to maturity from the planting date calculated for this location.
How much frost will pumpkins tolerate?
Foliage dies at the first frost, but mature fruit tolerates a light touch. Harvest before a hard frost or the flesh will not store.