Pumpkin · Penza, Penza Oblast, Russia
When to plant pumpkins in Penza
Main outdoor window
16-30 May
The window this page is built around.
Timed from last spring frost
2 May
In Penza, on your chosen risk.
Ready to pick
14 Aug - 13 Sep
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 Penza
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
11-25 Apr
Three weeks before your last frost, under cover or on a windowsill.
Sow direct
16-30 May
Two weeks after your last frost.
Plant out
16-30 May
Two weeks after your last frost.
Harvest
14 Aug - 13 Sep
Pumpkins through the year
Against the frost risk in Penza
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 Penza.
The median frost-free season here is 155 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 Penza
Other vegetables to time
Growing pumpkins in Penza
When should I plant pumpkins in Penza?
Aim for 16-30 May in an average year. If you would rather not gamble on the weather, wait until 6-20 Jun - by then frost has finished in nine years out of ten.
When will pumpkins be ready to harvest in Penza?
Expect to start picking around 14 Aug - 13 Sep, 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.