Cauliflower · Perm, Perm Krai, Russia
When to plant cauliflowers in Perm
Main outdoor window
3-24 May
The window this page is built around.
Timed from last spring frost
17 May
In Perm, on your chosen risk.
Ready to pick
7 Jul - 6 Aug
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 Perm
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 Mar - 19 Apr
Seven weeks before your last frost, under cover or on a windowsill.
Plant out
3-24 May
Two weeks before your last frost.
Harvest
7 Jul - 6 Aug
Cauliflowers through the year
Against the frost risk in Perm
Why these dates
Steady moisture and steady temperature matter more than the exact sowing week. Autumn maturity is easier to achieve than spring in most climates.
Tolerates light frost but the curd itself is damaged below about -3C. Fold leaves over developing heads when frost threatens.
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. Cauliflowers are timed from 7 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 Perm.
The median frost-free season here is 135 days, against 65 to 95 days to maturity for this crop counted from planting out. That margin is what decides whether a late sowing is worth attempting.
Also in Perm
Other vegetables to time
Growing cauliflowers in Perm
When should I plant cauliflowers in Perm?
Aim for 3-24 May in an average year. If you would rather not gamble on the weather, wait until 16 May - 6 Jun - by then frost has finished in nine years out of ten.
When will cauliflowers be ready to harvest in Perm?
Expect to start picking around 7 Jul - 6 Aug, based on 65 to 95 days to maturity from the planting date calculated for this location.
How much frost will cauliflowers tolerate?
Tolerates light frost but the curd itself is damaged below about -3C. Fold leaves over developing heads when frost threatens.