Romanesco · Kirov, Kirov Oblast, Russia
When to plant romanesco in Kirov
Main outdoor window
11 May - 1 Jun
The window this page is built around.
Timed from last spring frost
18 May
In Kirov, on your chosen risk.
Ready to pick
1 Sep - 30 Nov
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 Kirov
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
6-27 Apr
Six weeks before your last frost, under cover or on a windowsill.
Transplant
11 May - 1 Jun
One week before your last frost.
Harvest
1 Sep - 30 Nov
Romanesco through the year
Against the frost risk in Kirov
Why these dates
Start indoors six weeks before the last frost and plant out around it, aiming for the head to form in the cooling weather of early autumn rather than in midsummer heat.
Hardy to about -5C. The curd itself is more tender than the leaves and browns after a hard frost, so cut once it is sized rather than leaving it out.
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. Romanesco are timed from 6 weeks before that frost for an indoor start, with planting out 1 weeks before it, and this page simply resolves those offsets against the frost date computed for Kirov.
The median frost-free season here is 135 days, against 75 to 100 days to maturity for this crop counted from planting out. That margin is what decides whether a late sowing is worth attempting.
Also in Kirov
Other vegetables to time
Growing romanesco in Kirov
When should I plant romanesco in Kirov?
Aim for 11 May - 1 Jun in an average year. If you would rather not gamble on the weather, wait until 19 May - 9 Jun - by then frost has finished in nine years out of ten.
When will romanesco be ready to harvest in Kirov?
Expect to start picking around 1 Sep - 30 Nov, based on 75 to 100 days to maturity from the planting date calculated for this location.
How much frost will romanesco tolerate?
Hardy to about -5C. The curd itself is more tender than the leaves and browns after a hard frost, so cut once it is sized rather than leaving it out.