Chervil · Angarsk, Irkutsk Oblast, Russia
When to plant chervil in Angarsk
Main outdoor window
22 Apr - 6 May
The window this page is built around.
Timed from last spring frost
20 May
In Angarsk, on your chosen risk.
Ready to pick
21 Jun - 11 Jul
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 Angarsk
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.
Sow direct
22 Apr - 6 May
Four weeks before your last frost.
Harvest
21 Jun - 11 Jul
Chervil through the year
Against the frost risk in Angarsk
Why these dates
Sow direct in succession from four weeks before the last frost, then stop for high summer and resume in late summer. An autumn sowing under cover picks through winter.
Tolerates about -8C and grows through mild winters in a cold frame, which is when it is at its best.
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. Chervil are timed for direct sowing 4 weeks before it, and this page simply resolves those offsets against the frost date computed for Angarsk.
The median frost-free season here is 123 days, against 60 to 80 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Growing chervil in Angarsk
When should I plant chervil in Angarsk?
Aim for 22 Apr - 6 May in an average year. If you would rather not gamble on the weather, wait until 29 Apr - 13 May - by then frost has finished in nine years out of ten.
When will chervil be ready to harvest in Angarsk?
Expect to start picking around 21 Jun - 11 Jul, based on 60 to 80 days to maturity from the planting date calculated for this location.
How much frost will chervil tolerate?
Tolerates about -8C and grows through mild winters in a cold frame, which is when it is at its best.