Kohlrabi · Osorno, Los Lagos Region, Chile
When to plant kohlrabi in Osorno
Main outdoor window
28 Aug - 11 Sep
The window this page is built around.
Timed from last spring frost
11 September
In Osorno, on your chosen risk.
Ready to pick
22 Oct - 11 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 Osorno
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
7-21 Aug
Five weeks before your last frost, under cover or on a windowsill.
Sow for autumn
14 Feb - 7 Mar
Counting back 89 days from your first frost so the crop matures in time.
Sow direct
28 Aug - 11 Sep
Two weeks before your last frost.
Plant out
25 Sep - 9 Oct
Two weeks after your last frost.
Harvest
22 Oct - 11 Nov
Kohlrabi through the year
Against the frost risk in Osorno
Why these dates
Sow direct two weeks before the last frost and every three weeks after, avoiding high summer. A late-summer sowing crops into autumn.
Tolerates about -6C. The exposed stem is more vulnerable than a buried root would be, so a hard frost damages it directly.
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. Kohlrabi are timed from 5 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 Osorno.
The median frost-free season here is 266 days, against 55 to 75 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Also in Osorno
Other vegetables to time
Growing kohlrabi in Osorno
When should I plant kohlrabi in Osorno?
Aim for 28 Aug - 11 Sep in an average year. If you would rather not gamble on the weather, wait until 23 Sep - 7 Oct - by then frost has finished in nine years out of ten.
When will kohlrabi be ready to harvest in Osorno?
Expect to start picking around 22 Oct - 11 Nov, based on 55 to 75 days to maturity from the planting date calculated for this location.
How much frost will kohlrabi tolerate?
Tolerates about -6C. The exposed stem is more vulnerable than a buried root would be, so a hard frost damages it directly.