Claytonia · Osorno, Los Lagos Region, Chile
When to plant claytonia in Osorno
Main outdoor window
20 Nov - 18 Dec
The window this page is built around.
Timed from last spring frost
11 September
In Osorno, on your chosen risk.
Ready to pick
1 May - 28 Oct
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.
Sow for overwintering
1-22 Mar
Counting back 74 days from your first frost so the crop matures in time.
Sow direct
20 Nov - 18 Dec
Ten weeks after your last frost.
Harvest
1 May - 28 Oct
Claytonia through the year
Against the frost risk in Osorno
Why these dates
Sow in late summer, roughly ten weeks after midsummer, for picking from late autumn onwards. It self-seeds freely, so one deliberate sowing often becomes a permanent patch.
Hardy to about -12C and unbothered by repeated freezing, which is why it was a winter green long before it was a salad leaf.
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. Claytonia are timed for direct sowing 10 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 45 to 60 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 claytonia in Osorno
When should I plant claytonia in Osorno?
Aim for 20 Nov - 18 Dec in an average year. If you would rather not gamble on the weather, wait until 16 Dec - 13 Jan - by then frost has finished in nine years out of ten.
When will claytonia be ready to harvest in Osorno?
Expect to start picking around 1 May - 28 Oct, based on 45 to 60 days to maturity from the planting date calculated for this location.
How much frost will claytonia tolerate?
Hardy to about -12C and unbothered by repeated freezing, which is why it was a winter green long before it was a salad leaf.