Thyme · Ya'an, Sichuan, China
When to plant thyme in Ya'an
Main outdoor window
22 Feb - 15 Mar
The window this page is built around.
Timed from last spring frost
22 February
In Ya'an, on your chosen risk.
Ready to pick
23 May - 22 Jun
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 Ya'an
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
28 Dec - 18 Jan
Eight weeks before your last frost, under cover or on a windowsill.
Plant
22 Feb - 15 Mar
Around your last frost.
Harvest
23 May - 22 Jun
Thyme through the year
Against the frost risk in Ya'an
Why these dates
Very slow from seed and best started indoors well ahead of the season, or simply bought as a plant.
Survives -18C. As with oregano, waterlogged winter soil is the real threat.
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. Thyme are timed from 8 weeks before that frost for an indoor start, with planting out 0 weeks after it, and this page simply resolves those offsets against the frost date computed for Ya'an.
Growing thyme in Ya'an
When should I plant thyme in Ya'an?
Aim for 22 Feb - 15 Mar in an average year. If you would rather not gamble on the weather, wait until 15 Mar - 5 Apr - by then frost has finished in nine years out of ten.
When will thyme be ready to harvest in Ya'an?
Expect to start picking around 23 May - 22 Jun, based on 90 to 120 days to maturity from the planting date calculated for this location.
How much frost will thyme tolerate?
Survives -18C. As with oregano, waterlogged winter soil is the real threat.