Mint · Phnom Penh, Phnom Penh, Cambodia
When to plant mint in Phnom Penh
Main outdoor window
not outdoors here
The window this page is built around.
Timed from last spring frost
no spring frost
In Phnom Penh, on your chosen risk.
First autumn frost
no autumn frost
The far end of the outdoor season.
The average last frost. Half of all years are later than this.
Step by step in Phnom Penh
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.
Mint through the year
Against the frost risk in Phnom Penh
Why these dates
Establish from a division rather than seed - seed-grown mint is variable and often poorly flavoured. Cut back hard midsummer for fresh growth.
Dies back to the root in winter and returns reliably from -25C. Frost is irrelevant to an established plant.
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. Mint are timed for direct sowing 4 weeks before it, and this page simply resolves those offsets against the frost date computed for Phnom Penh.
Growing mint in Phnom Penh
How much frost will mint tolerate?
Dies back to the root in winter and returns reliably from -25C. Frost is irrelevant to an established plant.