Vientiane, Vientiane Prefecture, Laos
Planting calendar for Vientiane
Vientiane has no dependable frost in the record, so the growing year here is bounded by heat and rain rather than by cold. The calendar below still times each crop, but treat the season as open.
Last spring frost
No frost
Frost has finished by this date in 1 year in 2.
First autumn frost
No frost
Bring tender crops in before this date.
Frost-free season
All year
No frost on record
The average last frost. Half of all years are later than this.
Nothing to sow this week
No sowing window is open in Vientiane right now under this posture. The growing year below shows when the next one starts.
Nothing to sow this week
No sowing window is open in Vientiane right now under this posture. The growing year below shows when the next one starts.
Nothing to sow this week
No sowing window is open in Vientiane right now under this posture. The growing year below shows when the next one starts.
The growing year in Vientiane
307 crops, timed to the dates above
Each bar is a window, not a deadline. Tap or hover a bar for its dates, or follow a crop name for the full timing and a harvest estimate. The blue wash is the measured weekly chance of frost across the whole record. There is also a printable one-page version of this calendar for the shed wall.
The climate behind these dates
Mean monthly temperature across the record. Months shown in blue average at least one air frost.
Questions about frost in Vientiane
What hardiness zone is Vientiane in?
Vientiane sits in USDA-equivalent zone 11b, based on a mean annual extreme minimum of 8°C (46.4°F). Perennials rated to this zone or lower should survive an average winter here.
Can I trust these dates exactly?
They are statistics, not forecasts. They describe what happened across 30 years of records at this location and say nothing about this particular spring. Frost is also intensely local: a low-lying or exposed garden can run a week behind the figures on this page.