Safe to Plant

Shiso · Biên Hòa, Dong Nai, Vietnam

When to plant shiso in Biên Hòa

Main outdoor window

not outdoors here

The window this page is built around.

Timed from last spring frost

no spring frost

In Biên Hòa, 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 Biên Hòa

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.

Frost tolerance
Tender
Damaged below
0°C (32°F)
Days to maturity
70–90
Min soil temp
15°C (59°F)
Spacing
30 cm
Sowing depth
3 mm (0.1 in)
Sun
Full

Shiso through the year

Against the frost risk in Biên Hòa

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Frost risk Today

Why these dates

Killed by the first frost, like basil.

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. Shiso are timed from 6 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 Biên Hòa.

See every crop timed for Biên Hòa →

Growing shiso in Biên Hòa

How much frost will shiso tolerate?

Killed by the first frost, like basil.