Safe to Plant

Tickseed · Pasarkemis, West Java, Indonesia

When to sow tickseeds in Pasarkemis

Main outdoor window

not outdoors here

The window this page is built around.

Timed from last spring frost

no spring frost

In Pasarkemis, 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 Pasarkemis

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
Hardy
Damaged below
-25°C (-13°F)
First crop
Year 1
Hardy to
Zone 4a–9a
Min soil temp
12°C (53.6°F)
Spacing
40 cm
Sowing depth
5 mm (0.2 in)
Sun
Full

Tickseeds through the year

Against the frost risk in Pasarkemis

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

Frost risk Today

Why these dates

Plant out or sow direct after the last frost. Shear the plant back by half when flowering slows in midsummer for a second flush that lasts to autumn. Deadheading is what keeps it going, so a neglected plant simply stops.

Hardy to -25C, though the large-flowered forms often behave as biennials in a wet winter and are worth resowing. Needs good drainage.

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. Tickseeds are timed from 8 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 Pasarkemis.

Pasarkemis sits in zone 13b, which is milder than this crop wants, and a winter that never really arrives is its own problem. The dates below still describe the right time of year; the open question is survival rather than timing.

Do not expect a crop in the first year. A plant set out now should give its first worthwhile pick around year 1, and will then produce every year after that, which is what makes the planting decision worth getting right the first time.

See every crop timed for Pasarkemis →

Growing tickseeds in Pasarkemis

How much frost will tickseeds tolerate?

Hardy to -25C, though the large-flowered forms often behave as biennials in a wet winter and are worth resowing. Needs good drainage.