Safe to Plant

Sunflower · Gorakhpur, Haryana, India

When to sow sunflowers in Gorakhpur

Main outdoor window

not outdoors here

The window this page is built around.

Timed from last spring frost

no spring frost

In Gorakhpur, 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 Gorakhpur

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 flowering
70–100
Min soil temp
12°C (53.6°F)
Spacing
30 cm
Sowing depth
25 mm (1 in)
Sun
Full

Sunflowers through the year

Against the frost risk in Gorakhpur

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

Frost risk Today

Why these dates

Sow a short row every two weeks until ten weeks before first frost for continuous cut flowers rather than one brief spectacle.

Seedlings are killed by frost. Once flowering, stems tolerate a light autumn frost without damage.

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. Sunflowers are timed for direct sowing 1 weeks after it, and this page simply resolves those offsets against the frost date computed for Gorakhpur.

See every crop timed for Gorakhpur →

Growing sunflowers in Gorakhpur

How much frost will sunflowers tolerate?

Seedlings are killed by frost. Once flowering, stems tolerate a light autumn frost without damage.