my LocalPlanting

When to Plant Sunflower in Antler, North Dakota (58711)

Location

Antler, North Dakota

ZIP Code

58711

USDA Zone

3b

Last Frost

Wednesday, May 20, 2026

๐Ÿ“… Planting Calendar

Direct Sow Outdoors Wednesday, May 27, 2026

Pro Tip: Sow Sunflower directly outdoors 1 week after your last frost date โ€” it needs warm soil.

๐ŸŒฟ Plant Details

Scientific Name Helianthus annuus
Days to Maturity 80 days
Mature Height 36-96"
Spread 24"
Type Annual

โ˜€๏ธ Growing Requirements

โ˜€๏ธ

Sun

Full Sun (6-8 hours)

๐Ÿ’ง

Water

Low-Moderate (1 inch/week)

โ†”๏ธ

Spacing

18" apart

๐ŸŒฑ

Planting Depth

1" deep

Seeds typically germinate in 7-14 days

Ready to Plant Sunflower in Antler?

Get your seeds now so they're ready by Wednesday, May 27, 2026.

* Affiliate links โ€” we may earn a small commission at no extra cost to you.

๐Ÿค Good Companions

CornCucumberSquash

โš ๏ธ Avoid Planting Near

PotatoFennel

Other Plants for Antler

Growing Sunflower in Zone 3b

Sunflower (Helianthus annuus) is a popular garden vegetable. In Antler, North Dakota, which is in USDA Hardiness Zone 3b, you should direct sow seeds around Wednesday, May 27, 2026.

Your average last frost date is Wednesday, May 20, 2026. Sunflower grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.