When to Plant Sunflower in Van Orin, Illinois (61374)

Location

Van Orin, Illinois

ZIP Code

61374

USDA Zone

Last Frost

Saturday, April 25, 2026

📅 Planting Calendar

Direct Sow Outdoors Saturday, May 2, 2026

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

🌿 Plant Details

Scientific Name Helianthus annuus

Days to Maturity 80 days

Mature Height 36-96"

Spread 24"

Type Annual

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Low-Moderate (1 inch/week)

↔️

Spacing

18" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 7-14 days

Ready to Plant Sunflower in Van Orin?

Get your seeds now so they're ready by Saturday, May 2, 2026.

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🤝 Good Companions

CornCucumberSquash

⚠️ Avoid Planting Near

PotatoFennel

Other Plants for Van Orin

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Growing Sunflower in Zone 5b

Sunflower (Helianthus annuus) is a popular garden vegetable. In Van Orin, Illinois, which is in USDA Hardiness Zone 5b, you should direct sow seeds around Saturday, May 2, 2026.

Your average last frost date is Saturday, April 25, 2026. Sunflower grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.