How to Grow Sunflower

Ready to grow Sunflower?

Order seeds from trusted suppliers.

🛒 Amazon 🌿 True Leaf

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🛠️ Supplies You'll Need

🌍 Flower Garden Soil ✂️ Pruning Shears 🧤 Garden Gloves 🚿 Watering Can

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Find Your Sunflower Planting Dates

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🌿 Plant Overview

Scientific Name Helianthus annuus

Category flower

Type Annual

Days to Maturity 80 days

Starting Method Direct Sow

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Low-Moderate (1 inch/week)

↔️

Spacing

18" apart

🌱

Depth

1" deep

📏

Height

36-96"

🌱

Germination

7-14 days

Ready to Grow Sunflower?

Find quality seeds from trusted suppliers.

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🤝 Good Companions

CornCucumberSquash

⚠️ Avoid Planting Near

PotatoFennel

Sunflower Planting Calendar by Zone

Sunflower Planting Calendar by State

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Frequently Asked Questions

When should I plant Sunflower? +

Sow Sunflower seeds directly in the garden 1 weeks after your last frost date. Use the search on this page to find exact dates for your location.

How long does Sunflower take to grow? +

Sunflower typically matures in about 80 days from planting. Exact timing varies by variety, soil conditions, and local climate.

Should I start Sunflower indoors or direct sow? +

Sunflower does best when direct sown outdoors. Plant seeds directly in the garden at the appropriate time based on your local frost dates.

How much sun does Sunflower need? +

Sunflower requires full sun (6-8 hours) to thrive.

How far apart should I plant Sunflower? +

Space Sunflower plants 18 inches apart to allow adequate airflow and root development.

How much water does Sunflower need? +

Sunflower has low-moderate (1 inch/week) water needs. Consistent moisture is important especially during germination and early growth.

About Sunflower

Iconic tall annual with large yellow blooms. Seeds attract birds and can be harvested for eating. Incredibly easy to grow from direct sow.

Expect your Sunflower to be ready for harvest in approximately 80 days from planting.

Use the search above or browse by zone or state to find the perfect planting dates for your location.