Sunflower ‘Galaxy’ F1 Hybrid Seeds

Sunflower ‘Galaxy’ F1 Hybrid Seeds

Botanical Name: Helianthus annuus

• High-performance commercial cut flower variety.
• Bright golden-yellow petals surrounding a deep, dark disc.
• Pollen-free flowering habit keeps blooms clean indoors.
• Excellent vase life—ideal for floristry and bouquets.
• Uniform, tall plants reaching around 150 cm in height.
• Flowers quickly—ready in just 7–8 weeks from sowing.
• Thrives in full sun and suits spring to early autumn sowings.

Plant Details:

• Plant Type: Warm-season annual
• Plant Height: Approx. 150 cm
• Flower Size: Medium–large blooms with dark disc
• Pollen: Pollen-free

Sowing Information:

• Sow When:
  • Temperate: September–January
  • Subtropical: August–February
  • Tropical: March–September (avoid peak wet)
  • Cool: October–December
  • Arid: September–January (with irrigation)
• Germination: 7–10 days @ 18–25°C
• Depth: 10–15 mm
• Position: Full sun
• Sow Where: Direct into garden beds; tap root dislikes transplanting
• Soil Type: Fertile, well-drained soil enriched with compost
• Spacing: 30–40 cm between plants; rows 60–75 cm apart

Growing Tips:

• Apply deep, infrequent waterings to encourage strong taproots.
• Stagger sowings every 2–3 weeks for a steady flower supply.
• Protect young seedlings from birds and snails.
• Mulch around plants to conserve soil moisture and suppress weeds.
• Harvest blooms when petals just begin to open for maximum vase life.

Harvest:

Begin harvesting around 7–8 weeks after sowing. Cut stems when the first petals unfurl for cut flowers, or allow some heads to mature to attract pollinators and birds.

When to Sow Sunflower ‘Galaxy’ in Your Climate

Find out more about how sunflowers support biodiversity here.

Click here to find our detailed Sunflower Grow Guide for Australia.