Aster Hulk | Callistephus chinensis

Aster Hulk | Callistephus chinensis

Aster 'Hulk' (Callistephus chinensis) is a truly extraordinary variety, unlike any other Aster. Featuring a dense crown of green, petal-like leaves surrounding a large, vibrant yellow-green center, this eye-catching and trendy flower is a standout in both garden beds and floral arrangements. Its long, strong stems make it an excellent cut flower, while its high flower yield per plant ensures an abundant, long-lasting display.

With its unique color and high wholesale & retail demand, Aster 'Hulk' is a must-have for gardeners, florists, and landscape designers. It thrives in sun to partial shade and is ideal for borders, pots, window boxes, and patio containers.

Key Features:

✔ Unique green-centered blooms with petal-like leaves
✔ Long, strong stems – perfect for cut flowers & floral arrangements
✔ High flower production per plant
✔ Excellent vase life and high market demand
✔ Ideal for borders, containers, and mixed plantings

Growing Information:

• Crop Time: 14-15 weeks (Spring)
• Plant Height: 60 cm
  
• Light Requirement: Full Sun to Partial Shade
• Soil Requirements: Well-drained, sandy loamy soil (pH 6.0-6.5)
• Best Uses: Bedding, cut flowers, patio pots, window boxes

How to Grow Aster 'Hulk'

Sowing Instructions:

• Sowing Time:
  • January for May flowering (artificial long days)
  • May for September flowering (natural day length)
  • July for January flowering (artificial long days)
• Sowing Method: 3-5 seeds per plug; sowing directly into final pots is possible.
• Germination:
  • Takes 10-12 days at 20-21°C .
  • Cover seeds lightly with vermiculite after sowing.
  • Prevent premature flowering by maintaining four-hour night interruptions.

Growing On:

• Transplant plugs after 3-4 weeks.
• Maintain temperatures of 14-16°C for strong, compact growth.
• Lower temperatures delay flowering but improve plant habit.

Care & Maintenance:

• Deadhead or cut flowers regularly to extend the blooming season.
• Avoid replanting in the same location two years in a row to prevent Fusarium Wilt.
• Apply balanced fertilizer weekly (100-150 ppm nitrogen, potassium-balanced N:K₂O = 1:1.5).
  • • If using a 10-15-10 fertilizer, apply 1-1.5 g per liter of water.
    • If using a 20-30-20 fertilizer, apply 0.5-0.75 g per liter of water.
    • Apply this solution weekly for optimal plant growth.
• Prevent deficiencies with magnesium sulfate (0.025%) and iron chelate if needed.

Why Choose Aster 'Hulk'?

✔ A visually striking, trendy flower with unique green coloration
✔ Perfect for floral designers, event decorators, and home gardeners
✔ Easy to grow with high market demand

Make a bold statement in your garden or bouquets with Aster 'Hulk'! Order premium seeds today!