Green Gold Bupleurum Griffithii (Rotundifolium / Hares Ear / Thoroughwax) Flower Seeds

Green Gold Bupleurum Seeds (Bupleurum griffithii), also known as Rotundifolium, Hare’s Ear, or Thoroughwax, produce striking chartreuse-green foliage and delicate yellow-green flowers that bring elegance and contrast to gardens and floral arrangements. This unique plant is prized by florists for its long-lasting cut stems and is a must-have for gardeners looking to add texture and natural structure to their landscapes.

A hardy and easy-to-grow annual, Bupleurum thrives in full sun and well-drained soil. It adds visual interest to mixed borders and wildflower plantings and grows well alongside other flowering plants. Best of all, its flowers attract beneficial pollinators and create lush, airy displays both in gardens and vase arrangements.

Features

• Unique lime-green foliage and flower clusters
• Popular filler plant for bouquets and floral design
• Attracts bees, butterflies, and beneficial insects
• Easy to grow in varied soil types
• Thrives in full sun with low maintenance
• Non-GMO seeds for natural gardening
• Suitable for cutting gardens and borders

Specifications

• Seed Type: Green Gold Bupleurum (Bupleurum griffithii)
• Common Names: Rotundifolium, Hare’s Ear, Thoroughwax
• Plant Type: Annual Flower
• Plant Height: 18 – 24 inches tall
• Zones: USDA Zones 3–10
• Light Requirement: Full Sun
• Soil Type: Well-draining, sandy or loamy soil
• Germination Time: 7 – 14 days
• Days to Maturity: 60 – 75 days
• GMO Status: Non-GMO
• Season: Spring planting after frost
• Planting Depth: 1/4 inch
• Spacing: 8 – 12 inches apart
• Optimal Temperature: 60°F to 70°F (15°C to 21°C)
• Watering: Moderate, drought-tolerant once established
• Companion Plants: Eucalyptus, Snapdragons, Cosmos, Queen Anne’s Lace
• Bloom Time: Early to mid-summer
• Wildlife Support: Attracts bees and hoverflies
• Uses: Cut flowers, garden borders, pollinator gardens
• Storage: Store in cool, dry place until planting

Planting Guide

• Prepare Soil: Choose well-draining soil and a sunny location.
• Direct Sow: Sow outdoors after frost, cover lightly with soil.
• Watering: Keep moist during germination, then water moderately.
• Thinning: Thin seedlings to proper spacing once established.
• Cutting: Harvest stems when flowers open for longest vase life.
• Maintenance: Bupleurum is low-care; avoid overwatering.