Yellow Silphium Perfoliatum Flower Seeds for Planting – 100 pcs

Add bright, cheerful blooms to your garden with Yellow Silphium Perfoliatum (Cup Plant) seeds. This hardy perennial produces vibrant yellow flowers atop tall stems, attracting pollinators such as bees and butterflies. Ideal for flower beds, borders, or naturalistic garden landscapes, Silphium perfoliatum is easy to grow, long-blooming, and perfect for gardeners seeking low-maintenance, pollinator-friendly plants.

Features & Specifications:

• Botanical Name: Silphium perfoliatum

• Plant Type: Perennial Flower

• Flower Color: Yellow

• Seed Quantity: 100 pcs

• Plant Height: 120250 cm (48 ft)

• Blooming Season: Summer

• Growth Habit: Upright, tall perennial with bright yellow flowers

• Uses: Ideal for flower beds, borders, pollinator gardens, and natural landscapes

Planting & Sowing Instructions:

1. Soil: Well-draining, fertile soil enriched with organic matter.

2. Light: Full sun for best flowering; tolerates partial shade.

3. Sowing: Sow seeds 0.51 cm deep in seed trays or directly in garden beds; lightly cover with soil.

4. Watering: Keep soil moist during germination; moderate watering as plants mature.

5. Germination Time: 23 weeks under warm conditions.

6. Spacing: Transplant seedlings 6090 cm (2436 inches) apart to accommodate mature size.

7. Care: Minimal maintenance; cut back old stems after flowering to encourage healthy growth next season.