Product Description

Yellow Silphium Perfoliatum Flower Seeds for Planting – Grow Tall, Golden Blooms for Stunning Landscapes

Yellow Silphium Perfoliatum Flower Seeds produce tall, striking plants with vivid yellow blooms that brighten large garden spaces, borders, and wildflower landscapes. Known for their impressive height and strong stems, these non-GMO seeds thrive in full sun and well-drained soil, making them a great choice for both beginner and experienced gardeners. Ideal for creating natural, pollinator-friendly garden displays.

Key Features

• Produces tall plants with bright yellow daisy-like blooms
• Excellent for garden borders, wildflower meadows, and landscapes
• Non-GMO, high-germination seeds for reliable growth
• Low-maintenance and drought-tolerant once established
• Attracts butterflies, bees, and other pollinators
• Strong stems suitable for cut flower arrangements
• Ideal for naturalistic and pollinator-friendly gardens

Specifications

• Common Name: Cup Plant / Silphium
• Botanical Name: Silphium perfoliatum
• Variety: Yellow
• Flower Color: Bright Yellow
• Plant Type: Perennial Wildflower
• Blooming Season: Mid-Summer to Early Fall
• Sun Exposure: Full Sun
• Soil Type: Well-drained, loamy or sandy soil
• Watering Needs: Moderate; drought-tolerant when mature
• Germination Time: 14–28 days
• Temperature Range: 15–28°C (59–82°F)
• Planting Depth: 1/4 inch
• Spacing: 18–24 inches
• Plant Height: 4–8 feet
• Maintenance Level: Easy
• USDA Zones: 3–9
• GMO Status: Non-GMO
• Suitable For: Borders, wildflower gardens, pollinator gardens, meadows, landscaping

Planting Guide

• Stratify seeds in the refrigerator for 30–60 days to improve germination.
• Sow seeds 1/4 inch deep in well-drained soil.
• Choose a full-sun location for best flowering.
• Keep soil lightly moist until seedlings emerge.
• Space plants widely to support tall growth.
• Water regularly during early growth, then reduce once established.
• Ideal for natural landscapes and pollinator-friendly garden areas.