Great Saint John's Wort (Hypericum pyramidatum) Yellow Flower Herb Seeds

Add a burst of color and natural beauty to your landscape with Great Saint John’s Wort Seeds. Scientifically known as Hypericum pyramidatum, this perennial flowering herb is celebrated for its vibrant golden-yellow blooms and upright, bushy growth habit.

Native to North America, Great Saint John’s Wort thrives in a range of garden conditions—from borders and wildflower gardens to pollinator habitats. It is easy to grow, low-maintenance, and attracts butterflies, bees, and beneficial insects.

With its bright flowers and dense foliage, this plant makes a perfect ornamental addition to home gardens, providing long-lasting summer color and structure.

Features

• Produces vivid yellow flowers throughout summer
• Hardy perennial native to North America
• Attracts pollinators such as bees and butterflies
• Excellent for wildflower gardens, borders, and meadows
• Low-maintenance and drought-tolerant once established
• Adds vibrant texture and height to any garden design

Specifications

• Scientific Name: Hypericum pyramidatum
• Common Names: Great Saint John’s Wort, Great St. Johnswort
• Plant Type: Perennial Herb
• Growth Habit: Upright, bushy
• Height: 3–5 feet (90–150 cm)
• Spread: 2–3 feet (60–90 cm)
• Foliage: Deep green, lance-shaped leaves
• Flower Color: Bright yellow with prominent stamens
• Bloom Season: Mid to late summer
• Sunlight: Full Sun to Partial Shade
• Soil Type: Moist, well-drained, loamy soil
• Soil pH: 6.0–7.5
• Watering Needs: Moderate; drought-tolerant after establishment
• USDA Zones: 4–9
• Temperature Range: 55–80°F (13–27°C)
• Season: Spring or early summer planting
• GMO Status: Non-GMO
• Organic Status: Conventional (organic available by source)
• Maintenance Level: Low
• Companion Plants: Black-Eyed Susan, Yarrow, Coneflower, Coreopsis

Planting Guide

• Soil Preparation: Select a sunny location with moderately moist, well-drained soil.
• Sowing: Start indoors 6–8 weeks before the last frost, or sow directly outdoors after frost risk passes.
• Depth: Press seeds lightly into the soil surface; do not cover deeply, as they require light for germination.
• Watering: Keep soil lightly moist during germination (14–21 days).
• Transplanting: Move seedlings outdoors when they reach 2–3 inches tall, spacing them 18–24 inches apart.
• Care: Water regularly until plants are established, then reduce frequency.
• Maintenance: Deadhead spent blooms to encourage prolonged flowering. Prune lightly in early spring to shape the plant.