St. John's Wort Seeds

Hypericum perforatum — St. John's Wort is a perennial herb with bright yellow star-shaped flowers, traditional herb garden value, and ornamental appeal in sunny borders.

This guide covers growing conditions, seed-starting basics, garden uses, and ordering information for Seedman customers.

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St. John's Wort with bright yellow star-shaped flowers

Plant Profile

Botanical Name:
Hypericum perforatum
Common Name:
St. John's Wort
Category:
Perennial herb flower seeds
USDA Zones:
Commonly hardy in zones 4–8
Height:
Often 18–30 inches
Light:
Full sun to partial shade

Why Grow St. John's Wort?

St. John's Wort is a perennial herb with bright yellow star-shaped flowers, traditional herb garden value, and ornamental appeal in sunny borders. It is a useful addition for gardeners looking for distinctive seed-grown plants with ornamental, herbal, culinary, fragrance, or collection value.

Note: This page is for gardening and seed-starting information only. It is not medical advice.

Seed Germination Guide

Surface sow or cover very lightly because seed is small. Keep moist and bright until seedlings establish.

Seed germination can vary by freshness, storage, temperature, and growing conditions. Use clean containers and a well-drained seed-starting medium.

Garden & Landscape Uses

St. John's Wort can be used where its mature size, sunlight needs, and moisture preferences are matched to the site. For best performance, provide full sun to partial shade and average moisture; well-drained soil.

Order St. John's Wort Seeds

Visit the original Seedman product page for current availability, package sizes, and ordering details.

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Frequently Asked Questions

What is St. John's Wort grown for?

St. John's Wort is grown for herb gardens, specialty plant collections, culinary use, fragrance, flowers, or traditional garden interest.

Is this page medical advice?

No. This page is for seed-growing and gardening information only, not medical advice.

Can herbs be grown in containers?

Many herbs grow well in containers when given the right light, drainage, and moisture.

Should herb seed be covered deeply?

Most herb seed should be covered lightly; very small seed may need surface sowing.