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St. John's Wort Seeds

Yellow St. John's Wort Seeds, Hypericum perforatum, St. John's Wort
$3.95
per Packet
Shipping:
Most orders ship within 48 hours or less. Learn More…

Hypericum perforatum (commonly known as St. John's Wort) is a perennial herb that produces a bright yellow flower, which is often used with the leaves for medicinal purposes.

Zones 3 - 8
Light Requirements
Full Sun
Full Sun
Half Sun / Half Shade
Half Sun / Half Shade
Mature Plant Size 12-36 inches tall
Bloom Time Summer
Size Packet
SKU HYPP
This lovely bright yellow wildflower is now one of our most famous "weeds." St. Johns Wort (a native of Europe) occurs commonly along roadsides and hedgerows, and this herb has one of the most glamorous histories in the plant kingdom.

For our purposes, the starry flowers, which are always described as "frothy" due to the crowd of delicate stamens, are lovely in the garden and bunched at the end of stiff stems on dependably perennial plants.

SKU HYPP
Common Name St. John's Wort
Botanical Name Hypericum perforatum
Seed Life Cycle Perennials
Light Requirements Full Sun, Half Sun / Half Shade
Flower Color Yellow
Mature Height 12-36 inches tall
Bloom Time Summer
Ships As Seed
Seeds Per Pound 3,200,000
Seeds Per Packet 250
Soil Moisture Well Draining
Soil Type Clay Soil, Sandy Soil, Loamy Soil
Native To Europe, North Africa and Asia.
Ideal Region Northeast, Southeast, Midwest, Southwest, West, Pacific Northwest
Zones 3, 4, 5, 6, 7, 8
Is It Storable? Yes- You can store your seed in any cool (not freezing) dry place that is not subject to extreme temperature variations.
Neonicotinoid-Free Yes - Learn More
Ships to Hawaii, Alaska & Canada Yes

Most orders ship within 48 hours or less.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Orders for in-season products ship within 5 business days. Depending upon your order date, we may hold your shipment to combine it with other products on your order, if applicable. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

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USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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