Alphabetical Plant Listing

Hypericum calycinum (St. John's Wort)

St. John's Wort, Aaron's Beard, Rose of Sharon, Resurrection Plant, Large-Flowered St. John's Wort, Creeping St. John's Wort


Hypericum calycinum (St. John's Wort) is a small, semi-evergreen shrub with screaming bright yellow flowers, 3 in. wide (7 cm), for weeks from mid-summer to mid-fall. Each rose-like flower presents 5 petals surrounding a prominent tuft of bushy stamens and reddish anthers. Borne solitary or in clusters of 2-3 flowers, they appear in such quantities that they literally cover the foliage. Arranged along procumbent stems, the oval leaves emerge chartreuse-bronzed but quickly turn to medium green, dark green, then blue-green - contrasting against the yellow flowers. A popular groundcover thanks to its lush dark green to bluish-green foliage and its golden flowers. Evergreen in warm winter climates.

  • Grows up to 12-18 in. tall (30-45 cm) and 18-24 in. wide (45-60 cm). Spreads rapidly by underground stems. May invade other plantings unless confined.
  • A full sun to part shade lover, this plant is easily grown in medium moisture, well-drained soils. Tolerates a wide range of soils but thrives in sandy soils. Best flower production occurs in full sun. Drought tolerant once established.
  • Low maintenance, this plant is also generally pest and disease free. Deer resistant.
  • Perfect for rock gardens, border fronts, naturalized plantings or massed as a ground cover. Great on banks and slopes for erosion control or under trees where it competes well with shallow tree roots.
  • Clip or mow plants in late winter or early spring every 2-3 years to renew and promote new growth.
  • Native to Southern Europe, Southwestern Asia

Not sure which Hypericum - St John's Wort to pick?
Compare All Hypericum - St John's Wort

Buy Hypericum calycinum (St. John's Wort)

Requirements

Hardiness 5 – 9
Heat Zones 4 – 9
Climate Zones 2, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Shrubs
Plant Family Hypericum - St John's Wort
Exposure Full Sun, Partial Sun
Season of Interest Summer (Mid,Late)
Fall
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" (45cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Semi-Evergreen
Tolerance Drought, Dry Soil
Garden Uses Banks and Slopes, Beds and Borders, Ground Covers
Garden Styles Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

Buy Plants


Mariola Anna S, Stephen Farhall / Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 5 – 9
Heat Zones 4 – 9
Climate Zones 2, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Shrubs
Plant Family Hypericum - St John's Wort
Exposure Full Sun, Partial Sun
Season of Interest Summer (Mid,Late)
Fall
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" (45cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Semi-Evergreen
Tolerance Drought, Dry Soil
Garden Uses Banks and Slopes, Beds and Borders, Ground Covers
Garden Styles Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

Plant Calculator

How many Hypericum calycinum (St. John's Wort) do I need for my garden?

%
ft
ft

Your Shopping List

Plant Quantity
Hypericum calycinum (St. John's Wort)

Find your Hardiness Zone

Find your Climate Zone

Find your Heat Zone

Join Gardenia.net

Create a membership account to save your garden designs and to view them on any device.

Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

Join now and start creating your dream garden!

Create a New Collection

Optional. For your reference.


Move Selected Plants to a Different Collection


Delete Collection

This field is required.

Rename Collection

This field is required.