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Lawn & Garden

St. John’s wort, Hypericum x ‘Hidcote’

Common Name: St. John’s wort

Type: shrub

Family: Hypericaceae

Zone: 5 to 9     Find Your Zone

Height: 2 to 4 feet

Width: 2 to 4 feet

Bloom Time: June to September

Bloom Color: Yellow

Sun exposure: Full sun to part shade

Soil: well drained, wide range, clay, rocky, dry, sandy

Leaves: deciduous

Fertilizer: Vigoro Tree, Shrub and Evergreen

Pruning: January through February

This plant does not get the credit it deserves. Hypericum is a great drought resistant plant that will thrive in the worst growing conditions and in the best as well. This shrub grows 2 to 4 feet tall, not overwhelming the landscape and gets loaded with beautiful yellow flowers. This plant can die back to the ground in colder climates, to come back as a perennial and in warmer climates, become a deciduous shrub. Hypericum blooms on new growth and should be lightly pruned in late winter.


This plant has herbal properties and is said to possibly help mild depression. It was also used in ancient times to ward off evil spirits, and burned on the eve of St.John’s Day. This is how it got its name. There are other cultivars of Hypericum that grow lower and act as more of a groundcover.


STEP 1: Digging the hole

  • Find a location that has suitable sun exposure for your particular type of plant.
  • Dig your hole an inch or two shallower than the rootball of the plant.
  • Dig the hole twice the diameter of the rootball.
  • Scuff up the sides of the hole with a shovel to help roots break through the native soil.

STEP 2: Putting plant in hole

  • When removing the plant from the pot, check to see if the roots were circling the pot.
  • If the plant is rootbound, gently break up the roots with your hands until loosened up.
  • Set plant level, in the center of the hole.
  • Make sure the top of the rootball is just above soil level.

STEP 3: Amending the soil and filling in the hole

  • Amend the soil with proper amendments for your soil type. 
  • Incorporate 50% native soil with 50% amendment soils like garden soil, composted manure or soil conditioner.
  • Make sure dirt clods are broken up or removed from hole along with rocks.
  • Fill the hole with soils to the soil level and pack down. Do not cover top of rootball with dirt.
  • Water in thoroughly to remove air pockets.

STEP 4: Mulching and fertilizing

  • Cover the planting site with at least 2 inches of the mulch of your choice (pinestraw, cupress mulch,etc.)
  • High Phosphorus root stimulator fertilizers like Quick Start from Miracle Gro are great to use at time of planting.

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Posted 2015-08-16T13:47:21+0000  by Ingar_HD_ATL Ingar_HD_ATL