**Pre-orders are for local pickup only. We do not ship plants. Please double check your location and ensure you are able to pick up your plants in the spring (available for pickup starting May 11th). Specify pickup date in 'notes' when completing your order.

**This plant is native to Northern Michigan

Growing Requirements:

  • Flourishes in well-drained soil
  • Prefers full sun to partial shade
  • Tolerant of various soil types, including loamy and sandy soils
  • Drought tolerant once established
  • Hardy in USDA zones 4-8


Klam's St. John's Wort (Hypericum kalmianum) is an enchanting deciduous shrub admired for its vibrant yellow flowers, ornamental berries, and compact growth habit. Its adaptability to various soil conditions and low maintenance make it a versatile addition to gardens, borders, and landscape beds. This native plant not only adds beauty to the landscape but also attracts pollinators and provides food for wildlife.

Mature Size and Form:

In optimal conditions, Klam's St. John's Wort can reach a height of 2 to 3 feet with a similar spread. Its dense, mounding growth habit is adorned with small, ovate leaves and clusters of bright yellow flowers, followed by ornamental berries, creating a delightful display of color and texture in the garden.

Benefits to the Local Ecosystem:

Klam's St. John's Wort offers several ecological benefits, enriching the local ecosystem and supporting biodiversity:

  • Pollinator Attraction: The bright yellow flowers of Klam's St. John's Wort attract bees, butterflies, and other pollinators, enhancing pollination and promoting biodiversity in the garden.
  • Wildlife Habitat: The dense growth habit and ornamental berries of Klam's St. John's Wort provide food and cover for birds and small mammals, contributing to habitat diversity and ecological balance in the garden.
  • Erosion Control: The fibrous root system of Klam's St. John's Wort helps stabilize soil and prevent erosion on slopes and embankments, making it an excellent choice for erosion-prone areas.
  • Visual Appeal: With its charming flowers and compact form, Klam's St. John's Wort adds color and texture to gardens, borders, and landscape beds, creating a welcoming and inviting outdoor space.
  • Low Maintenance: Once established, Klam's St. John's Wort is relatively low-maintenance, requiring minimal watering and care. It's an excellent choice for gardeners seeking a resilient and beautiful plant for a variety of landscape settings.