Kalm St. Johnswort, hypericum kalmianum, is a low growing, mounded shrub with bright yellow flowers, 1-2″ in diameter, from July to mid-Aug. It has a deep blue-green foliage and is great for foundation or border planting. It prefers well-drained soil. This xeriscape plant is an upright branching evergreen that typically grows in a dense mound to 2-3′ tall. Flowers give way to beaked, oval, brown seed capsules that mature in fall and often persist on the shrub until spring. This compact, easy-to-grow shrub forms nice masses and should be placed where the bright yellow flowers show to full advantage. The flowers bloom for about 6 weeks and butterflies, bumblebees, and other pollinators love the nectar. It has no serious disease or insect problems.
Recent Posts
- Am planting a garden..?
- What is the name of the book written about a failed attempt at urban gardening?
- Will I be able to find old coins in my back garden using a metal detector?
- Do you like to work in your garden planting flowers and digging in the dirt?
- How to start gardening organic vegetables and fruits at my home in chennai?
- Are there any CONS to starting a community garden?
- Were to find garden design on a budget?
- What would be a good selection of flowers to plant in a Texas garden?
- How to monetize a community garden?
- I am moving to London from the states with 2 kids, and Muscular Dystrophy. How do I find a place to live?