Hypericum Propagation Methods

Hypericum is a flowering bush or ground cover. The leaves are bright green and after a couple of years will be covered in bright yellow flowers. With proper care, such as soil and pruning methods, you can help to control the amount of flowers that bloom each year. Hypericum can survive in many different types of soil ranging from sandy to clay soils. Knowledge of propagation methods can help you to spread the plant in your garden or give you the knowledge on how to stall propagation for control methods.

Method 1 - Seed Propagation

Propagation by seed is the most popular method by which Hypericum is grown. The flowers are hermaphrodite and have both male and female parts, needing only to be pollinated by insects.

  • Once the seeds are pollinated they can drop to the ground and sow themselves.
  • If you see seeds on the ground you can work them slightly into the soil. They only need to be slightly covered with soil.
  • You can also start the plants indoors in small pots and wait for germination, and then transplant them outdoors in the spring.

Propagation from seed is the process that takes the longest, as you are waiting for the seed to germinate the plant to grow and the flowers to develop.

Method 2 - Propagation By Using Cuttings

  • You can use cuttings of mature wood to stimulate propagation as well.
  • Cut the mature wood making sure to get the heel of the branch as well.
  • You can plant it in loose soil that is very well watered.
  • It will take a couple of weeks for roots to form on the cutting.
  • Once the roots are stable you can transplant the cutting into the outdoor spot of our choosing.

Method 3 - Propagation By Root Division

Using root division on mature plants or seedlings is a great way to propagate this plant.

  • Dig up the root system and gently separate a portion of the root and top growth from the existing root ball.
  • Separate it into many different pieces and let these plants form in a small pot until they have shown they are strong enough to survive outdoors.

The groundcover variety of the Hypericum propagates very well on its own and in some areas actually needs to be contained rather than propagated. With so many different choices on how the plant can be grown and expanded you will not be at a loss should you have a space that needs to be filled with beautiful flowers.

It is also important to note that the hypericum may not always flower in the first or second year of growth. Mature plants grow better and the flowers always grow on the prior years wood. Do not trim too much of the plant down in the fall as this will hinder floral growth.

Every few years some gardeners recommend actually cutting down the plant almost to the ground allowing the new growth to take over and form a healthy hearty plant. Propagation of the hypericum is easy and will not take much time or gardening skill.