How To Propagate St John’s Wort: A Simple Step-By-Step Guide

St John’s wort, or Hypericum perforatum, is a beautiful and useful herb that has been used for centuries for its medicinal properties. One of the best things about this plant is that it is easy to propagate, which means you can grow your own plants from cuttings without having to purchase new ones. In this blog post, we’ll take a closer look at how to propagate St John’s wort so you can start growing your own plants today.

What You Will Need

Before we dive into the propagation process, let’s go over what you will need. Here are some essential items:

– A sharp pair of pruning shears
– Rooting hormone powder
– Potting soil
– Small containers with drainage holes
– Plastic bags or plastic wrap

Step 1: Take Cuttings

The first step in propagating St John’s wort is to take cuttings from an existing plant. Look for healthy stems that are not flowering yet and use clean pruning shears to make a clean cut at a 45-degree angle just below a node (where leaves attach). Each cutting should be around four inches long and have several pairs of leaves.

Step 2: Prepare Cuttings

Once you have taken your cuttings, remove the bottom set of leaves so there is only one or two sets left near the top. Dip the stem in rooting hormone powder and gently tap off any excess powder.

Step 3: Plant Cuttings

Fill small pots with moist potting soil and make holes in each pot using your finger or a pencil. Place one cutting in each hole and gently firm up the soil around it so it stands upright.

Step 4: Cover Pots

Cover each pot with plastic bags or plastic wrap to create a mini greenhouse effect. This will help keep humidity levels high around the cuttings which will encourage them to root faster.

Step 5: Care For Cuttings

Place the pots in a bright but shaded area so they get some natural light but are not in direct sunlight. Check on them every few days to make sure the soil is still moist, and mist with water if it starts to dry out. After a few weeks, you should start seeing roots forming at the bottom of each pot.

Step 6: Transplant Cuttings

Once the cuttings have rooted, you can transplant them into larger pots or directly into your garden bed. Be sure to plant them in well-draining soil and keep them watered until they establish themselves.


Propagation is an excellent way to grow more St John’s wort plants for your garden without having to purchase new ones. By following these simple steps, you will be able to propagate this beautiful herb with ease and soon have a thriving garden full of healthy plants that are perfect for medicinal purposes. So go ahead and give it a try!