A couple of questions

How do you separate St John’s wort?

Can St John’s wort be divided?

Division propagation works best for spreading perennial species of St. John's wort, such as Hypericum calycinum, or Aaron's beard (hardy in USDA zones 5 through 9). The process works best in early spring when the plant is emerging from its winter dormancy.

How do you split St John’s wort?

If your plants are getting too big because a lot of suckering is broadening their spread, just shovel out the stems that are popping out beyond where you want. Spring and summer are the two best times to do that. Dug-up rooted pieces can be given away or replanted somewhere else.

How do you transplant St John’s wort?

St John's Wort can be planted indoors to get a head start on your season 6-8 weeks before your last spring frost. You can transplant outdoors or plant directly by seed after the last spring frost and up until 8 weeks before the first fall frost.

Does St John’s wort plant spread?

Considering that this plant is so invasive, consider growing St. John's wort in a container, where its spreading roots and abundant seeds can be kept in check. This plant is easily established in areas where soil is moist but well-drained and in full sun to part shade.

How do you propagate St John’s wort from a cutting?

5:2513:274 Easy Plants to Grow from Cuttings — YouTubeYouTube

Can I hard prune St John’s wort?

If an old shrub needs rejuvenating, cut it back hard to about 30cm in spring. It should then put on fresh growth. Hypericum are low maintenance plants that require very little regular pruning other than what is required to keep it in shape.

Does St John’s wort need full sun?

Light. Grow St. John's wort in full sun in the North for best flower production. In the South, however, the plant profits from having a bit of shade.