St. John’s wort plant (Hypericum perforatum) – Care & Growing Guide

We cover everything important you need to know about growing St. John’s wort plants and the most common issues that people have when caring for these plants.

Caring for St. John’s wort plants

Here are some simple but effective tips for growing St. John’s wort plants.

St. John’s wort plant Problems

Here are the most common issues that people encounter while growing and caring for St. John’s wort plants.

Leaves of St. John’s wort plant turning yellow

The development of yellow leaves is typically a sign of improper care. We have a number of remedies to prevent more leaves of the St. John’s wort plant from turning yellow and frail.

Reviving a Dying St John’s Wort Plant

Here are the most common reasons for dying St John’s Wort plants and steps you can take to fix them before it’s too late.


  • Lavern Swisher:

    My St Jon’s Wort plants berries are black it’s in its 2nd year domes stems have died ! Their are a few pretty yellow flowers but not many I’m at a loss as what to do it faces west and I live in Mo. it’s been a very hot summer!

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