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How to Grow a St. Johns Wart Plant

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How to Grow a St. Johns Wart Plant

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Overview

St. John's Wort (Hypericum) is in the family of Hypericaceae and is a perennial herb. St. John's Wort is a hardy, woody shrub that can obtain a height of 3 to 4 feet. Its striking bright yellow flowers stand out among the summer foliage, with a multitude of pistils shooting from their centers. Novice gardener's will find St. John's Wort a colorful addition to their gardens and quite easy to grow.

Step 1

Select an area in your garden that receives full sunlight to partial sun. St. John's Wort performs best if planted in an area that receives at least four hours of direct sunlight each day.

Step 2

Consider its soil requirements before planting. St. John's Wort grows best in a sandy soil amended with an organic material such as compost or peat. It prefers to grow in an area that drains well, as it will not tolerate soggy conditions.

Step 3

Consider the particular species size when selecting an area. Varieties such as Golden St. John's Wort can reach a height and width of 3 to 4feet. Other varieties such as Hypericum Moseriamum grow 1 to 2 feet tall. The planting site should accommodate its maximum size.

Step 4

Plant St. John's Wort seeds in early spring, when frost has left your region. Plant the seeds ¼ inch deep within the soil. Sprinkle soil on top of them. Do not cover the seeds with a heavy amount of soil, or they may not germinate.

Step 5

Water the planting area, keeping it moist but not flooded. Keep the soil moist until the seeds have germinated. Once the plants have started to establish themselves, you can cut back watering to two times per week. St. John's Wort is relatively drought tolerant once established, but keeping the area moist will provide the best growth.

Step 6

Fertilize the St. John's Wort once per week with a 20-20-20 water-soluble fertilizer. This will keep the plant at its optimum level of health and it will produce more blooms. An annual application of organic compost will also benefit the plant.

Step 7

Prune only to remove any dead wood or to control the plant's size.

Things You'll Need

  • Compost
  • Peat
  • Water
  • Water soluble fertilizer

References

  • Growing St. John's Wort
  • St. John's Wort Fact Sheet
Keywords: growing St. John's Wort, planting St. John's Wort, St. John's Wort plant

About this Author

Joyce Starr is a professional writer from Florida and owns a landscaping company and garden center. She has published articles about camping in Florida, lawn care and gardening and writes for a local gardening newsletter. She shares her love and knowledge of the outdoors and nature through her writing.