Myrtleleaf St. Johnswort

Also known as

Hypericum glaucum, Hypericum sessiliflorum and Myriandra glauca

Taxonomy

Scientific name

Hypericum myrtifolium

Genus

Hypericum

Family

Hypericaceae

Order

Malpighiales

How to care for Myrtleleaf St. Johnswort

💦 Water

How often to water your Myrtleleaf St. Johnswort

Myrtleleaf St. Johnswort needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Water 0.5 cups every
9

Does your plant get direct sunlight?

No Yes

Select the pot size

☀️ Light

Finding light for Myrtleleaf St. Johnswort in your home

Myrtleleaf St. Johnswort love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Myrtleleaf St. Johnswort does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Myrtleleaf St. Johnswort in your home 🏡.

🪴 Nutrients

How to fertilize Myrtleleaf St. Johnswort

Nutrient, fertilizer, and repotting needs for Myrtleleaf St. Johnswort: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Myrtleleaf St. Johnswort after it doubles in size or once a year—whichever comes first.

st john’s wort help needed hi all, does anyone know what I can do with my at johns wort? I am applying fungus shield every two weeks, fed it, i have a small garden bed in my home and it’s USDA Zone 9a, like, it’s in a north facing area so there is mostly shady but gets plenty of sun in summer

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💡 FAQs

💦 Water Needs

Myrtleleaf St. Johnswort prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

☀️ Sunlight Needs

Myrtleleaf St. Johnswort requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

🐶 🐈 👶 Toxicity

Greg does not have confirmed data on this plant’s toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, it’s always best to consult a medical professional.

If you or someone else ingested this plant, call Poison Control at US (800) 222-1222. If a pet consumed this plant, contact your veterinarian or the ASPCA at US (888) 426-4435.

🪴 Soil

Myrtleleaf St. Johnswort does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!

💩 Fertilizer

Myrtleleaf St. Johnswort grows very slowly and doesn’t require added fertilizer. Replacing your plant’s potting soil once a year should provide them with more than enough nutrition. Remember, plants get their energy from sunlight, not fertilizer!

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.