Plant Care Triadenum fraseri

Triadenum fraseri

Also known as

Triadenum fraseri, bog St. John's wort, Fraser's St. John's wort and Fraser's marsh St. John's wort


Hypericum fraseri

How to care for Triadenum fraseri


How often to water your Triadenum fraseri

Water needs for Triadenum fraseri
0.5 cups
every 9

Triadenum fraseri 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

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Triadenum fraseri in your home

Light needs and placement for plant Triadenum fraseri: 1ft from a window
1ft or less from
a window

Triadenum fraseri love being close to bright, sunny windows 😎.

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

Triadenum fraseri does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Triadenum fraseri in your home 🏡.


How to fertilize Triadenum fraseri

Nutrient, fertilizer, and repotting needs for Triadenum fraseri: 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 Triadenum fraseri after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs

Care Summary for Triadenum fraseri

Triadenum fraseri

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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