Plant Care Greater Canadian St. John's-Wort

Greater Canadian St. John's-Wort

Also known as

large St. Johnswort, large St. John's-wort, greater St. John's-wort and larger Canadian St. John's-wort

Taxonomy

Hypericum majus
Hypericum
Hypericaceae
Malpighiales

How to care for Greater Canadian St. John's-Wort

Water

How often to water your Greater Canadian St. John's-Wort

Water needs for Greater Canadian St. John's-Wort
0.5 cups
every 9

Greater Canadian St. John's-Wort needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot located in Boise, Idaho.

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?

Select the pot size

5"
Light

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.

Plant care guide for Greater Canadian St. John's-Wort in Boise, Idaho

Boise, Idaho

75% High

Growing Greater Canadian St. John's-Wort in Boise right now

Light needs for plant Greater Canadian St. John's-Wort in Boise, Idaho

Plant growth potential is currently medium 👌

October 1st, 2022

Sunlight energy as measured by “net radiation” in Boise is currently medium 👌.

The availability of high quality sunlight in your home impacts ability for plants to thrive and is key in determining…

Read more

Light needs for plant Greater Canadian St. John's-Wort in Boise, Idaho

Sunlight will decrease by 34.8% ☀️

September 30th, 2022

Boise is trending towards lower sunlight intensity!

The amount of sunlight in Boise is expected to decrease by 34.8% over the next 2 weeks to an average of 10.9 megajoules of energy per m2 per day…

Read more

Light needs for plant Greater Canadian St. John's-Wort in Boise, Idaho

Daylight will decrease by 2.2 hours 📉

October 1st, 2022

This month, Boise is getting an average of 11.3 hours of clear sky sunlight per day.

Hours of daylight will decrease by 16.8% over the next two weeks. Your plants will get 10.8 total hours of dayl…

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Finding light for Greater Canadian St. John's-Wort in your home

Light needs and placement for plant Greater Canadian St. John's-Wort: 1ft from a window
1ft or less from
a window

Greater Canadian St. John's-Wort love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth during this time of higher sunlight intensity in Boise, Idaho ☀️.

This is a great time to watch your Greater Canadian St. John's-Wort thrive 🌿!

Nutrients

How to fertilize Greater Canadian St. John's-Wort

Nutrient, fertilizer, and repotting needs for Greater Canadian St. John's-Wort: 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 Greater Canadian St. John's-Wort after it doubles in size or once a year—whichever comes first.

FAQs
Water Needs
Sunlight Needs
Toxicity
Soil
Fertilizer

Care Summary for Greater Canadian St. John's-Wort

Greater Canadian St. John's-Wort


Greg recommends:

Water

0.5 cups every 9 days

Placement

< 1ft from a window

Nutrients

Repot after 2x growth

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

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