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 Houston, Texas.

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 Houston, Texas

Houston, Texas

55% Medium

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

Light needs for plant Greater Canadian St. John's-Wort in Houston, Texas

Plant growth potential is currently low 📉

December 4th, 2022

Sunlight intensity as measured by “net radiation” in Houston is currently low 📉.

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

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Light needs for plant Greater Canadian St. John's-Wort in Houston, Texas

Sunlight will decrease by 18.8% ☀️

December 4th, 2022

Houston is trending towards lower sunlight intensity!

The amount of sunlight in Houston is expected to decrease by 18.8% over the next 2 weeks to an average of 10.1 megajoules of energy per m2 per…

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Light needs for plant Greater Canadian St. John's-Wort in Houston, Texas

Daylight will decrease by 0.7 hours 📉

December 4th, 2022

This month, Houston is getting an average of 8.9 hours of clear sky sunlight per day.

Hours of daylight will decrease by 6.4% over the next two weeks. Your plants will get 10.1 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.

Greater Canadian St. John's-Wort does not tolerate low light 🚫.

Houston, Texas currently has medium levels of sunlight intensity, you can help this plant grow by treating it to ample light ☀️.

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.

When to repot Greater Canadian St. John's-Wort

Nutrient needs for plant Greater Canadian St. John's-Wort in Houston, Texas

Is this a good time of year to repot? Yes! 🪴

December 4th, 2022

The growing potential in Houston is medium 👌.

It's best to repot plants during their active growing periods when they have the energy to re-establish their roots! This is a great time to repot any…

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

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