How much water does my Common St. John's wort need? - PictureThis
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How much water does my Common St. John's wort need?

Common St. John's wort
Hypericum perforatum
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When it comes time to water your Common St. John's wort, you should not be shy about how much water you give. With the first two to three inches of soil dry, this plant will appreciate a long and thorough watering. Supply enough water to soak the soil entirely. The amount of water you add should be enough to cause excess water to flow through the drainage holes at the bottom of your pot. If you don’t see excess water draining from the pot, you have likely underwatered your plant. But do not let the water accumulate inside the soil, which will be very dangerous to the plant as well. Alternatively, a lack of water draining through the pot could indicate poorly draining soils, which is detrimental to the health of this plant and should be avoided. If the plant is outside, 1 inch of rain per week will be sufficient.
Common St. John's wort (Hypericum perforatum)
Common St. John's wort
A species of St. John's worts, Also known as Triptonweed
Botanical name: Hypericum perforatum
Genus: St. John's worts
Description
Common St. John's wort (*Hypericum perforatum*) is a plant species that is native to Europe and Central Asia. Common St. John's wort is considered poisonous to livestock and can cause problems for humans if consumed. This dense, fast-growing plant has been introduced to North America and Australia, where it is often viewed as an invasive species.
Garden Use
Plants of the Hypericum genus are not only good potting choices but also nice plants for your garden. They offer a long-term aesthetic value to your garden with their colorful blooms, and you can harvest for flower bouquets. With their colored-leaf varieties, they add rich hues to the garden. However, Common St. John's wort (Hypericum performatum) is defined as an invasive plant in 9 states in the U.S. due to its expansive rhizome. Check local regulations before planting.
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Other Questions About Common St. John's wort
Care Guide
Watering
Pruning
Sunlight
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Fertilizing
Care Guide
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