
Klamathweed
Hypericum perforatum
St. John's Wort is a low-maintenance perennial herb that produces bright yellow flowers and tolerates poor soils. Water moderately and allow soil to dry between waterings to prevent root rot. This hardy plant self-seeds readily and is valued both for its cheerful blooms and traditional medicinal uses.
Toxicity Warning
Known to be toxic to dogs, cats, horses.
Care Level
Low
Sun
Partial Sun
Water
Moderate
Growth Rate
Moderate
Mature Height
24″ – 60″
Soil
loam
Life Cycle
Perennial
Spacing
12″
Watering Schedule
Every 10-14 Days • Moderate Watering Allowing Soil To Dry Between Waterings
Soil pH
6.5 – 7
Temperature
-30° – 95°F
Mature Spread
up to 24″
Root Depth
Medium
Foliage
Medium
Propagation: Seed
Native to
Attracts
Sources
Data: trefle, usda, aspca
Image: trefle.io — Taken Aug 27, 2017 by binah (cc-by-sa)
Angeleno Roots Nursery
$18.17