✅ Pet-friendlyPerennial life cycle, with active growth in spring and summer.30 to 100 cm
LightFull sun
WaterModerate, allows drying between waterings
DifficultyEasy
ColdResistant down to -10 degrees Celsius.
Full sunModerate, allows drying between wateringsEasyResistant down to -10 degrees Celsius.
Description & origin
St John's Wort is a perennial shrub that can reach up to one meter in height. It is known for its vibrant yellow flowers that bloom in summer.
Size
Can reach up to one meter in height and one meter in width.
Foliage
Shiny green, oval, and opposite leaves.
Flowering
Blooms from June to August, attracting pollinators.
Detailed care
Light
Prefers full sun but tolerates some shade.
Soil
Well-drained, fertile, and slightly acidic soil is ideal.
Watering
Water moderately, allowing the soil to dry between waterings.
Temperature
Resistant to mild temperatures, tolerates some cold.
Fertilising
Fertilize once in spring with a balanced fertilizer.
Repotting
Transplant in spring when the plant is actively growing.
Pruning
Light pruning after flowering to maintain shape and encourage growth.
Propagation
Easily propagated by cuttings or seeds.
Common problems
Pests
Can be affected by aphids and scale insects.
Fungal diseases
Susceptible to fungi if the soil is too wet.
Uncontrolled growth
Can become invasive if not controlled.
Uses & curiosities
In the garden
- Ideal for borders and flower beds
- Attracts pollinators like bees and butterflies
- Used in naturalistic style gardens
Other uses
The flowers can be used in floral arrangements.
Did you know…
The flowers of St John's Wort are often used in traditional medicine. It is also a popular ornamental plant in gardens.