Polygonum capitatum · Polygonaceae

Water Pepper

✅ Pet-friendlyPerennial life cycle, regrowing every year.30 to 61 cm

LightFull sun

WaterMedium watering

DifficultyEasy

ColdResistant to temperatures down to -5 degrees Celsius.

Full sunMedium wateringEasyResistant to temperatures down to -5 degrees Celsius.

Description & origin

Water Pepper is a perennial herbaceous plant known for its small leaves and pom-pom shaped flowers. It is quite resilient and easy to grow, making it ideal for gardens and pots.

Size

Can reach up to 60 cm in height with a compact growth habit.

Foliage

Green, glossy leaves that retain their color throughout the year.

Flowering

Blooms in summer, creating an interesting visual effect.

Detailed care

Light

Prefers full sun but tolerates partial shade in warmer climates.

Soil

Well-drained soil rich in organic matter.

Watering

Moderate watering, allowing the soil to dry slightly between waterings.

Temperature

Prefers mild temperatures between 15 and 25 degrees Celsius.

Fertilising

Balanced fertilizer every 4-6 weeks during the growing season.

Repotting

Transplant every 2-3 years, preferably in spring.

Pruning

Light pruning to maintain shape and encourage growth.

Propagation

Easily propagated by cuttings or division of clumps.

Common problems

Aphid infestations

Aphids can infest the plant, causing damage to the leaves.

Fungal diseases

In overly humid conditions, the plant may be susceptible to fungi.

Yellowing of leaves

May indicate overwatering or lack of nutrients.

Uses & curiosities

In the garden

Ideal for borders and flower beds
Attracts pollinators to the garden
Can be grown in decorative pots

Other uses

Used in cooking to season dishes.

Did you know…

Its flowers attract pollinators such as bees and butterflies. It is also used in Asian cuisine.