Lysimachia ephemerum
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Lysimachia ephemerum

Milky Loosestrife · Silver loosestrife · Willow-leaved Loosestrife

Tier 1 Difficulty: medium Water: low Light: full_sun
0
Soil pH
6–7
Hardiness
Zone 3–8
Click count
99
Observations
307

Description

Source: leafsnap

Lysimachia ephemerum, the willow-leaved loosestrife or milky loosestrife, is a species of flowering plant in the primrose family Primulaceae, native to France, Spain, Portugal and Morocco. Against grey-green foliage this hardy herbaceous perennial bears erect racemes of delicate white flowers with purple stamens on 1 m (3.3 ft) stems in early summer. It is cultivated as an ornamental plant, and holds the Royal Horticultural Society's Award of Garden Merit. It requires a position in full sun, and reliably moist soil.

Care Guide

💧 Water
☀️ Light Full sun

Gooseneck loosestrife grows most vigorously when given the maximum amount of daylight, though it can also do well with lower light levels. Uninterrupted sun exposure plays a key role in its healthy development. Its native habitat has abundant sunlight, which matches its needs. Note that improper or imbalanced light can impede its growth or cause damage.

Ideal: Full sun
FAQ
What are the sunlight requirements for Willow-leaved loosestrife?

Willow-leaved loosestrife, also known by its botanical name Lysimachia ephemerum, thrives in various sunlight conditions. For full sun exposure, it requires above 6 hours of sunlight daily. If the plant is in partial sun, it should receive about 3-6 hours of sunlight. It's important to observe how sunlight moves through your garden to ensure you choose spots that provide the perfect balance of light and shade. This careful placement ensures the plants' happiness and health.

🌡️ Temperature 0–32.2°C

Gooseneck loosestrife is a plant that naturally grows best in climates with temperatures between 68 and 95°F (20 to 35℃). It favors this range of warmth but may require adjustments to shading and watering when the seasons change.

Ideal temperature: 0–32.2°C
💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

The best time to fertilize Gooseneck loosestrife is in early spring, as it comes out of dormancy and begins active growth. Fertilizing supplies essential nutrients needed for healthy development. Although Gooseneck loosestrife has fairly low fertilizer requirements, giving it fertilizer annually can improve its survival and encourage better, longer-lasting flowers.

🪴 Pot & Repot
✂️ Pruning

To encourage growth and flowering, prune willow-leaved loosestrife from early to late spring by removing any dead stems. This plant thrives in well-drained soil with full to partial sunlight. Regular pruning helps maintain its shape and health, resulting in a bushier and more visually appealing plant.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb
Life Cycle
Perennial, Annual
Genus
Lysimachia
Family
Primulaceae
Hardiness Zone
3-8
Mature Height
61 cm to 91 cm
Mature Spread
0.61 m to 1.22 m
Leaf Color
Green, Gray, Silver
Leaf Type
Deciduous
Flower Color
White
Flower Size
11.43 cm
Bloom Time
Early summer, Mid summer
Planting Time
Spring
Harvest Time
Mid summer
Native Area
Russia, Vietnam, Japan, Koppen, Laos, South Korea, China

Tags (9)

Common Names (3)

en Milky Loosestrife
en Silver loosestrife
en Willow-leaved Loosestrife