Also known as: Common willow herb, Bronze willow herb
Purple-Leaved Willow-Herb (Epilobium coloratum) is an herbaceous perennial plant with square or round stems. Its flowers attract bees and flower flies. The foliage is also eaten by the caterpillars of various moths. Epilobium coloratum is widely present in the eastern United States.
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Perennial
Lifespan
Herb
Plant Type
Summer, Fall
Bloom Time
30 cm to 1.02 m
Plant Height
30 cm
Spread
2.5 cm
Flower Size
White, Pink, Purple
Flower Color
Deciduous
Leaf type
On This Page
Images
Attributes
Care Guide
Images of Purple-Leaved Willow-Herb
Attributes of Purple-Leaved Willow-Herb
Growth Rate
During the active growth season of Spring, purple-Leaved Willow-Herb displays a moderate rate of growth, leading to robust stem elongation and vigorous leaf expansion. This growth speed culminates in an ascend in its overall stature while enriching the plant's canopy with an intricate network of purple-veined foliage. Additionally, purple-Leaved Willow-Herb's modest growth pace in Spring crucially spaces out its energy expenditure, facilitating sustained growth across the season despite potential environment variability. In other seasons, the growth of purple-Leaved Willow-Herb may ebb, aligning with its specific seasonality.
Care Guide for Purple-Leaved Willow-Herb
Every week
Water
Full sun
Sunlight
5 - 32 ℃
Ideal Temperature
Water:
In its native moist habitats, purple-Leaved Willow-Herb thrives with consistent moisture. It is moderately drought-tolerant but prefers evenly damp soil, requiring weekly watering. Typically grown outdoors, purple-Leaved Willow-Herb benefits from regular rainfall during its growing season to meet its water needs and support healthy development.
Fertilize:
For optimal growth, purple-Leaved Willow-Herb requires balanced, slow-release fertilizer in early spring and midsummer. Follow package directions to avoid over-fertilization. Regular feeding during active growth enhances resilience, while frequency should decrease in late summer and stop in winter. Always water purple-Leaved Willow-Herb after fertilizing to prevent root burn.
Pruning:
Purple-Leaved Willow-Herb features striking purple leaves and thrives with early to late spring pruning. Remove dead stems and spent flowers to encourage growth and blooms. Pruning controls spread, enhances shape, and good air circulation reduces disease risk, promoting overall vigor during its active growth phase.
Propagation:
Propagation of purple-Leaved Willow-Herb thrives when using fresh seeds sown in well-draining soil. Seeds should be planted shallowly for light exposure and kept consistently moist in a warm environment. Once established, seedlings can be transplanted to final locations for optimal growth.
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