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Description
Epilobium Pycnostachyum, commonly known as the denseflower willowherb, is a perennial herb that belongs to the Onagraceae family. It is native to western North America, where it grows in moist areas such as meadows, stream banks, and wetlands. This plant produces a tall, erect stem that can reach up to 6 feet in height. The leaves are lance-shaped and grow in an alternating pattern along the stem. The flowers are small, pink to purple in color, and grow in dense clusters at the top of the stem. The plant blooms from June to September.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Myrtales |
| Family | Onagraceae |
| Genus | Epilobium |
Appearance
Epilobium Pycnostachyum is a tall, erect plant with lance-shaped leaves that grow in an alternating pattern along the stem. The flowers are small, pink to purple in color, and grow in dense clusters at the top of the stem. The plant can reach up to 6 feet in height and blooms from June to September. The seeds are small and brown and are dispersed by the wind.
Care Guide
Epilobium Pycnostachyum prefers moist, well-drained soil and partial shade to full sun. It is tolerant of a wide range of soil types but prefers soils that are slightly acidic. Water the plant regularly, especially during the summer months, but be careful not to overwater as this can lead to root rot. Fertilize the plant in the spring with a balanced fertilizer. Prune the plant in the fall to remove any dead or damaged stems.Epilobium Pycnostachyum is hardy in USDA zones 4 to 9.
Common Pests & Diseases
Epilobium Pycnostachyum is generally not susceptible to pests or diseases. However, it can be affected by rust, a fungal disease that causes orange or yellow spots on the leaves. If rust is present, remove and destroy the affected leaves and treat the plant with a fungicide.
Habitat
Epilobium Pycnostachyum is native to western North America, where it grows in moist areas such as meadows, stream banks, and wetlands. It can also be found in disturbed areas such as roadsides and abandoned fields.
Question and Answer
Q: Is Epilobium Pycnostachyum a good plant for attracting pollinators?
A: Yes, the flowers of Epilobium Pycnostachyum are attractive to bees, butterflies, and other pollinators.
Q: Can Epilobium Pycnostachyum be grown in containers?
A: While Epilobium Pycnostachyum can be grown in containers, it is best suited for garden beds or naturalized areas.
Q: Does Epilobium Pycnostachyum require a lot of maintenance?
A: No, Epilobium Pycnostachyum is a low-maintenance plant that requires minimal care once established.
Q: Can Epilobium Pycnostachyum be propagated from seed?
A: Yes, Epilobium Pycnostachyum can be propagated from seed. Sow the seeds in the fall or early spring in a moist, well-drained soil.
Related Plants
- Epilobium Angustifolium
- Epilobium Canum
- Epilobium Ciliatum
- Epilobium Hirsutum
References
- https://www.fs.fed.us/wildflowers/plant-of-the-week/epilobium_pycnostachyum.shtml
- https://www.wildflower.org/plants/result.php?id_plant=epyp
- https://www.gardenia.net/plant/epilobium-pycnostachyum-denseflower-willowherb
