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Description
Achillea Roseo-Alba, commonly known as the White Yarrow, is a flowering plant that belongs to the Asteraceae family. It is native to Europe and Asia but has been naturalized in many parts of North America. The plant typically grows to a height of 2 to 3 feet and has a spread of 1 to 2 feet. The White Yarrow produces an abundance of white flowers that are arranged in flat-topped clusters. The flowers bloom in mid-summer and continue through early fall. The plant’s leaves are fern-like and are often aromatic. They have a gray-green hue and are about 2-4 inches long.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Achillea |
Appearance
The White Yarrow is a herbaceous perennial that has a compact, bushy growth habit. It has a woody base and produces numerous stems that are erect and branched. The stems are covered with fine hairs and are often reddish in color.The plant’s flowers are the main attraction, and they are typically 1/4 to 1/2 inch in diameter. They are white in color and have five petals that surround a yellow center. The flowers are produced in large clusters that can measure up to 6 inches across.The leaves of the White Yarrow are long and narrow, with a feathery appearance. They are arranged alternately on the stem and are about 2-4 inches long. The leaves have a gray-green color and are often aromatic.
Care Guide
The White Yarrow is a hardy plant that requires minimal care. Here are some tips for growing and caring for this plant:Water: The White Yarrow is drought-tolerant and can survive in dry conditions. However, it will benefit from regular watering during prolonged dry spells.Fertilization: The White Yarrow does not require regular fertilization. However, you can apply a balanced fertilizer once a year in the spring to promote healthy growth.Soil: The White Yarrow prefers well-draining soil that is slightly alkaline. It can tolerate poor soil conditions and is often found growing in rocky or sandy soils.Sunlight: The White Yarrow requires full sun to thrive. It can tolerate partial shade, but the plant will produce fewer flowers.Hardiness Zones: The White Yarrow is hardy in USDA zones 3-9.
Common Pests & Diseases
The White Yarrow is relatively pest and disease-free. However, it can be susceptible to powdery mildew and rust if the plant is grown in humid conditions. The plant can also be attacked by aphids, spider mites, and thrips.
Habitat
The White Yarrow is native to Europe and Asia but has been naturalized in many parts of North America. It is often found growing in meadows, fields, and along roadsides. The plant prefers well-draining soil and is often found growing in rocky or sandy soils.
Question and Answer
Q: Is the White Yarrow deer-resistant?
A: Yes, the White Yarrow is deer-resistant.Q: Can the White Yarrow be grown in containers?
A: Yes, the White Yarrow can be grown in containers, but it will require frequent watering.Q: How often should I prune the White Yarrow?
A: The White Yarrow does not require regular pruning. However, you can prune the plant in the spring to promote bushier growth.Q: Can the White Yarrow be used for medicinal purposes?
A: Yes, the White Yarrow has been used for centuries for its medicinal properties. It is believed to have anti-inflammatory and antiseptic properties and can be used to treat a variety of ailments.
Related Plants
Here are some related plants in the Achillea genus:
- Achillea millefolium (Common Yarrow)
- Achillea filipendulina (Fern-Leaf Yarrow)
- Achillea ptarmica (Sneezewort)
- Achillea ageratum (Sweet Yarrow)
References
- https://www.gardenia.net/plant/achillea-roseo-alba-white-yarrow
- https://www.almanac.com/plant/yarrow
- https://www.gardeningknowhow.com/edible/herbs/yarrow/growing-white-yarrow.htm
- https://www.gardeningknowhow.com/edible/herbs/yarrow/common-yarrow-information.htm
