Berteroa incana
Hoary Alyssum
Berteroa incana, commonly known as hoary alyssum, is a plant in the mustard family that is most often found in dry, disturbed growing areas. It is native to parts of Europe and Asia, and has become a recognized invasive species in North America. Hoary alyssum blooms every year, producing clusters of small white flowers on long green stalks. Although generally non-toxic to humans and pets, it contains a compound that it toxic to horses if ingested.
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Full sun to partial shade
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Occasional watering
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Frost Hardy: 23F (-5°C)
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Free draining
Common name
Hoary Alyssum
Latin name
Berteroa incana
type
Biennial or short-lived perennial
family
Brassicaceae
ph
6.0 - 10.0 Acid - Neutral
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Light
Full sun to partial shade
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Frost
Frost Hardy: 23F (-5°C)
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Soil
Free draining
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Water
Occasional watering
Plant & bloom calendar
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Best time to plant
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When the plant will bloom
full grown dimensions
0.80 M
0.80 M
Berteroa incana
Berteroa incana, commonly known as hoary alyssum, is a plant in the mustard family that is most often found in dry, disturbed growing areas. It is native to parts of Europe and Asia, and has become a recognized invasive species in North America. Hoary alyssum blooms every year, producing clusters of small white flowers on long green stalks. Although generally non-toxic to humans and pets, it contains a compound that it toxic to horses if ingested.
Blooming
From Early Spring TO Mid Autumn
Hoary alyssum blooms annually from the early springtime months well into the autumn. Its white blooms grow in clusters, and have four petals on each flower head, although notches in each petal allow them to resemble eight.
Disperse Seeds
From Early Spring TO Late Spring
Sow seeds in dry soil, preferably in a contained flowerbed away from other plants.