Acanthus spinosus
TAXONOMY
FamilyAcanthaceae
GenusAcanthus
Zone6
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Plants of the World OnlineABOUT
Acanthus spinosus, commonly known as Spiny Bear's Breech, is a perennial plant native to the Mediterranean region. It is known for its deeply lobed, spiny leaves and tall flower spikes with white and purple flowers. This plant prefers temperate climates and can tolerate a range of soil types, making it a versatile addition to gardens.
ALSO KNOWN AS
Spiny Bear's Breeches
Acanthus spinosissimus
Acanthus spinulosus
OVERVIEW
WaterMoist
SoilLoamy
LightIndirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
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DETAILS
Care Instructions
Acanthus spinosus thrives in bright, indirect light and moderate temperatures. It prefers soil that dries out partially between waterings and benefits from moderate humidity. Regular watering and occasional feeding with a balanced fertilizer will help maintain its health.Soil
Acanthus spinosus prefers well-draining loam soil with a slightly acidic to neutral pH. Ensure the soil has good drainage to prevent waterlogging, which can lead to root rot. Adding organic matter can improve soil structure and fertility.Fertilizer
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant during the growing season, typically in spring and summer, to promote healthy growth and flowering. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flowers.Repotting
Repot Acanthus spinosus every 2-3 years or when it outgrows its container. Choose a pot that is slightly larger than the current one and ensure it has good drainage. Gently remove the plant from its old pot, loosen the roots, and place it in the new pot with fresh soil.Propagation
Acanthus spinosus can be propagated by division or from seed. The best time to divide the plant is in early spring or fall. Carefully dig up the plant and separate the root clumps, ensuring each division has a portion of the root system. Replant the divisions in well-prepared soil.Pruning
Prune Acanthus spinosus in late winter or early spring to remove dead or damaged leaves and to shape the plant. Cut back the flower spikes after they have finished blooming to encourage new growth and maintain a tidy appearance.Toxicity
Acanthus spinosus is not known to be toxic to pets or humans. However, the spiny leaves can cause minor skin irritation if handled without care. It is advisable to wear gloves when pruning or handling the plant.Additional
Acanthus spinosus can be susceptible to powdery mildew and root rot if not properly cared for. Ensure good air circulation around the plant and avoid overhead watering to minimize the risk of fungal diseases. Mulching around the base of the plant can help retain moisture and suppress weeds.REVOLUTIONIZE YOUR PLANT CARE
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