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PlantSnap
Plant Care
Green alkanet
(Pentaglottis sempervirens)
Also Known As
Green alkanet, Evergreen bugloss
About This Plant
Pentaglottis sempervirens is a species of flowering plant in the family Boraginaceae, native to Europe and western Asia. It is a herbaceous perennial plant with rough, hairy leaves and clusters of bright blue flowers in spring and summer. The plant can grow up to 3 feet (90 cm) tall and 2 feet (60 cm) wide.
Plant Care Instructions
Outdoor Size Range
Height: 1-3 feet (30-90 cm), Width: 1-2 feet (30-60 cm)
Light Requirements
Green Alkanet prefers full sun to partial shade, but it can tolerate shade.
Humidity Needs
Green Alkanet prefers moderate humidity levels, but it can tolerate dry air.
Fertilizing Schedule
Fertilize the plant once a month during the growing season with a balanced fertilizer.
Pruning Guidelines
Prune the plant after flowering to encourage bushy growth and remove any dead or damaged leaves.
Common Pests and Diseases
Green Alkanet is generally pest-resistant, but it can be affected by spider mites and aphids.
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
It has low to moderate watering needs and prefers well-draining soil. Water the plant when the top inch of soil feels dry to the touch.
Temperature Range
It can tolerate a wide range of temperatures, from -10°C to 30°C (14°F to 86°F).
Growing Season
Green Alkanet blooms from late spring to early summer.
Growing Difficulty Level
Green Alkanet is easy to grow and requires minimal care.
USDA Hardiness Zones
Green Alkanet is hardy in USDA zones 5 to 9.
Did You Know?
The leaves and roots of Green Alkanet have been used for medicinal purposes, including to treat wounds and skin conditions.
