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PlantSnap
Plant Care
Persian onion
(Allium hollandicum)
Also Known As
Persian onion, Dutch garlic, Grape hyacinth, Bluebell onion
About This Plant
Allium hollandicum is a bulbous perennial plant species that belongs to the Amaryllidaceae family. It is native to the eastern Mediterranean region and is widely cultivated as an ornamental plant. The plant produces tall stems with dense clusters of small, star-shaped flowers that bloom in late spring and early summer. The flowers are typically purple, but can also be pink or white.
Plant Care Instructions
Outdoor Size Range
24-36 inches (60-90 cm)
Light Requirements
Allium hollandicum prefers full sun to partial shade. It can tolerate some shade, but the flowers will not be as abundant.
Humidity Needs
Allium hollandicum prefers moderate humidity levels. It can tolerate dry air, but may benefit from occasional misting.
Fertilizing Schedule
Fertilize the plant in the spring with a balanced fertilizer. Avoid fertilizing in the fall, as this can encourage the plant to produce new growth that may be damaged by winter frost.
Pruning Guidelines
Allium hollandicum does not require pruning, but you can remove the spent flower heads to tidy up the plant and prevent it from self-seeding.
Common Pests and Diseases
Allium hollandicum is generally pest and disease-resistant, but may be susceptible to onion thrips and bulb mites. These pests can be controlled with insecticidal soap or neem oil.
Indoor Size Range
12-24 inches (30-60 cm)
Watering Schedule
The plant prefers well-drained soil and does not like to be over-watered. Water the plant deeply once a week during the growing season, and reduce watering in the fall as the plant goes dormant.
Temperature Range
The plant is hardy in USDA zones 5-8 and can tolerate a wide range of temperatures. It prefers cool to moderate temperatures and does not do well in hot, humid conditions.
Growing Season
Allium hollandicum blooms in late spring and early summer.
Growing Difficulty Level
Allium hollandicum is an easy plant to grow and is suitable for beginner gardeners. It is low maintenance and requires minimal care.
USDA Hardiness Zones
5-8
Did You Know?
Allium hollandicum is also known as Persian onion or Dutch garlic, but it is not actually related to either onions or garlic. It is a member of the Allium genus, which includes onions, garlic, and other bulbous plants.
