Allium hollandicum
PERSIAN ONION Dutch Garlic
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Allium hollandicum is a bulb-forming perennial with scapes up to 90 cm (35 in) tall. It has long, flat, strap-shaped leaves up to 60 cm (24 in) long. The flowers are composed of many purple to reddish-purple star-shaped flowers appearing in late spring and early summer.
This popular cultivar -Purple Sensation- has gained the Royal Horticultural Society-s Award of Garden Merit. It prefers moist, fertile soil in full sun.
Type: Hardy perennial
Hardiness zones: 4-8
Height: 90cm
Location: Sun
Seeds per packet: 10
Surface sow as light aids germination. Water the seeds in. Leave them at room temperature for 5 weeks. This helps break the phytohormones which inhibit germination. They will not grow yet. Then a cooling period is required. Cover them with plastic and place in a fridge for 80 days. Be sure they stay moist. After the cold stratification period they are then brought back to a cool room (15C, 59F) for them to germinate. Germination is generally 30-90 days after the warming period, though some can take longer.
Ornamental use only. These seeds and/or plants are poisonous.
Allium hollandicum
PERSIAN ONION Dutch Garlic
- Unit price
- / per
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Allium hollandicum is a bulb-forming perennial with scapes up to 90 cm (35 in) tall. It has long, flat, strap-shaped leaves up to 60 cm (24 in) long. The flowers are composed of many purple to reddish-purple star-shaped flowers appearing in late spring and early summer.
This popular cultivar -Purple Sensation- has gained the Royal Horticultural Society-s Award of Garden Merit. It prefers moist, fertile soil in full sun.
Type: Hardy perennial
Hardiness zones: 4-8
Height: 90cm
Location: Sun
Seeds per packet: 10
Surface sow as light aids germination. Water the seeds in. Leave them at room temperature for 5 weeks. This helps break the phytohormones which inhibit germination. They will not grow yet. Then a cooling period is required. Cover them with plastic and place in a fridge for 80 days. Be sure they stay moist. After the cold stratification period they are then brought back to a cool room (15C, 59F) for them to germinate. Germination is generally 30-90 days after the warming period, though some can take longer.
Ornamental use only. These seeds and/or plants are poisonous.