Allium hollandicum
Giant flowering onion
Also known as Allium aflatunense
- Height × spread
- 1m – 1m × 0.3m – 0.3m
- Position
- Full sun
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
Impressive bulb flower with large purple pom poms sitting atop thick stems, like giant lollipops. Best grown in groups for impact or between other plants for spots of colour through the border. Flowers May to June, attracting the bees. Grows to a height/spread of 1m x 0.3m.
- Flower colour
- Purple
- Foliage colour
- Green
- Variegated
- No
- Scent
- No
- Shape
- Round
- Height
- 1m – 1m
- Spread
- 0.3m – 0.3m
- Season of interest
- Spring, Summer
- Evergreen
- Deciduous
- Garden style
- Wild flower meadow, Small scale garden, Seaside garden, Prairie garden, Gravel garden, Exotic garden
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- Loam (normal)
- Soil pH
- All types
- Drainage
- Well drained soil, Drought resistant
- Winter hardiness
- Varies, most are hardy
- Borders & containers
- Borders
- Use for
- Deer resistant, Rabbit resistant, Bee attraction, Butterfly attraction
- Maintenance
- Easycare – low/no maintenance
- Hazards
- Yes, some poisonous
AutumnNow
Autumn · Planting
Remove offsets to create new plants
Offsets are small plants or shoots that develop around the parent plant. They should have developed a root system of their own before they are detached. They can be planted directly, or grown in pots if so small they could be 'lost' in the garden.
Spring
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring-Autumn · Outdoors
Water during dry periods
For plants in the ground, when there has been little or no rain for a period of 7-10 days and the soil is dry, give it a deep watering and repeat weekly until there is a downpour of rain. Check plants in pots more frequently, especially in hot weather.
Found in
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