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- The plant is native to western and central Mediterranean and was originally introduced to the UK in 18th Century.
- Spread of the plant is mainly through seed. Once established the plant forms dense clumps of growth. The white bulbs can also reproduce by vegetative propagation and can be spread by movement of soils.
- All parts of the plant are edible and have a garlic smell.
- A perennial herb, with white bulbs. The leaves are green, hairless and narrow with 2-5 leaves per bulb. Leaves die back once the plant has flowered around May - June.
- Flower stems measure 10 – 45cm in height with white flowers, with a strong green stripe, similar in shape to bluebells. Stems have a triangular cross section giving rise to its common name.
- The plant prefers shadier areas but will grow in numerous habitats.
- Infestations can be removed mechanically by digging, this is easiest done in spring when surface vegetation is present, ensuring that all plant material and bulbs are removed. This may need to be followed by mechanical cutting over a number of years to exhaust the seed bank.
- Waste materials containing the Three cornered garlic are considered ‘controlled’ waste and must be disposed of appropriately.
- Herbicide application can by successful at reducing the spread of the plant. Applications of herbicide should be made in spring before flowering.
- Multiple applications may be required due to the persistence of bulbs and of the soil seed bank
When treating large areas, a suitable grass and forb mix should be sown to prevent bare ground and colonisation of other unwanted species.
If you have concerns over Three cornered garlic species on your land, if you are unsure of your legal responsibilities, or, if you would like a quotation for control, please contact one of our specialist surveyors. Treatment costs start at £380.00 + VAT.