Three-cornered garlicThree-cornered garlic dug out
Professional invasive plant control at fair, fixed prices.
Three-cornered garlic spreads by bulbs and seed and can take over borders and lawns. We dig out the bulbs and handle the soil carefully, so it does not spread further.
- Free in-person survey with a written report and photos
- Fixed price quotation, plus VAT. No hidden fees
- Minimum 5-year guarantee included on every job, available for up to 20 years
- Waste removed by a registered waste carrier
Send us a photo for a free IDBook your free survey
Tell us what you are seeing and add a photo if you can. A surveyor will get back to you.
Professional invasive plant control at fair, fixed prices
Qualified surveyors, proven methods and a written guarantee, at fair, fixed prices plus VAT.
- 👥A lean, owner-led team
- 🏢No national overheads or call centres
- 🎓A qualified surveyor on site
- 🧪Recognised methods, trained people
- 🛡A written guarantee and management plan
What is three-cornered garlic?
Three-cornered garlic (Allium triquetrum), sometimes called three-cornered leek, is a bulb from the Mediterranean that flowers in spring. It spreads by seed and by small bulbs that are easily moved in soil.
It forms dense clumps that crowd out other spring plants, and it is often spread by moving soil or garden waste.
How to recognise it
- Stems that are triangular in cross-section
- White, bell-shaped flowers with a thin green stripe, in spring
- Long, narrow, strap-like leaves
- A strong garlic or onion smell when crushed
Why it needs dealing with
Early action avoids further spread, damage, stress and cost.
Bulbs spread easily
Small bulbs are moved around in soil, on tools and in garden waste.
It crowds out other plants
Dense clumps can smother spring flowers and borders.
It returns each spring
Any bulbs left behind come back the following year.
How we deal with three-cornered garlic
From the free survey to a guaranteed result, in four steps.
Free survey
In person. Plant identified, written report with photos and a fixed price quotation, plus VAT.
Your plan
We dig out the bulbs and the soil around them, take care not to spread soil to clean areas, and follow up in the next growing season. Waste is removed by a registered waste carrier.
3The work
Biosecurity measures on site. Waste removed by a registered waste carrier.
4Guarantee & follow-up
Minimum 5-year guarantee included, available for up to 20 years, plus follow-up visits.
Is there a law about it?
Three-cornered garlic is listed on Schedule 9 of the Wildlife and Countryside Act 1981 in England and Wales, which makes it an offence to plant it or otherwise cause it to grow in the wild. Having it in your garden is not in itself an offence, but cuttings, roots and soil containing it should be disposed of responsibly.
What our clients say
Read our reviews:GGoogleTTrustpilotCCheckatrade
He Identified the species and produced a detailed report with photos, all free of charge.
M O · GoogleHighly professional, straightforward & honest. A pleasure to deal with.
Naomi · TrustpilotFrom consultation with Connor to the completion of all work carried out I have experienced only high levels of professionalism and support.
Lesley B. · GoogleGood advice prior to works commencing, kept to agreed timescales, punctual and tidy, helpful and obliging during works.
Quentin C. · TrustpilotA guarantee on every job. Always included.
Minimum 5-year guarantee included on every job, available for up to 20 years. It is part of the price, never an optional extra.
- Guarantee certificate issued when the work is complete
- Management plan evidencing everything done on site
- Monitoring visits until growth has stopped
- Free call-outs if anything comes back in the treated area
- Paperwork you can share with buyers, lenders and neighbours
Frequently asked questions
Straight answers. Anything else, just ask.
Can I compost three-cornered garlic?
No. Bulbs and seeds can survive composting and spread to new areas.
When is the best time to remove it?
In spring, when it is easy to see. We dig out the bulbs and follow up the next season.
Is the survey really free?
Yes. We visit in person, identify the species and send you a written report with photos and a fixed price quotation, with no obligation. Formal CSJK (Certified Surveyor of Japanese Knotweed) survey reports, which confirm whether invasive plants are present (for example for a property sale or mortgage), are £240 (£200 + VAT).
Are your prices fixed?
Yes. Quotations are fixed price, plus VAT, with no hidden fees or subscriptions.
Can I just send a photo?
Yes. Add a photo to the enquiry form or send it on WhatsApp and we will identify the plant for free.
How do you keep your prices competitive?
We are a lean, owner-led team with no national overheads or call centres. Your site is surveyed in person by a qualified surveyor, we use recognised methods, and every job comes with a written guarantee and management plan. Every quote is fixed, plus VAT, after a free survey.
Book your free survey
Tell us what you are seeing and add a photo. A surveyor will get back to you with next steps.
- Free in-person survey with a written report and photos
- Fixed price quotation, plus VAT. No hidden fees
- Minimum 5-year guarantee included on every job, available for up to 20 years
Send us a photo for a free IDRequest a free survey
Tell us what you are seeing and add a photo if you can. A surveyor will get back to you.
Request my free survey