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Ceri studied horticulture at university and has spent her career editing gardening content. You shouldn't have favourites but she loves sweet peas!
Weeds and moss are adept at colonising the gaps in paved driveways and patios, and they can make these areas look a mess. There are sprays containing glyphosate and other herbicides that will kill them, but what if don’t want to use chemicals?
The Which? Gardening researchers trialled some alternative control methods to see which work best.
How our tests find you the best
We tested 12 ways to deal with weeds
We used them on both crazy paving and brick pavers.
Appearance
How weedy each plot looked a month after weeding.
Regrowth
The amount of regrowth on weeds dealt with previously.
Germination
The amount of newly germinated weed seedlings on each plot.
Only logged-in Which? members can view the garden irrigation systems test results below. Join Which? now to get instant access to our test scores and Best Buy recommendations below.
| Product name | Price | Overall rating | Initial effort on brick paving | Initial effort on paving slabs | Average effort on brick paving (months 2-5) | Average effort on paving slabs (months 2-5) | Average regrowth and germination on brick pavers | Average regrowth and germination on paving slabs | Average weedy appearance on brick pavers | Average weedy appearance on paving slabs |
|---|---|---|---|---|---|---|---|---|---|---|
| BOSTIK Cementone Wide Jointing Compound 15kg | SQUIRREL_TEXT_50020583 | |||||||||
| DARLAC DP360 Telescopic Weed Knife | SQUIRREL_TEXT_50020425 | |||||||||
| DRAPER Ash Handle Garden Tool Patio Weeder 300mm | SQUIRREL_TEXT_50020426 | |||||||||
| FISKARS Xact Weeding Knife | SQUIRREL_TEXT_50020577 | |||||||||
| Hand fork | SQUIRREL_TEXT_50020424 | |||||||||
| SIKA FastFix Paving Jointing Compound 15kg | SQUIRREL_TEXT_50022731 | |||||||||
| SPEAR & JACKSON Elements Dandelion Weeder | SQUIRREL_TEXT_50020578 | |||||||||
| WEEDOL Path Clear Weedkiller 1L Ready To Use (RTU) a | SQUIRREL_TEXT_50020579 | |||||||||
| WOLF-GARTEN Multi-Change Weeding Brush | SQUIRREL_TEXT_50020581 |
Overall rating Ignores price and is based on: regrowth and germination (pavers and paving combined) 30%, weedy appearance of plots monthly 30%, initial effort (pavers and paving combined) 20%, average effort monthly (pavers and paving combined) 20%.
Make your garden better than ever! Our product tests and advice help you create the garden you want, all year for only £36.75 that’s 25% off.
Buy and saveSave 25% – was £49, now £36.75 for a year, offer ends 30 April 2026.
Try the best weed suppressing membranes