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Hairy bitter cress

By Gardeners' World on 19/10/2011 17:34:29

Left unchecked, hairy bitter cress can quickly spread to infest the whole garden. This weed can complete its lifecycle in three to four weeks to disperse thousands of seeds, all of which can germinate to release their own seeds in quick succession


Field horsetail

By Gardeners' World on 19/10/2011 17:36:06

Field horsetail is also known as marestail. Once established, it has roots that extend to 2m deep, and spreads by means of creeping rhizomes. The plant produces light-brown stems in late spring, topped with cone-like structures


Japanese knotweed

By Gardeners' World on 19/10/2011 17:37:41

. It spreads by sprouting from thick, woody rhizomes, and can grow 1.2m in one season. Winter is the only time of year that offers a reprieve, but for the rest of the year it's a plant that needs tough handling as soon as it appears. This weed is especially


Vinca or periwinkle

By Gardeners' World on 19/10/2011 18:00:10

-treat the plant using a total weedkiller such as glyphosate. Avoid spraying on a windy day and near other desirable plants. all over the gardenspring to autumnMore advice on removing weedsHairy bitter cressYellow sorrelChickweedGround elder


Creeping thistle

By Gardeners' World on 19/10/2011 17:56:38

as soon as it appears. It's armed with extremely sharp stems from tip to ground, so don't tackle it without a sturdy pair of gloves. Creeping thistle is a rampant weed that's spread via wind-blown seeds, as well as roots that can grow 6-12m per year


Clover

By Gardeners' World on 19/10/2011 16:32:49

Clover, most commonly Trifolium repens, is a perennial weed with shamrock-like leaves and fragrant white flowers. It colonises gardens and lawns using runners that fix into the ground, and competes with other plants for space to grow. Once it


Creeping buttercup

By Gardeners' World on 19/10/2011 16:57:09

, in the worst case scenario, lift the turf and replace it.In lawns, you can get rid of the weed using a lawn weedkiller, such as a 2, 4-D-based herbicide. Apply it in cool, moist and calm weather when there's least risk of accidentally spraying nearby garden


Mind-your-own-business

By Gardeners' World on 19/10/2011 17:40:43

or lawn, although it's particularly prevalent in the crevices of stone walls and in damp conditions. A slow-growing weed with tiny flowers and leaves. Its stems root as they spread, forming a thick mat that leaves little space for other plants to grow


Self-heal

By Gardeners' World on 19/10/2011 17:45:17

Self-heal (Prunella vulgaris) is a tenacious perennial weed that loves lawns and will stick close to the ground in order to survive even the closest mowing - it will even flower on 3cm-high flower spikes to ensure survival of its species. It spreads


Speedwell

By Gardeners' World on 19/10/2011 17:49:11

. In lawns, increase the height of the cut so that it is shaded out by the grass and ensure the sward is dense and healthy so it can compete with the weed. In lawns, spot-treat the weed using a weedkiller such as a 2,4-D-based herbicide in spring or early


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