Climbing herbaceous perennial, spreading by creeping underground stems which like to congregate near to retaining walls if present, and sometimes by seed. It is very invasive and will smother more delicate ornamental plants if allowed. An extract of the sap acts as a laxative, but is not recommended due to an unpredictable result! (Jalap Bindweed and Scammony Bindweed used officially)
Flowers from June to September, rather attractive, large white trumpets without any scent.
To remove bindweed, first consider where it is growing - cultural control is difficult if it is among other plants. Dig up as much of the white roots as possible, though this can be difficult if they are entangled in the roots of plants as the smallest remnant will
re-grow. (Full details of dealing with roots is given on theWeed Removal page). Hoeing repeatedly will exhaust the white fleshy underground
stems and should weaken it. If it is growing near to a boundary, it will most likely be on both sides so it will have to be removed on the other side as well. A barrier of thick plastic buried to about 40 cm should prevent ingress of the
creeping stems, but it can still scramble through a fence or hedge.
Weedkillers : - A systemic herbicide like Glyphosate is the best option. When it's growing through other plants untangle as much as possible, lay on a plastic sheet or drape it over some pea sticks before treating. After digging up as much as possible, train any regrowth up a cane to allow enough leaf area to develop for treatment. Crushing can help the uptake of the herbicide. One method of application is to use a sponge or a wollen glove placed over a rubber one to soak up the herbicide then clutch the plant as it grows up the support.
Follow these links for further details on Weeds, Weed Removal and Weed Prevention.