(Veitchii Boston Ivy, Japanese Creeper, Japanese Ivy)
Parthenocissus tricuspidata "Veitchii"
The Boston Ivy Vine or Japanese Creeper, a self-clinging climber, covers extensive areas quickly. The fact that it does not require growth supports and its striking red autumn colouring make it such a popular climber. Apart from the English Ivy, it is the "German's favourite child" for façade greening.
Sunny (full sun) to (semi-)shaded Position, will develop more beautiful autumn colours in the sun.
A vine with adhesive pads that cling onto nearly every surface. Yearly growth 1 - 2 metres. Foliage from May to October.
Flower and Fruit
Inconspicuous, tiny green-yellow flowers in early summer, then small blue-black berries, after defoliation, favourite bird food.
Summer pruning as needed, to restrain the vigorous growth habit, winter pruning as illustrated and described in photos.
The Boston Ivy, unlike other "wild grapes" usually has no need for any growth supports. However, in some cases and especially on wind-exposed walls, rope systems (see below) as Easy or Medium Support Systems to prevent collapsing may be required. In cases of very tall walls, Heavy or even Massive wire rope systems may be required. In very old specimens, the stem structure may need to be attached as per rope system 1010.
Boston Ivy can cause significant damage to buildings! In parts the plant grows in a light-shunning way, and, as the shoots increase their stem girth, can blast apart building elements, block roller-shutter boxes and lift roof shingles. Insufficient removal of foliage may also block roof gutters. A frequently asked question during the restoration of a façade is how to deal with the remaining adhesive roots of torn-off plants: the only solution is to burn them off / torch them and then repaint the wall!