Ivy, or Hedera, is such a versatile climber, and a brilliant species for wildlife too. It's an evergreen plant that comes in many different varieties. Some foliage is variegated with creamy margins or splashes, some types have yellow, gold and even silvery highlights, whilst others are deep, glossy green. Ivy supports itself by means of suckers and therefore doesn't need to be tied into position, once it gets going. Check the variety for its vigour, certain types of ivy can keep growing and will cover an entire house!