Here we see the enormous size of these wisteria plants, the trunks almost as wide as the columns. There is more than one variety planted along this pergola. Some years back one of the pillars was broken in two by the strength of the wisteria - but again, it was its very strength that prevented the pillar actually falling. Recently William had it replaced - an exceedingly delicate operation.
In the past, William has given 'wisteria parties' in April - a wonderful way to admire these ancient plants in bloom.