California tree poppy
A most sought after plant with large white poppy-like flowers. Romneya coulteri has huge, floppy white flowers in summer, and grey-green foliage. It prefers poor, well-drained sandy or gritty soil. Once established, it needs plenty of space as it can spread to be over 3m wide and a couple of metres tall. It will not tolerate damp or wet soil. Can be cut down to soil level in early spring after one or two years. Not always an easy plant to establish, but vigorous and easy if planted in the right place. 3 litre container.