Herbaceous Perennials

Yellow flowers stand tall and proud in summer. Good for planting in shallow streams or ponds as they need damp roots. Height 80 cm. Spread 60 cm.

The large rich-blue flowers appear From May to July and will grace any display. Good as cut flower too. Height 70 cm. Spread 30 cm

With its considerable height, the back of the border would be a good place for this purple blue Iris, where it will impress in summer. Height 120 cm. Spread 50 cm.