Pennisetum 'Red Buttons' is a clumping deciduous grass that produces soft, feathery red-purple flower spikes in the autumn. It should be planted in a sheltered site in full sun with well-draining soil. Pennisetums are considered to be a tender grass, and so sometimes will not survive severe frosts during the winter months. Height approx 1m. As it is a deciduous grass, it should be cut back to ground level in February to encourage strong new growth from March/April onwards.