Rosy talks through her favourite tall grassePlant list:Miscanthus sinensis 'Malepartus' Zones 94Pennisetum alopecuroides 'Hameln'Zones 96Molinia caerulea subsp. caerulea 'Heidebraut'Zones 95Calamagrostis x acutiflora 'Karl Foerster'Zones 107Panicum virgatum 'Heavy Metal'Zones 94