Eremurus robustus The tall flower appear late spring to early summer Pacific Bulb Soci attention to drainage is critical need sun and fertile soil, and without cool to cold winter temperatures they do not flower well. The rootstock should be planted shallowly and care therefore needs to be taken to protect it and the emerging shoota can be quite tall
1 Salvia nemorosa 'Caradonna’ from the mildly aromatic silvery green leaves to the violet flower spikes with purple stems. Bees love the flowers that stay looking sharp long after the petals fall, thanks to papery bracts that hold their colour. Dead-heading – either little and often or in one go – encourages new flowering side-shoots till October. 'Caradonna’ loves sun; use it as a purple ribbon through late season grasses or, at 18in (45cm), it is the perfect centrepiece for a pot.