text: Echium candicans (Pride of Madeira) - BBC Gardeners World Magazine
  Tall spikes of intense blue blooms are borne on strong branching stems in spring and summer. Despite its origins it's hardy to -5° and can survive British winters unless grown in wet soil. A short-lived perennial, it's typically grown as a biennial in the UK. Yet, as in its native Madeira, in milder regions it can grow into a small tree, and can self-seed readily.
  Grow Echium candicans in well-drained soil in a sheltered site in full sun. In cooler regions you may need to protect the roots from frost or move under glass for winter – collect seed after flowering as an insurance against winter losses. Take care when handling as the sap can cause skin irritation and is toxic if eaten.
  How to grow Echium candicans
  Echium candicans and wildlife
  Echium candicans is known for attracting bees, butterflies​/​moths and other pollinators. It has nectar/pollen rich flowers.