SK 3386 05 April 2022: 3 very high res. images. Location: Royal Garden Hyde Park , London Altitude: 30m. Date: 27 March 2022 Habit : Cultivated Initially I thought Rhododendron….. but leaves are very wrong. I believe it is a Ceanothus showing the developing flowers Yes, some cultivar as per https://www.rhs.org.uk/plants/63246/ceanothus-blue-mound/details http://apps.rhs.org.uk/planttrials/TrialReports/Ceanothus%202004-2007.pdf