lavender [Olympia]

Prefers well-drained, neutral to alkaline soil but will tolerate acidic conditions. Improve drainage on heavy soils as will not tolerate waterlogging. Potash will encourage flowering but high nitrogen feeds, or manure, will encourage floppy plants. See lavender cultivation for further advice

Pruning group 10, after flowering

Propagate by semi-hardwood cuttings; may not come true from seed

Cuckoo spit (froghoppers) and rosemary beetle may be a problem

May be susceptible to grey moulds