Syncolostemon macranthus is a much branched aromatic shrub that reaches heights between 1-2.5m tall. The stems are hairy and the rough leaves about 20-45x12-20mm large have faintly toothed margins and short stems. It bears pink or purple flowers about 25-30mm in diameter during summer normally between November and May and are borne in groups of 4-6 flowers in branched inflorescence of about 100-200mm long.
Syncolostemon macranthus is a hardy shrub ideal for a mixed shrubbery and is a lovely flowering specimen. It prefers a cooler climate. Cut back early summer to keep it tidy.