Clematis — 44 species

Clematis is a genus of vigorous, largely climbing perennials prized for spectacular blooms across a huge range of colours and seasons — from the two-toned 'Nelly Moser' to the deep violet 'Jackmanii'. They thrive with their roots in cool, moist, well-drained soil and their tops in full sun or light afternoon shade; deep, thorough watering rather than frequent shallow irrigation suits their roots. All Clematis species are toxic to cats and dogs: the irritant glycoside protoanemonin causes salivation, vomiting, diarrhea, and mouth ulceration on ingestion.