Primula — 11 species

Primula encompasses hundreds of species ranging from woodland primroses to moisture-loving candelabra types like Primula japonica and the glandular-haired Primula obconica. Most prefer cool temperatures and partial shade, with consistently moist, organically rich, well-drained soil — never waterlogged. Water steadily to keep roots moist but reduce frequency in summer heat. Toxicity varies across the genus: Primula obconica, in particular, can cause contact dermatitis and gastrointestinal upset in pets. Always check each species before buying, and consult your vet if a pet has ingested any part.