What Are the Sunlight Requirements for Prostanthera 'Mint Royale'?
Full sun

Prostanthera 'Mint Royale' · Prostanthera 'Mint Royale'
Grow under glass in a loam-based compost in full light. Grow outdoors only in a frost-free environment with moist but well-drained soil in full sun. Prune after flowering; hard pruning may be detrimental
Full sun