Australian native thyme

Prostanthera incisa

Aromatic eastern-Australian shrub (a cut-leaf mint bush) whose leaves are used as a native culinary herb.

Hardiness ratings

Australian native thyme hardiness across the four zone systems
SystemRatingTemperature rangeHow to read it
USDA hardiness zone Zone 9–10 −6.7 °C to 4.4 °C Plant tolerates down to this zone
RHS hardiness rating H3 −5 °C to 1 °C Plant needs at least this level of cold tolerance
Canadian plant hardiness zone Zone 9 −1 °C and warmer Plant tolerates down to this zone
Australian (ANBG) zone Zone 3–6 −5 °C to 15 °C Plant tolerates down to this zone

Growing notes

  • Strongly aromatic mint-and-thyme-scented leaves used for flavouring
  • Fast-growing but relatively short-lived; tip-prune to keep it dense
  • Needs good drainage; tolerates light frost

Categories

Related plants

Cross-check Australian native thyme against your zones

Reference

Australian native thyme on Wikipedia