Beautiful plant my friend and Baeckea gunniana is an evergreen Shrub growing to 1.5 m (5ft) by 2 m (6ft).
It is hardy to zone (UK) 9. It is in leaf all year. The species is hermaphrodite (has both male and female organs).
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist soil.

Cultivation details
Requires a position in full sun in a fertile moisture retentive well-drained soil[200]. This species is not very hardy in Britain, though it should survive outdoors in the very mildest areas of the country, especially if given a sheltered position. Plants in Australian gardens tolerate temperatures down to at least -7°c[157], but this cannot be translated directly to British gardens due to our cooler summers and longer, colder and wetter winters. The leaves emit a powerful camphor-like scent when handled[245]. This species is very closely related to and perhaps synonymous with B. utilis[157]. A rock garden plant[157], it seems to maintain its prostrate habit even when grown at lower altitudes[157].

Propagation
Seed - surface sow in spring or autumn in a greenhouse and keep the compost moist until germination takes place. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Cuttings of half-ripe wood with a heel, July/August in a frame[200].

Thank you @ctrl-alt-nwo

A source of information: https://pfaf.org/user/Plant.aspx?LatinName=Baeckea+gunniana