Mexican Heather, False Heather
(Cuphea hyssopifolia 'Magenta Border')
Another neat plant from Australia, bred by Outback Plants.
This beast has bright magenta flowers with deep green, dense and compact foliage.
A typical Australia plant, that thrives in a drier area, which coincidentally, makes up the majority of that big Island.
Zone: 8 Treat as Annual
Height: 15cm (6")
Spread: 38cm (15")
Habit: Upright and Mounded
Exposure: Full Sun to Part Shade
Moisture: Just Moist, Never Wet
Magenta Border is highly recommended for container usage, because most containers normally have great drainage. Actually, it also can be used in flower beds, as long as you plant in a fast draining soil, because this plant wants to be kept on the slightly dry side.
--- and you can prune it lightly to maintain shape!