Poinciana

Delonix regia, the flame tree that turns whole summers scarlet, and one of the largest canopies you can plant on a Brisbane property.

Delonix regia · Also known as Royal Poinciana, Flame Tree

The poinciana is the tree that stops traffic in December, an enormous flat-topped umbrella of scarlet-orange flowers that has come to mean summer across subtropical Queensland. Most people know it as a poinciana or flame tree, and one mature specimen can shade an entire backyard on its own.

It is magnificent and it is genuinely large, so the only real question is whether your block can host it: this is a tree for acreage and generous gardens, not a courtyard, and planting one honestly means planning for the ten-metre-wide canopy it is destined to become.

In a Brisbane garden

A poinciana is one of the biggest single decisions you can make in a garden, because a mature tree spreads wider than it stands tall and casts dense shade over everything beneath it. That umbrella is the whole point on a hot Brisbane afternoon, but it also means grass struggles under it and any planting has to suit dry, root-filled shade, so we design the space beneath the canopy as its own quiet room rather than pretending the lawn will survive there.

The roots need naming plainly because they are the reason poincianas belong on space: they run near the surface and buttress out from the trunk, and over decades they will lift paving, crack a thin slab and go looking for drains, so this is not a tree to plant near the house, the driveway, the pool or the boundary. Add long summer leaf drop and heavy woody seed pods to the picture, give it fifteen metres of clearance on open ground, and a poinciana is a joy rather than a running battle.

How we design with it

The poinciana is a true acreage tree, and on the right property it becomes the defining feature the whole acreage landscape design is composed around, a single canopy you site for its mature spread and then never crowd. We place it well out in open ground where its shade falls on lawn and gathering space, not on the roof or the pavers.

In a larger Brisbane garden design we treat the ground beneath as a designed shade garden of tough, drought-tolerant understorey rather than a losing battle with turf, and we set generous mulched beds over the surface roots so the mower stays clear. Given the room it demands, it's one of the most rewarding shade trees in the subtropics; given a suburban courtyard, it's a mistake you'll be paying for in twenty years.

Where we write about poinciana

Common questions

Got the acreage for a proper flame tree?

We're currently taking on new landscape design clients across Brisbane. Reach out for a personalised quote, whether you're a homeowner or a design professional.