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Delonix regia

Delonix regia supplied from Thailand for landscape projects. Broad flat crown and scarlet flowers for parks and wide boulevards. Sizes and tolerance listed.

Pencil botanical study of Delonix regia
Delonix regia · architectural botanical study

Royal poinciana, flame tree · Fabaceae · Deciduous flowering tree

Real Delonix regia nursery stock supplied by Thai Botanic in Thailand
Delonix regia — real nursery stock in Thailand.

The most recognisable flowering tree in the tropics, and usually the one a client points at. A broad flat umbrella crown covered in scarlet-orange flowers at the start of the wet season, over fine ferny foliage.

Specification

Mature height10–15 m
Crown spread12–20 m — wider than tall
Caliper range supplied5–22 cm standard, measured 1 m above soil level. Larger by arrangement.
Root-ball diameter90–160 cm (indicative)
Growth rateFast
HabitDeciduous in a marked dry season
FloweringScarlet to orange-red, early wet season; large flat pods follow

Landscape use

Parks, resort and hotel grounds, wide boulevards, and feature planting where the crown can spread unobstructed. It works as a shade canopy as much as an ornamental — the flat crown covers a great deal of ground.

Specify it with the spread in mind — commonly wider than tall, so it wants a generous planting pit and open ground. Given that, the flat crown delivers shade across an area no upright tree will cover.

Site tolerance

DroughtHigh once established
SalinityModerate (indicative)
WindLow to moderate — brittle wood, loses limbs in storms
SoilWell-drained, wide range. Dislikes waterlogging.
HeatVery high — flowers best after a hot dry period
USDA zone10–12

Export notes

Supplied root-balled and wrapped. The wide crown is reduced for loading; it rebuilds quickly given the tree’s growth rate. Phytosanitary certification accompanies every shipment. See export and compliance, and how the root ball is built, wrapped and loaded for the container on our nursery site.


For available sizes and current stock in this species, message us on WhatsApp at +66 93 425 9892 or email contact@thaibotanic.com — or browse the species catalogue. This is one of the species we grow and supply regularly. If you are working to a programme, send the planting schedule and we will plan lifting and shipping around it. Where a design calls for something outside our usual range, we source it through the nursery network we have worked with for years, given reasonable notice.

Supply grades

GradeOverall heightClear trunkSpreadCaliper (min)Grown inRoot ball
Small1500 mm1000 mm750 mm30 mm40 L100% coco peat
Medium2500 mm1500 mm1500 mm50 mm100 L100% coco peat
Large4000 mm2000 mm2000 mm80 mm300 L100% coco peat
Extra large6000 mm2000 mm3500 mm100 mm600 L30% cleaned soil / 70% coco peat
Caliper is the trunk diameter measured 1.0 m above the root collar, and is the minimum each grade meets. Root balls are sized in proportion to the tree; larger balls can be prepared where a specification calls for them. Where a schedule specifies container size in litres rather than caliper, this conversion bridges the two.