Albizia julibrissin 'Rosea' at Roath Park Botanic Garden

Albizia julibrissin 'Rosea' 0

Albizia julibrissin 'Rosea'
late July 2018

Grid reference ST 18478 79058
Common name Pink silk tree
Common name Pink siris
Common name Mimosa tree
Alternative name Albizia julibrissin f. rosea
Origin South Asia to Korea
Deciduous Yes
Status Rather rare
Planted Approx 2007
Height 5.5M August 2016
Girth 39cm August 2016
Reference 470

This tree is on the west species border just north of the walk through to the Rose Garden.

Albizia julibrissin 'Rosea' bark

Albizia julibrissin 'Rosea' bark
late August 2016

Albizia julibrissin 'Rosea' leaf1

Albizia julibrissin 'Rosea' leaves seen from below
late August 2016

Albizia julibrissin 'Rosea' leaf2

Albizia julibrissin 'Rosea' leaves
late August 2016

Albizia julibrissin 'Rosea' flower

Albizia julibrissin 'Rosea' leaves & flower
late August 2016

Albizia julibrissin 'Rosea' flower2

Albizia julibrissin 'Rosea' flower
late August 2016

General tree description

Albizia julibrissin 'Rosea' is a small, spreading tree growing up to 8 metres tall. It has smooth, grey bark and large, light green bipinnate leaves. These are up to 45cm long and 25cm broad, divided into six to twelve pairs, each comprising twenty to thirty pairs of leaflets. The leaflets are oblong, up to 1.5cm long and 3mm broad. In late summer, lasting into autumn, there are clusters of bright pink fluffy flowers, followed by 15cm brown pods containing seeds.

Also known as Albizia julibrissin f. rosea, this tree is a form of Albizia julibrissin, of which it was considered a cultivar in the past. It is hardier and has deeper red flowers than the type, which needs maximum summer warmth to grow well.