Advanced Search Filters

Plant Type
Hardiness Zone
Heat Zone
Sunset Zone
Function
Sun Exposure
Soil Moisture
Water Requirement

MUSSAENDA 'Queen Sirikit'

Image of Mussaenda 'Queen Sirikit'

James Burghardt

Family

Rubiaceae

Botanical Name

MUSSAENDA 'Queen Sirikit'

Plant Common Name

Lady Flower

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Sometimes called a pink-flowering summer poinsettia, Queen Sirikit satinbush bears small starry yellow flowers that are overpowered by showy light pink, rose-edged modified leaves. Upright, multi-branched and mop-headed in its bushy canopy, it is a hybrid semi-evergreen shrub that is tender to frost. Named after the queen of Thailand, 'Queen Sirikit' is the result of crossing the west African Mussaenda erythrophylla with a selection of the Filipino Mussaenda philippica.

The smooth branches bear softly hairy, medium green leaves that are oval and deeply veined. In the warmth of mid-spring into early summer, branch tips bear the trumpet-shaped small yellow flowers that each have five starry lobes. Surrounding these true flowers is a irregular mophead of colorful modified leaves (calyces) that are a powdery light pink with deep rose edges. After butterflies visit the flowers, seeds drop uneventfully while the showy calyces remain for months. Evergreen only in the warmest tropical areas, it can become fully deciduous if temperatures in winter are cool or seasonal drought occurs.

Grow Queen Sirikit satinbush in partial sun to dappled shade in an acidic soil that is moist but well-draining. Humus-rich sands are ideal. The irregular upright form of this shrub is best incorporated into a tropical mixed border where other plants can visually and physically support this plant. Heavy downpours or winds can cause branch collapse; prune with care in the wet rainy season as some rot and dieback may occur if pruning cuts are drastic. It also grows nicely in a container in frost-free locations.

Characteristics

  • AHS Heat Zone

    12 - 10

  • USDA Hardiness Zone

    10 - 15

  • Sunset Zone

    H1, H2, 20, 21, 22, 23, 24

  • Plant Type

    Shrub

  • Sun Exposure

    Partial Sun, Partial Shade

  • Height

    8'-18' / 2.4m - 5.5m

  • Width

    4'-8' / 1.2m - 2.4m

  • Bloom Time

    Late Spring, Early Summer, Summer, Late Summer, Early Fall, Fall, Late Fall, Early Winter

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Acidic

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Upright/Erect

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Yellow, Light Pink, Rose

  • Flower Color Modifier

    Multi-Color

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Foliage Color (Winter)

    Green

  • Bark Color

    Tan, Sandy Brown

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    Semi-Evergreen

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Container, Feature Plant, Mixed Border, Tropical

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    No