Kalmia latifolia 'Galaxy'

Kalmia latifolia 'Galaxy'


unavailable Currently Unavailable

Flowering Month:
Flower Colour:
To -20 °C
Height After 10 Years:
Not Scented
Interesting Foliage:
Currently Unavailable
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3 litre
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Kalmia latifolia ‘Galaxy’ has wonderful burgundy star shaped flowers, five deeply separated lobes that have a small outline of white and a small ring of white colour in the middle. This deep separation of petals is unusual for Kalmias, this variety will make a large upright plant given time with a height of 150-175 cm in 10 years.

Kalmias are a medium sized evergreen shrub from south-eastern USA and Asian mountains where they typically grow under the canopy of tall trees. They are an under used shrub which start flowering at the end of May going on well into June extending the flowering season of most gardens. Kalmia’s come in a variety of colours from red to pink through to burgundy and out to white with may two tone options.

• Ideal for medium sized gardens
• Ideal position: fully sun to partial sun
• Ideal soil: pH 4.5 to 6
• Habit: vigorous upright habits
• Bred by: Richard Jaynes
• Hybridization date: pre 2000 (1984).
• Origin: USA
• Parentage: Kalmia latifolia Shooting star X Unkown

The Basics

Ideal soil

Acidic soil, good organic content, pH 4.5-6.0. Inkarho range of rhododendrons will tolerate soils up to pH7.5

Sun or Shade

Light dappled shade is best for most varieties.


Refer to hardiness rating. Give young plants protection.

Site Selection

Avoid close to trees, roots, invasive weeds, walls, hot patios, dry banks and waterlogged soils. Do not use weed matting or stone mulch.

Plant spacing

Use the height shown in 10 years as a guide to the distance between each plant. Allow room for plant to fill out. If planting closer for instant impact, be prepared to move plants after a few years.


  • 3 litre pot, dig in 10-20 litres of ericaceous compost.
  • 7.5 litre pot, dig in 20-30 litres of ericaceous compost.
  • 70-80cm specimen, dig in 60 litres of ericaceous compost.
  • 100-120cm specimen, dig in 120 litres of ericaceous compost.

Planting depth

Plant high in the ground, with the top of the rootball visible.


Slow-release ericaceous feed recommended in March and straight after flowering.


Recommended every few years.


The key ingredient! Keep moist all season, especially the critical time at end of June for flower bud initiation. Tap water is better than no water. Heavy dose at least once per week in dry weather.


Ensure good drainage in winter, especially with yellow flowering varieties. Avoid waterlogged sites.


Rhododendrons and Camellias: Not normally required. Tidy wayward shoots after flowering.

Evergreen azaleas and Bloombux can be clipped into a low hedge.

Magnolias and Acers: Formative pruning when young to shape into a tree or bush.


Remove old flower-heads, particularly on young or weak plants.

For further advice see here

Size Guide

Size guide

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