• Close-up of vibrant pink Vulcans Flame flowers with green leaves
1 1

Rhododendron Vulcan’s Flame

Rhododendron Vulcan’s Flame

Evergreen Rhododendron

$20.00
$20.00
Sale Sold out
Taxes included.
Pot Size/Grade

Rhododendron 'Vulcan's Flame' is an outstanding evergreen rhododendron renowned for its vivid scarlet-red flowers, creating a breathtaking display in mid to late spring. The large, well-formed flower trusses appear in abundance above glossy dark green foliage, making this variety a true showstopper in any garden.

Its bold colour and dense evergreen habit make 'Vulcan's Flame' an excellent choice as a feature shrub or as part of a mixed rhododendron collection. Hardy, reliable and easy to grow, it thrives in New Zealand's temperate climate and brings dramatic colour to shaded landscapes year after year.

Why You'll Love Rhododendron 'Vulcan's Flame'

  • Brilliant scarlet-red flowers with exceptional colour intensity
  • Large, impressive flower trusses
  • Evergreen foliage provides year-round structure
  • Reliable and prolific spring flowering
  • Outstanding feature shrub
  • Excellent frost hardiness
  • Attracts bees and beneficial pollinators
  • Perfect for woodland, cottage and formal gardens


  • Expected 5 Year Height 1.5 M Width 1.5 M

Is Rhododendron Vulcan’s Flame suitable for my garden?

Rhododendron Vulcan’s Flame is best suited in a position that gets

  • Partial shade

Rhododendron Vulcan’s Flame is

  • Wind Tolerant
  • Frost Tolerant
  • Flowering
  • Cold hardy
  • Evergreen

Rhododendron Vulcan’s Flame will thrive in soil that is

  • Acidic
  • Nutrient rich
  • Free draining

How to establish your Rhododendron Vulcan’s Flame?

Plant Rhododendron 'Vulcan's Flame' in part shade to filtered sun.

For the best results:

Morning sun with protection from hot afternoon sun is ideal.
In cooler parts of New Zealand, it will tolerate more direct sunlight provided the soil remains evenly moist.
Plant in a sheltered position away from drying winds.

How to maintain your Rhododendron Vulcan’s Flame once established?

Rhododendrons thrive in acidic, free-draining soil rich in organic matter.

For optimum growth:

Maintain a soil pH between 4.5 and 6.0.
Improve the soil with composted pine bark or leaf mould before planting.
Mulch annually with pine bark to retain moisture and suppress weeds.
Avoid lime and alkaline fertilisers.

Good drainage is essential, as rhododendrons dislike waterlogged roots.

Water regularly during the first growing season while the plant establishes.

Water during:

Extended dry periods.
Summer while flower buds are developing.
Hot or windy weather.

Keep the soil evenly moist without allowing it to become saturated.

Feed after flowering with a fertiliser formulated for rhododendrons, azaleas and camellias.

For healthy growth:

Apply compost around the drip line each spring.
Refresh organic mulch annually.
Avoid high-nitrogen fertilisers, which encourage foliage growth at the expense of flowers.

Minimal pruning is required.

After flowering:

Remove spent flower trusses by gently snapping them off.
Remove dead, damaged or crossing branches.
Lightly shape if required.

Avoid heavy pruning unless rejuvenating an older shrub.

Rhododendron 'Vulcan's Flame' is highly frost hardy and performs exceptionally well throughout much of New Zealand.

During winter:

Maintain a protective mulch layer around the root zone.
Water during prolonged dry spells if necessary.
Protect developing flower buds from accidental damage.

This variety is generally healthy when planted in suitable conditions.

Occasionally inspect for:

Lace bug
Thrips
Aphids
Root rot in poorly drained soils

Providing good drainage, adequate airflow and consistent moisture will minimise most problems.
View full details