Rhododendron Horizon Monarch yellow & pink tinted flowers

Rhododendron Horizon Monarch shrub in flower

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Rhododendron 'Horizon Monarch' Shrub

Name: Rhododendron 'Horizon Monarch' Shrub
Brand: Ornamental Trees
SKU: RHM.B.75.1
Price: 36.0 GBP
Availability: InStock

Rhododendron

With large yellow and pink tinted flowers, 'Horizon Monarch' Shrub really welcomes summer to your garden

From £36

From £36 ~~£45~~

Available As:

Bush

Many stems low down

Choose Option 3 options

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Choose Option 3 options

Product Details

Planting & Care

Delivery Information

Key features

Awards RHS Award of Garden Merit

Final size 2 x 2 metres in 20 years

Foliage Glossy evergreen leaves

Flowers Pale yellow-pink flowers

Position Partial shade

Soil Acidic

Description

The large yellow and pink tinted flowers of Rhododendron 'Horizon Monarch' are a wonderful way to welcome the arrival of summer. This variety is a cross between Rhododendron 'Nancy Evans' and 'Point Defiance'. In addition to the stunning blooms, it features large evergreen leaves.

Rhododendron 'Horizon Monarch' is one of the very best yellow flowering Rhododendrons. It will grow to 2 x 2 metres in 20 years, ideal for containers, borders and small gardens with neutral to acidic leaning soil. For northern Scotland, we recommend one of our hardier varieties of Rhododendron such as 'Marcel Menard'.

Planting Steps

1Preparation

Pot-grown plants can be planted at any time of year, whereas bare roots need to be planted between November and March.
Clear weeds and grass within a metre of the planting hole.
Dig a hole as deep as the root mass and twice as wide.
To help your plant establish more effectively, sprinkle Rootgrow in the hole.

2Planting

Gently loosen the roots and place into the planting hole.
Ensure the top of the plant's compost is flush with the level of the surrounding soil and the graft union or collar of the tree is above ground level.
Mix 50% of the original soil with 50% compost.
Fill in the hole, firming the soil gently.

3Last Steps

Water generously around the base of the plant.
If you are planting either a single stem tree or mature standard tree, we recommend adding a staking kit and rabbit guard.

Aftercare Advice

Rhododendron and Azalea are generally low maintenance however they will require a good watering regime for a couple of years whilst they establish. Water well and regularly through spring and summer, increasing in hot or dry weather. If planting in autumn, you may only need to water a little. Rainwater is preferred but tap water can also be used. It is advisable to keep the area free of competing weeds and grass during this period.

Rhododendron and Azalea are acid-loving plants so when grown in acidic soil are unlikely to need additional feeding. However, if the acidity of your soil is low, iron, manganese and magnesium treatments can be added to prevent browning and yellowing of the leaves. Potted Rhododendron and Azalea may also benefit from a slow-release granular fertiliser which provides an on-going support of nutrients.

Most Rhododendron and Azalea belong to RHS 'Pruning Group 8,' meaning they require minimal pruning. After they finish flowering, you should remove any deadheads and address any diseased or damaged branches, but otherwise, they should be left unpruned.

For more detailed advice and video guides, please visit our Help & Advice section.

	Small shrubs (1-3)	Young trees & 4+ small shrubs	Select semi-mature trees & shrubs (1-4)	All other mature trees (any quantity)
Mainland UK ex. Scottish Highlands	£10	£12	£35	from £55
Scottish Highlands & the Islands	From £30
Outside Mainland UK	Currently we are unable to deliver outside of Mainland UK

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