Rhododendron Horizon Monarch

Rhododendron 'Horizon Monarch' is a bush of medium size with an impressive flowering: huge clusters of straw yellow flowers that emerge from peach-orange buds and create a very warm harmony! Despite its almost exotic appearance, this is a hardy and robust young plant.

The bush is dense and abundantly covered with beautiful dark green glossy foliage. It will reach a height and spread of 1.5 to 1.8m, and will be slightly wider than tall once fully grown. It is a vigorous and easy plant with beautiful growth, and we highly recommend it to all gardeners looking for a rhododendron "like no other"! This heathland bush will thrive in partial shade in a cool, humus-rich, and well-drained acidic soil. Like all yellow rhododendrons, it does not tolerate excessive watering, so it must be planted in a well-drained spot. The 'Horizon Monarch' rhododendron is hardy across a wide climatic range.

In April-May, its spectacular flowering consists of corymbs of 15 beautiful large flowers or more! The buds are reddish-orange with salmon undertones, and the inside of the flowers is straw yellow with a tiny bright red mark at the centre. The slightly fringed edges of the petals add extra relief. Thanks to the work of an American hybridizer from the Seattle area in the early 80s, we can now enjoy this magnificent variety, which brings a soft and warm colour harmony to the garden!

Rhododendron 'Horizon Monarch' can be used as a standalone or in mass plantings, especially with other heathland plants. It can be paired with Chinese azaleas, which share its warm tones, magnolias, Andromedas (Pieris), mountain laurels (Kalmia), Japanese maples with green or purple foliage...