Reds from breeders
Wild rhododendrons from Nepal and Sikkim include true reds, and breeders have used them to produce named hybrids. 'Britannia' is a classic crimson, forming a dome-shaped shrub of about a metre and a half, and the dwarf 'Elizabeth' carries trumpet flowers in bright red in April.
The meaning of red rhododendron
People search for what a red rhododendron means. In the language of flowers the genus traditionally signals caution, even danger. Red adds intensity, so a sensible reading is "bold, but handle with care".
Siting a red shrub
- Choose part shade, because strong sun can fade red flowers.
- Put it where its colour will not clash with pink neighbours.
- Water in dry spells and mulch in autumn with leaf mould.
- Keep the soil acid.
In Irish gardens
Many of Ireland's large estate gardens grew famous for their rhododendron collections, though the garden varieties are different from the invasive Rhododendron ponticum that has overrun some woodland. If you want a red shrub, ask for a named hybrid, and choose a variety with a mature height that suits your plot.
Poisons
Leaves, nectar and pollen contain grayanotoxins. Dogs, cats and horses are all affected, as the ASPCA's plant list makes clear. Honey made from rhododendron nectar can also cause poisoning in people, with dizziness and a slow heartbeat among the signs. Wash your hands after pruning and do not let children chew the flowers.
