It can grow up to 3 to 4 feet in height and almost 4 feet across in well grown specimens. In the garden this plant requires a rich soil with very good drainage and more sun than other hellebores. Due to its large flowers spikes, this hellebore is prone to wind damage, so staking is often advisable. The other is a collection of hybrids called the Orientalis hybrids . Offering the widest range of colours of all the hellebores in cultivation, they are also the easiest to grow.
Colours range from white through to blue-black.
Growing to about 18 inches in height with typically divided evergreen leaves, the exotic flowers look almost tropical. These hybrids thrive in a moist rich alkaline soil, with reasonable drainage. Despite their delicate looking flowers, these plants are old campaigners as far as the weather goes. Very hardy, they can withstand frost well. In prolonged cold spells or when biting winds blow, it helps to cover the plants with bracken fronds or similar to alleviate the worst of the weather.