In my yard in suburban Maryland, hellebores are the first of the spring flowers. This year, despite the unusually cold weather, they were up as early as ever. Even so, I know they’ll be in bloom for weeks and even months. What makes them such persistent bloomers?
For one, their petals are not really petals. They’re colored sepals, the leaves that cover and protect a developing flower bud. Because sepals are tougher than petals, they last longer. After the flower has been fertilized, the sepals’ pigments decay and the green pigment, chlorophyll, becomes evident. The longer the green sepals persist, the bigger the plant’s seeds. That’s probably because the sepals are photosynthesizing, enabling the plant to gather more solar energy and make more carbohydrates.
So, where are the hellebore’s petals? They have evolved into the little green leaves you can see at the base of the many stamens. (There can be up to 150 per flower.) The little leaves are known as “honey leaves,” and are actually nectaries that lure insect pollinators. No same old, same old about hellebores.