Colour Change: Nigella

Since my post about colour-changing spring peas, I’ve been looking out for more flowers that change colour. There’s been one practically right in front of me but I hadn’t noticed it until now.

Nigella damascena (probably ‘Miss Jekyll’) has been seeding itself around our garden for a few years. It becomes covered in lots of soft blue flowers and some that are white with blue veins. I’d always liked the pale-coloured buds best as a subject to photograph because of the extra detail of the delicate blue veins on the bluish-white petals.

Nigella damascena bud about to open.
This light-coloured bud of a nigella flower is just about to open.

Despite photographing them fairly frequently, I hadn’t realised that these pale flowers were the immature colouration. I had thought that they were a variation and that the flowers just came in a mix of blues on each plant. However, I’ve just read online comments by other gardeners who say the lighter coloured flowers gradually darken to give the beautiful sky-blue of the mature flower.

I don’t know why I didn’t notice this before. Even now I’m wondering if it is really true. I’ve just been out in the garden to look at the plants and all the buds I could see were light-coloured. There were no darker blue buds. So it seems that all the flowers do indeed start off as a white slightly flushed with a pale blue and with the blue and green veins as shown above.

Most of the mature flowers were blue but I could see one or two that were still pale. Maybe they will darken to the same blue as the rest if given time. Or will they? It will be difficult to tell because the seed pods develop quickly, so the whole plant is always changing. Perhaps some flowers simply don’t mature as fully as others before their petals drop. Trying to find the answer will give me a very good reason to look at these pretty flowers more often!

Blue Nigella damascena flower
This nigella flower has matured to a lovely blue.