Nightbloom are a rare flame-red petaled flower native to the Blessed Isles. It is virtually extinct except for a few who bushes that are cared for in Vladimir's garden in his mansion in Noxus.
On the Blessed Isles they blossomed on the evening of the summer solstice. By morning the flowers wilted, leaving only blackened petals, not to be seen again until the following year. But for one night, they illuminated the forest with blazing crimson. If the flowers petals are plucked the remaining petals immediately curl inwards, the stem bending away as if it can express fear.