Purple: splendid attire, extravagance, of a royal nature, attractive for its balance of heat and coolness, or sun and water; in plants, it is a red colour, that generates heat from the sun, combined with the deep blue-green of photosynthesis waking from the cold; it is a flame, flickering when you expected none at all.
Holboel’s Rock Cress: the leaves that are more beautiful than the coming stalk!