Does boiled basil turn purple?
Moreover, why are my basil leaves turning purple?
When you notice a plant with purple leaves rather than the normal green color, it is most likely due to a phosphorus deficiency. Young plants are more likely to display signs of phosphorus deficiency than older plants. If the soil is cool early in the growing season, a phosphorus deficiency may develop in some plants.
Also to know, can Basil be purple?
These purple basil leaves have a beautiful, coppery glow and clove-like, slightly spicy flavor. Use them in salads or preserved in oils and vinegars. A pot of purple basil provides surprisingly, striking color in the garden. Light requirements: Full sun is ideal, but plants can grow in part shade.
A few black spots that aren't moldy or slimy doesn't make it totally unusable, but it isn't very appealing to eat. This is actually precisely the reason why it's not recommended to refrigerate fresh basil leaves.