Some of my 42 varieties of crotons in my garden. I love the color these bring to my yard. Hoping to top 55 varieties this year. : r gardening C3__C4__and___Cam plant: C3, C4, and CAM plants are three different types of photosynthetic pathways used by plants to fix carbon dioxide and produce sugars. The key differences lie in their strategies to Planten un Blomen in Hamburg How do I eliminate this gross brown algae? It keeps coming back no matter what I try and it's getting to the point that it doesn't seem worth it to have small Asclepias incarnata