Today's post is of one of those classic cacti, this one - Astrophytum capricorne - from northern Mexico. It blooms in summer with sweet smelling 7.5 cm wide flowers which are yellow with a red center. It grows well from seed and is highly variable. It can be rot prone, so grow it in a porous mix and keep it dry during the winter. I couldn't resist taking this photo the other day as the beauty of the form always keeps me coming back.