Monstera Deliciosa 'White Ghost' Urban Jungle New Philodendron Birkin arrived with yellow leaves, yellow stem, leaves falling, too much humidity? should i repot? : r plantclinic My favourite Mammillaria. Mammillaria hahniana 'Superba'. M. hahniana is also called 'The Old lady Cactus', this form is a mush smaller more compact growing form with very dense white hair and an Planet Houseplant's Guide to Monstera Deliciosa Cultivars Planet Houseplant Heartleaf philodendron care & tips for growing this classic plant!