What does a flowering snake plant mean? Pineapple Growing Propagation, Planting And Care I noticed that this snake plant had mold growing all over the top of the soil and at the base of the plant. There are many reasons as to why your soil San Pedro cacti (Echinopsis pachanoi) usually bloom just once a year and only when theyre mature and thriving. , A few San Pedro bloom facts:, Most dont bloom until theyre at least 35 years Los Angeles Rare Succulents and Cactus Shop 1am Succulents Snake Plant Sansevieria Laurentii Live Indoor Outdoor Plant