The China sinkhole was naturally formed as a result of the region’s karst processes, in which the humid climate of Hubei’s Xuanen county triggered the chemical dissolution of the carbonate landscape. 10
You may remember your grandmother starting to grow her own plants in jars of water. This age-old practice is still an excellent way to propagate many types of plants, including vining or soft-stem varieties of philodendron. Start with just a cutting and the philodendron will grow its own roots in the water. After rooting, you can plant it in a soil-filled container or in the garden. However, philodendron is one of those few houseplants that can grow in water permanently.