Is it possible to grow money plant only in Vermiculite? The plant grows in soil and water, so can it grow only in vermiculite, as vermiculite retains water really well?
Not without providing additional nutrients. Vermiculite is inert and contains negligible amounts of nutrients, and your plants would quickly show signs of nutrient deficiencies if provided with water alone. However, as a substrate in a hydroponics system where a nutrient solution is used, it can perform well although other substrates are more commonly used for economic reasons.