
FAQ About Indoor Plant Reuse and Recycling Practices

What are some ways to reuse indoor plant substrates?
Indoor plant substrates like soil can be reused by first sterilizing them to remove pathogens. This can be done by baking the soil in an oven at 180°F (82°C) for about 30 minutes. After sterilization, refresh the substrate by mixing it with fresh compost, perlite, or other amendments to restore nutrients. Reused substrates can then be used for similarly purposed plants or for topping outdoor garden beds.