Get the root started
When growing anthurium from a seed, the first step is to get the root started in a shallow container. Take a small plastic foam container and poke holes in the bottom to ensure good drainage.
Fill two third of the container with a mixture of sphagnum moss and aquarium charcoal in a ratio of four to three, that is three parts sphagnum moss and one part aquarium charcoal. Place the seeds in the container and press them gently into the mixture (do not push hard into the soil). Sprinkle water over the seeds and close the container. Place the container in a room that does not receive direct sunlight or heat. Check your seeds daily for any root growth.
Replant anthurium into a bigger pot
Once the roots grow to the point you cannot close the lid of the container, it is time to transplant your young anthurium plant to a pot. Make sure the pot has drainage holes at the bottom. Fill the pot with a soil mixture containing 50 percent potting soil, 25 percent sphagnum moss and 25 percent peat moss. Also add a small amount of perlite, to ensure the compost remains moist.
Location for pot
Place the pot in a spot that does not receive direct sunlight. These plants thrive well in temperatures ranging from 78 degrees Fahrenheit and 90 degrees Fahrenheit. Hot temperature affect the flowers while cold temperatures influence the leaves, causing them to change colour and not grow well. Keep rotating the pot a quarter to make sure all sides of the your anthurium receive equal sunlight.
Fertilize your anthurium weekly
Feed your anthurium plant weekly with 3:1:2 fertilizer (the numbers show amount of nitrogen, phosphorous and potassium present in the fertilizer).
Don’t forget to water your anthurium
Anthurium plants need slightly wet soil for optimal growth. Both over saturated and dry soil will affect the overall health of your plant.