How much soil is required for potted arrrowhead plant?
How Much Soil Is Required for Potted Arrowhead Plant
Certified GKH Gardening Expert
Fill pots about 2/3 full, add the plant and fill in around it leaving about an inch space at the rim. This article should also help: https://www.gardeningknowhow.com/houseplants/arrowhead-plant/arrowhead-plant-care-arrowhead-plant-or-syngonium-podophyllum.htm