Swiss Cheese Plant Philodendron Adansonii Air Purifying Houseplant, 4” Pot. Adansonii Swiss Cheese plants are low maintenance fast growing Houseplants with unique "Swiss Cheese" leaves. Like other houspelants they will help to purify the air indoors. Can grow over 3 feet tall. Adding a bamboo stake or moss pole to the planter will aid in upwards growth, otherwise the vines will trail downwards. Swiss cheese plants enjoy very bright light to partial sun, so keep near a sunny window. Soil should be acidic, rich, organic, and fast draining. These plants enjoy temps 65-80F, high humidity, and consistently moist soil. A bright bathroom is perfect for these plants. Feed a diluted fertilizer in spring and summer.