Even though tropical plants thrive best with rainwater, tap water can be used as long as it is kept out overnight to allow the chlorine to evaporate. Then, the water should be poured into the pot, avoiding the leaves.
Diseases that Affect Tropical Houseplants
If your plants are over watered, have inadequate light, subject to too much humidity, grown in a potting mix that is unsterilized, it causes fungal growth. Fungi usually grow and spread very swiftly, resulting in the destruction of all your tropical plants.
Some of the most common symptoms of a fungal infection are the shriveling of the tips of the leaves along with dark strips; the shedding of infected leaves; a whitish-gray matter forming on the soil; and the leaves getting black, brown or white spots.
If the affected plant needs to be repotted, the soil should be sterilized first. One of the best ways to sterilize the soil is to put the soil in a baking pan with a potato inserted in the center. This should be baked at 350°F. The soil gets sterilized once the potato is done.
Best Tropical Plants to Grow
Heliconias have lovely flowers and huge leaves, which can have a dramatic effect. Gingers too have a heady scent, and are available in a number of varieties. They grow the best in fertile and moist organic soil.