Water the dwarf schefflera deeply whenever its soil about 1/2 inch below the soil surface feels dry to your touch. The water used should not be softened water. Supply water to the plant slowly and evenly over the soil surface, stopping only when water begins to exit the plant container’s drainage holes. Fertilize the dwarf schefflera with a water-soluble or slow-release fertilizer labeled for use for houseplants. If the plant grows in bright light, then it needs fertilizer every two months. If it receives medium light, it needs fertilizer every three months. An excessive amount of fertilizer can burn the plant’s roots, give new foliage brown leaf margins or make leaves become dark green, soft and floppy. Tall, pale and thin growth often indicates the plant has an insufficient amount of available nutrients.