Rhizome Division – Only propagate from robust, mature plants. Frydek grows from rhizomes, which can be divided to create individual plants. Rhizomes grow slowly, though, so a new Frydek won't be available to propagate for several years.In the spring, take the Alocasia out of the pot and inspect the roots to ensure they're healthy. Brush off the soil and look at the rhizomes. Use a pair of sterilized shears to cut off a portion of the rhizome.Plant the rhizome in lightly moistened soil and place it in a warm location with lots of indirect light. Water as needed to keep the soil slightly moist. In 30-50 days, small shoots will appear. It takes approximately three months for the plant to establish fully.