Shadowgraph imaging has been performed for crystal growth in the platform geometry to observe the strength and transition sequence of buoyant plumes. The growth parameters during the experiment are as follows. The experiment has been performed under free convection conditions. A symmetrical KDP seed crystal in the shape of a cuboid without pyramidal facets is placed in a small cavity on the platform made of Plexiglas. The dimensions of the seed crystal are 2 × 2 × 4 mm³. The c-axis of the crystal is along the gravity vector and the crystal is glued to the platform by self-curing  silicone sealant that is chemically inert. The pH of the solution is 4.3 and the impurities in the solution are as-present in the commercially available KDP chemical of 99.5% purity. The solution has a saturation temperature of 60^oC and the average cooling rate adopted during the growth is 0.02^oC/hr. The experiment is performed for 250 hours, cooling the solution by 5^oC. In the video above, a steady buoyant plume formed after 200 hours is seen in the shadowgraph.