We show that a chemical garden can be developed from an alkaline metal precipitate
using a flow-driven setup. By injecting sodium phosphate solution into lithium chloride
solution from below, a liquid jet appears, on which a precipitate grows forming a
structure resembling a hydrothermal vent. The precipitate column continuously builds
upward until a maximum height is reached. The vertical growth then significantly slows
down while the tube diameter still increases. The analysis of the growth profiles
has revealed a linear dependence of volume growth rate on the injection rate, hence
yielding a universal growth profile. The expansion in diameter, localized at the tip
of the structure, scales with a power law suggesting that the phenomenon is controlled
by both diffusion and convection.
