WILL THIS WORK WITH MARIJUANA STRAINS

Food coloring water evaporates from the surface of the plants leaves and petals. As this happens the plant draws water from the ground through its roots (or from the vase through the stem in this case). This process is called "transpiration".

The plant draws water through little "tubes" or vein-like structures called "xylem". And much like veins, the xylems are thick in the stem, and spread out in branch-like form along the leaves.

In this case, the flower draws coloured water through the xylem, and this dyes the flower petals!