Willow trees are grown in Kansas for privacy screens, windbreaks, shade and ornamental purposes. Sandbar and black willow are the two most common willows grown in Kansas, but weeping blue Arctic willow and weeping pussy willow will also do well in the state. Take cuttings while the willow tree is dormant--horticulturists at Kansas State University suggest the period after the leaves fall but before the buds open. In Kansas, this occurs from October through March.
Cut a branch, the thickness of a pencil and 10 inches in length, from the willow tree at a 45-degree angle. Mist the cutting with the misting bottle and seal it in a plastic bag until you are ready to plant it.
Pour the sand into the planting pot and water it until water drips from the bottom of the pot. Use a pencil or your finger to poke a planting hole in the sand.
Pour rooting hormone powder or liquid into a small cup. It's best not to dip the cutting directly into the jar as it could contaminate the entire contents. Dip the bottom 1-inch of the cut end of the willow branch into the rooting hormone, then stick it into the sand. Bury as much of the branch as possible; roots will form along the entire length of the cutting.
Mist the cutting daily with the plant misting bottle and keep the sand moist but not soggy. Allow the willow to establish a strong root system and begin to bud while still in the planting pot. Transplant outdoors in the early spring, after the danger of frost for your region in Kansas has passed.