Tempt your feline friend with this From The Field Ultimate Blend Silver Vine Sticks & Catnip! The silver vine sticks are the natural stems of the plant and help promote dental health by scrubbing away plaque and tartar while your kitty chews on the bark. And if chewing on these satisfying sticks isn’t enough for your kitty, From The Field also marinated them in their ultimate blend catnip and silver vine mix to ramp up the potency for your purring pal.