Sweet Woodruff
Feed Sparingly
Sweet Woodruff contains coumarin, a chemical compound that is used to manufacture anticoagulant drugs. The coumarin becomes potent as a result of the leaves being dried, so although it is probably fine for your tortoise to eat a small amount of young, fresh leaves, as part of a varied diet, do not feed dried leaves or plant Sweet Woodruff in the tortoise's enclosure where leaves can dry up and be nibbled by the tortoise.