Deer and rodents can do terrible damage to tulip and crocus plantings, but there are many bulbs critters don’t like, chief among them daffodils.
Here is a list of the bulbs we carry that deer generally leave alone. Only members of the Amaryllis family, which includes daffodils, snowflakes and snowdrops, are truly deer and rodent proof. They contain a bitter, poisonous substance called lycorine that no mammal will eat. The other bulbs in the list are unpleasant to deer. Some are also unpleasant to rodents. Deer will generally avoid these bulbs but might take a bite if the plants are directly in their path or starvation forces them to overcome their aversion.