These cheerful yellow flowers are a sure sign spring has arrived. Their bright, bobbing heads come in many different heights and forms, including single and double flowers. You can also grow them in plenty of other pretty colors like white, pink or orange. Best of all? Rodents don’t like daffodils so they’re less likely to get dug up unlike other spring-blooming flowers. That, and they require very little care. Plant them in the fall in a spot that gets lots of sun exposure.