No one really hibernates here. Well, ground squirrels might, but they are unlikely to be a problem in refined home gardens. Winter weather is sufficiently mild for most of the most troublesome vermin to remain active, even if somewhat subdued. Some are more active in autumn before food gets scarce. They store food for later, and eat more to gain weight.

Now that it is spring, vermin are more active than they are at any other time of year, even autumn. Gophers, squirrels, rats and mice want to party like it is 1999; well, like spring of 1999. Although they all fattened up last autumn, and stored plenty of food for winter, they now want to exploit abundant spring vegetation. So do raccoons, skunks and opossums.

Generally most vermin, which most prefer to describe more politely as ‘wildlife’, are not a problem for home gardens. Some might be beneficial. Skunks may trench into lawns, but only because they want the grubs that would otherwise cause more damage from below. They also eat snails and slugs. Opossums eat snails and slugs too, as well as baby rats!

However, skunks and opossums can do more harm than good. They eat vegetables and fruits as they ripen, and pet food. Raccoons cause more significant damage, and can be very dangerous to pets. These three types of vermin are nocturnal, and therefore difficult to dissuade or confront directly. Fortunately, they are not very common in urban gardens.

Conversely, squirrels are everywhere except the harshest desert climates. Although they cause significant damage to new spring growth, and will later damage developing fruits, they are more tolerable than other vermin. Some people actually feed them to draw them to their gardens! Rats and mice are less tolerable, probably because they lack fluffy tails.

Gophers are likely causing more damage than other vermin now. Their growing families voraciously devour many of the fresh roots that disperse in spring. Now that their tunnels are not too muddy, gophers are remodeling to expand accommodations. Young gophers do not live with their parents for very long, so will eventually infest new adjacent territory. Lawns and vegetable gardens are most preferable.

None of the most problematic rodents here hibernate completely. Only ground squirrels hibernate, but they are rare, and tend to avoid home gardens and refined landscapes. Some other rodents are less active through the cooler parts of winter, but never completely stop eating, chewing and digging up what they want from our gardens. Many will become more active with warming weather.

Gophers are the most destructive rodents right now. They might still be excavating the mud of last winter from their tunnels. They will find plenty to eat as warming weather stimulates root growth of their favorite plants. Young gophers are growing up and leaving home, to excavate more tunnels and consume more vegetation elsewhere. They are more numerous now than they will be all year.

Squirrels are not so industrious. For now, they are destructive only if they dig out recently planted seedlings and bedding plants, or eat flowers and freshly emerging foliage. They should otherwise be temporarily satisfied with acorns that they hid late last year. They will become more of a problem as they eat ripening fruit, nuts and maybe vegetables later in summer. Some might chew bark.

Rats are sneakier than squirrels. They are not as destructive to ripening nuts and stone fruits, but do eat some of what falls to the ground. Although not a problem for the garden, well fed rats infest adjacent homes, where they cause serious damage. At this time of year, rats sometimes ruin citrus fruit. They eat the pulp out from the rinds of oranges and tangerines, and the rind off of lemons.

Rodents are nearly impossible to exclude completely and safely from gardens. Poisons are too dangerous to be practical around the home, particularly if there are dogs or cats anywhere nearby. Traps are safer and effective, but require diligence. Also, some traps are difficult to set. Each type of rodent exhibits distinct characteristics. That which controls one type is ineffective for another.

Sanitation and vegetation management deters some rodents by depriving them of sustenance and nesting sites.