Protecting Your Garden from Browsing Deer

October 2001

By Mary Bernard, Master Gardener


Plant damage due to browsing deer is a frequent complaint of
Central Coast gardeners in rural and suburban neighborhoods.  It is a particular problem during the fall when the days shorten, weather cools, and deer feel pressure to stock up for the winter ahead.  Our irrigated landscapes and gardens are generally more attractive to deer than natural areas where water and other food sources have become scarce.

While no one control method is completely infallible, a combination of strategies will help reduce the amount of damage to your plants.  Take action at the first sign of a problem - it is difficult to break well-established feeding patterns.

Avoid plant species that are attractive to deer.  They find some plants hard to resist - many flowering plants, including roses and fruit trees, are among their favorites.  Other kinds of plants are unpalatable to them, and will usually be left alone.  If they are hungry enough, they may be reduced to eating even those plants that are said to be “deer resistant”.

Exclusion methods involve the use of physical barriers to prevent browsing activity.  Tall, sturdy fences or electric fencing provide effective barriers, but can be an expensive and ambitious undertaking.  Netting, plastic tree-protectors, chicken wire or hog wire cages around individual plants are reasonable alternatives.  Floating row covers over vegetable garden plantings also provide protection.

Frightening measures involve threatening or scaring deer away.  Barking dogs or sudden loud noises intimidate deer.  Mechanical scaring devices, such as a motion sensor “scarecrow” with pulsating sprinkler can be effective as well.  Deer may eventually catch on to some other gimmicks and devices, however, as they realize that they can’t harm them.

Repellants deter browsing deer by either odor or taste.  Commercial repellants have a foul odor that can be effective if used properly.  Always follow product package instructions for best results.  They should be reapplied after rain.  Repellants may not be successful over a period of time, however.  As deer grow accustomed to the odor, they feel less intimidated and repellants
become less effective. 

Be persistent!  A combination of strategies usually works best.  The problem may not be eliminated entirely.  Often a reduction of damage is your best hope of success.

Remember - wild animals exist as a vital part of the ecology in
California.  State and local laws protect deer and some other species.  It is illegal to shoot firearms in many areas (contact local law enforcement agencies or State Fish & Game Dept. to inquire).

Gardeners may adapt defensive techniques to keep them at bay, but animal life can also add pleasure and interest to outdoor living.  The charm and beauty of the country setting (of which deer are a part) is what attracted many of us to
SLO County’s rural neighborhoods.  Human-made landscapes often help supply their needs for food, water, nesting sites, & shelter from their predators.  A healthy balance of nature in our surroundings should be our ultimate objective.

University of California Cooperative Extension Master Gardener Volunteers can provide additional gardening information upon request .Call the San Luis Obispo office at 781-5939 on Mondays and Thursdays from 1 to 5 PM.  You may also call the Paso Robles office at 237-3100 on Wednesdays from 9 AM to 12 PM.  The San Luis Obispo Master Gardeners website is at http://groups.ucanr.org/slomg/.  Questions can be e-mailed to: mgsanluisobispo@ucdavis.edu.