Deer are eating my garden — what actually works to stop them?
An 8-foot fence is the only reliably effective deer deterrent — repellents and shorter fences work temporarily but tend to fail when deer are hungry enough.
Deer are opportunistic and highly adaptable. They learn quickly which deterrents are harmless, and hunger overrides fear. The honest assessment is that no repellent or exclusion method short of a proper fence can be counted on through an entire growing season, particularly if deer pressure in your area is high or if you're near the edge of suitable deer habitat. This is worth knowing before investing in products that may disappoint.
Fencing is the only method with a solid track record. Deer can jump 8 feet from a standing position, so effective exclusion fencing needs to be at least 8 feet tall. A single-strand electric fence with a peanut butter bait applied to the wire (deer touch it with their nose, associate the shock with the scent, and learn to avoid the area) can work at lower heights — but requires consistent maintenance and rebaiting. A properly installed 8-foot woven wire or mesh fence will exclude deer reliably for years.
Repellents — both commercial and homemade — can reduce browsing pressure when deer have alternative food sources, but they require consistent reapplication, especially after rain, and deer in high-pressure areas often habituate to them within weeks. Scent-based repellents (predator urine, soap bars, human hair) and taste-based sprays all fall into this category. None are a reliable long-term solution on their own.
For gardeners unwilling or unable to install full perimeter fencing, protecting individual high-value plants with wire cages, planting more deer-resistant species, or focusing on crops deer find less palatable (kale and other brassicas get browsed, but herbs, tomatoes, and cucumbers are often lower priority when other options are available) can reduce losses.
- TomatoThe warm-season anchor of the summer garden.
- LettuceA cool-season leaf crop that thrives in spring and fall, sulks in summer heat.
- KaleThe cold-weather workhorse that improves when everything else quits.
- PeaA cool-season crop that rewards early sowing and quits when summer arrives.
- CarrotA root crop that rewards patience and deep, rock-free soil.
- Brown Marmorated Stink BugSunken, corky dimples on fruit and pods caused by a mottled brown shield bug feeding through the skin.
- Cabbage MaggotBrassica transplants wilting and dying as white maggots tunnel through roots at or below the soil line.
- Carrot Rust FlyRusty tunnels through carrot and parsnip roots made by small white maggots feeding inside the root.
- ClubrootBrassica plants wilt and yellow despite watering; roots show club-shaped swellings when dug.
- Corn Earworm / Tomato FruitwormCaterpillars eating corn kernels from the tip; same species bores into tomato and pepper fruit. Often called 'tomato fruitworm' when found on tomato.
- Squirrels keep taking one bite out of my tomatoes — how do I stop them?Squirrels often take single bites from tomatoes to access water during dry periods — a separate water source can reduce the behavior, but physical exclusion with netting is the most reliable solution.
- I have aphids on multiple plants — do I need to spray everything?Aphids tend to colonize plants under stress and naturally crash when beneficial insects find them — water sprays and patience are often more effective than pesticides.
- Something is cutting off my seedlings at the base overnight — what is it?Cutworms — fat gray or brown caterpillars that live in the soil and feed at night — cut young stems at or just below the soil surface, and a simple collar around each stem can stop them.