How to keep squirrels out of the garden

Cover the bed with a rigid mesh cage and pin the skirt down. Squirrels dig, pull and probe rather than browse, so a slack net edge is a door and a cage is not. For bulbs specifically, lay wire mesh over the planting area and cover it with soil.

The three targets

• Bulbs. Freshly planted bulbs are dug up in the days after planting, when the disturbed soil is obvious. Crocus and tulip are taken most often.
• Seedlings. Pulled rather than eaten, frequently for no visible reason. The cost is a resown bed and two weeks of the season.
• Soft fruit and tomatoes. Taken as they ripen, often a single bite from each fruit rather than one eaten whole, which is more infuriating than either.

All three are working behaviors rather than browsing, and that is the key to choosing a barrier.

Cages, not netting

A browsing animal is stopped by a layer between mouth and plant. A working animal solves a layer. A squirrel will lift a slack net edge, dig under an unpinned skirt, or simply chew through a light mesh laid loosely.

So a rigid pop-up cage, pinned properly, is the reliable answer. ANC POP publishes 40 x 40 x 30 in with eight ground stakes; the stake count is not a detail, it is the product. Plant cages and cloches covers the options and netting vs cages covers the distinction.

The bulb trick

Bulbs have a specific and effective answer. After planting, lay wire mesh — hardware cloth or chicken wire — flat over the planting area and cover it with an inch or two of soil.

1. Plant the bulbs as normal and firm the soil.
2. Lay a sheet of 1 in or smaller mesh flat across the whole planted area, extending a few inches past it.
3. Pin the corners with landscape staples so it cannot be flipped.
4. Cover with an inch or two of soil, then mulch as usual.
5. Shoots grow up through the mesh in spring; the digging is blocked all winter.

The reason this works so well is that the vulnerable window is short. Squirrels dig where the soil has recently been disturbed. Get the bulbs through that first month and the problem mostly disappears on its own.

Repellents, in their proper place

Plant repellents such as Bobbex-R are formulated for rabbits, squirrels and chipmunks rather than for deer, and they carry the same reapplication burden as any coating: rain strips them, new growth is untreated.

Use them where a cage is impractical — a container by the door, a specimen shrub, a border you are not going to cover. Do not use one as the primary defense on a bed you could cage. And note that a seed treatment such as capsaicin sauce is for feeder seed and does nothing for a garden bed; the two products are not interchangeable.

Fix the feeder, reduce the garden pressure

This is the connection nobody makes, and it is the reason this site covers both. If you run a bird feeder within sight of the vegetable beds, spilled seed is a permanent food source subsidizing the local squirrel population. That population then works your garden.

Fitting a baffle and a seed tray reduces garden pressure at no additional cost. It is the single most overlooked move in garden protection.

What does not work

• Loose netting laid over a bed. A working animal lifts the edge within a day.
• Blood, bone or hair scattered on the soil. No published effectiveness, and it can attract other animals.
• Ultrasonic devices. No published frequency, range or habituation data on the listings we found.
• Removing the squirrels. Trapping and relocation is regulated differently in every state, frequently kills the animal, and the territory is reoccupied within weeks.