The best deer repellent for hostas

Rutgers Cooperative Extension rates hosta D — frequently severely damaged — and states such plants should only be planted with additional protection such as fencing or repellents. Spray an odor-based repellent from emergence on a calendar and rotate bases; for a few prized clumps, a pop-up mesh cage over the mound is the only method that does not decay.

What the extension rating actually says

Rutgers Cooperative Extension publishes *Landscape Plants Rated by Deer Resistance*, a list of several hundred plants on a four-letter scale: A, rarely damaged; B, seldom severely damaged; C, occasionally severely damaged; D, frequently severely damaged. Hosta — *Hosta sp.*, perennials — is rated D.

The list adds a sentence that is the whole reason this page exists: plants in the D category "should only be planted with additional protection such as the use of fencing, repellents, etc." That is an extension service saying, in writing, that a hosta without protection is a hosta you have decided to feed to the deer. It is the same category the site treats as a repellent-on-a-calendar problem on the hydrangea page, and hostas are a cleaner case, for a reason that comes up below.

Why hostas are a cleaner case than most

Two things about a hosta make protecting it simpler than protecting a shrub.

It is low. A mature hosta is a mound of foliage a foot or two high. Deer browse it from above, at the height their heads naturally sit. That means a physical barrier does not have to be an 8 to 10 ft fence — it can be a mesh cage over the clump, which is a product that exists, publishes its dimensions and costs a fraction of fencing. Plant cages and cloches covers the format; the pop-up mesh cover on this page publishes 40 x 40 x 30 in, which clears most clumps.

The damage is in season, on foliage. Unlike a hydrangea, where the expensive loss is the flower bud taken in late winter, a hosta's loss is leaves taken from spring emergence through fall. That is precisely the window a repellent's published growing-season figure covers, and it means the schedule is straightforward: start at emergence, keep going until the leaves die back.

Choosing the repellent

The question in the search box is 'best deer repellent for hostas', so here is a direct answer built on what the makers publish, with the full three-way comparison on Bobbex vs Liquid Fence vs Plantskydd.

Prefer odor-based products on hostas. A taste repellent works after the animal bites, and on a hosta a bite is a leaf, sometimes the whole crown. Plantskydd and Liquid Fence both publish scent-based mechanisms. That is not a claim that they work better — we have not tested either — but it is the right mechanism for a plant where the first bite is the loss.

Rotate. Deer habituate, and hostas are in the ground for years. Plantskydd and Liquid Fence are different bases; alternating them across a season is a genuine rotation. Liquid Fence's label says rotation is unnecessary; the extension services say deer habituate; this site sides with the extension services.

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Quick picks

Ranked, with the trade-off named. Tap a row for the full write-up; the price button goes straight to Amazon.

#	Product	Best for	Price
1	Plantskydd Ready-to-Use Liquid, 1.3 galReady-to-use and covering the widest published species list here: deer, rabbits, elk, moose, voles, squirrels and chipmunks from one bottle.	No mixing, widest species list	$79.95 on Amazon
2	Liquid Fence Deer & Rabbit Repellent Ready-To-Use, 32 ozPutrescent egg solids and garlic, scent-based, on a published once-then-monthly schedule. A genuinely different chemistry from Plantskydd, which is the whole reason to own it.	A third base to rotate against blood meal	Check price on Amazon
3	Bobbex Concentrated Deer Repellent, 32 ozA concentrate rather than a ready-to-use bottle, which is the right format if you are going to spray often enough for a repellent to work at all.	Rotation partner, concentrate	$23.35 on Amazon
4	ANC POPNo photo ANC POP Pop-Up Mesh Plant Cover, 40 x 40 x 30 inThe published 40 x 40 x 30 in footprint is the useful thing here: you can check it against your bed before you buy, which most cage listings do not let you do.	One raised bed, instantly	Check price on Amazon
5	Tenax Deer Netting, 7 ft x 100 ftNetting rather than fence: lighter, easier to drape over a shrub or a bed, and not pretending to be a perimeter barrier.	Draping and small enclosures	$65.94 on Amazon
6	Plantskydd Powder Concentrate, 2.2 lb2.2 lb of powder makes 2.5 gallons, which is the format that makes a repellent program affordable instead of theoretical.	Best cost per treated area	$64.95 on Amazon

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The picks in full

Top pick No mixing, widest species list

Plantskydd Ready-to-Use Liquid, 1.3 gal

Ready-to-use and covering the widest published species list here: deer, rabbits, elk, moose, voles, squirrels and chipmunks from one bottle.

Published specifications

Size

1.3 gal ready-to-use (published)

Targets

Deer, rabbit, elk, moose, voles, squirrels, chipmunks

Form

Ready-to-use liquid

Part number

PS-5L

Trade-offs

• +No mixing, so it is the one people actually reapply on schedule
• +The species list covers the garden raiders as well as the browse animals
• +1.3 gal is enough to treat a real garden rather than a planter
• −Ready-to-use costs considerably more per treated area than concentrate
• −It is a blood-meal-based product and it smells like one for a day or so

Who it is forA mixed garden problem — deer on the shrubs, rabbits on the greens, chipmunks in the bulbs — where you want one bottle rather than three.

Skip it ifYou are treating a large area regularly. Buy the powder concentrate and mix it; the ready-to-use maths stops working quickly at scale.

$79.95 on Amazon

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Where these specifications came from

• Plantskydd PS-5L ready-to-use animal repellent, 1.3 gal (Amazon listing)

No. 2 A third base to rotate against blood meal

Liquid Fence Deer & Rabbit Repellent Ready-To-Use, 32 oz

Putrescent egg solids and garlic, scent-based, on a published once-then-monthly schedule. A genuinely different chemistry from Plantskydd, which is the whole reason to own it.

Published specifications

Size

32 oz ready-to-use spray (published)

Active ingredients

Putrescent whole egg solids 10.405%, garlic (published)

Mechanism

Scent — animals do not have to bite to be repelled (published)

Schedule

Apply, repeat one week later, then approximately once per month (published)

Intense feeding

Once a week for three weeks, then monthly (published)

Rain

Rain resistant (published)

Targets

Deer and rabbits (published)

Trade-offs

• +A different active base from Plantskydd and from Bobbex, so a rotation with either is a real rotation
• +Publishes an actual schedule — once, again a week later, then monthly — rather than 'as needed'
• +Scent-based, so it acts before the first bite rather than after it
• +Ready-to-use in a trigger sprayer, which is the right format for a few hostas by the door
• −The maker states rotation is never needed because aversion 'will never diminish' — extension services say deer habituate, and this site sides with the extension services
• −Ready-to-use is the most expensive way to buy any repellent per treated area
• −Putrescent egg is exactly as pleasant as it sounds for the first day
• −Targets deer and rabbits only on the label; squirrels are not named

Who it is forA small number of high-value plants, and somebody who already uses a blood-meal product and wants a second base to alternate with.

Skip it ifYou are treating a large border. Buy a concentrate — cost per treated area is what decides whether you keep applying, and the trigger bottle loses that contest badly.

Check price on Amazon

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Where these specifications came from

• Liquid Fence Deer And Rabbit Repellent Ready-To-Use, 32 oz (Amazon listing)
• Liquid Fence, Deer & Rabbit Repellent Ready-To-Use (manufacturer page)

No. 3 Rotation partner, concentrate

Bobbex Concentrated Deer Repellent, 32 oz

A concentrate rather than a ready-to-use bottle, which is the right format if you are going to spray often enough for a repellent to work at all.

Published specifications

Size

32 oz concentrate (published)

Targets

Deer, elk, moose

Form

Dilute and spray

Part number

B550100

Trade-offs

• +Concentrate is far cheaper per treated square foot than ready-to-use
• +A different active profile from Plantskydd, which is what makes rotation possible
• −Repellents are a reapplication commitment: rain, new growth and habituation all reset them
• −Mixing and spraying is a job, and the ones that stop working are usually the ones that stopped being sprayed

Who it is forOrnamental beds and shrubs where fencing is not acceptable, used on a schedule rather than in a panic.

Skip it ifYou want to solve this once. Extension services are consistent that a fence is the exclusion method and a repellent is a mitigation. Read what actually keeps deer out before you buy a spray instead of a fence.

$23.35 on Amazon

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Where these specifications came from

• Bobbex B550100 concentrated deer repellent, 32 oz (Amazon listing)
• Colorado State University Extension, Preventing Deer Damage

ANC POPNo photo

No. 4 One raised bed, instantly

ANC POP Pop-Up Mesh Plant Cover, 40 x 40 x 30 in

The published 40 x 40 x 30 in footprint is the useful thing here: you can check it against your bed before you buy, which most cage listings do not let you do.

Published specifications

Dimensions

40 x 40 x 30 in (published)

Stakes

8 ground stakes included

Material

Mesh

Assembly

Pop-up, folds flat for storage

Trade-offs

• +Published dimensions, so bed fit is a measurement rather than a gamble
• +Eight stakes is enough to actually pin the skirt, which is where these usually fail
• +Folds flat, so it does not become a winter storage problem
• −30 in of height caps what you can grow under it
• −A pop-up frame is not a structure; it will not survive being leaned on

Who it is forA single raised bed of seedlings, greens or strawberries that squirrels, chipmunks or birds are working through.

Skip it ifDeer are your problem. A 30 in mesh box is a barrier a deer steps over, and fencing or repellent is the honest answer.

Check price on Amazon

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Where these specifications came from

• ANC POP pop-up mesh plant cover, 40 x 40 x 30 in, 8 stakes (Amazon listing)

No. 5 Draping and small enclosures

Tenax Deer Netting, 7 ft x 100 ft

Netting rather than fence: lighter, easier to drape over a shrub or a bed, and not pretending to be a perimeter barrier.

Published specifications

Height

7 ft (published)

Length

100 ft

Material

Black polypropylene

Structure

Quadrangular mesh (published)

Trade-offs

• +Light enough to throw over a shrub or a fruit cage without a post system
• +Cheap enough per foot to protect a lot of individual plants
• −Not a perimeter fence, and treating it as one is how people conclude that deer fencing does not work
• −Loose netting can entangle wildlife if it is left slack and unpegged

Who it is forIndividual shrubs, small beds and winter protection on ornamentals, rather than a garden boundary.

Skip it ifYou want a perimeter. Buy the fence, set posts, and tension it — the height guide explains why the two are not interchangeable.

$65.94 on Amazon

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Where these specifications came from

• Tenax Deer Netting, heavy duty, 7 ft x 100 ft (Amazon listing)

No. 6 Best cost per treated area

Plantskydd Powder Concentrate, 2.2 lb

2.2 lb of powder makes 2.5 gallons, which is the format that makes a repellent program affordable instead of theoretical.

Published specifications

Size

2.2 lb powder concentrate (published)

Yield

Makes 2.5 gal of liquid (published)

Targets

Deer, rabbit, voles

Active base

Dried blood meal

Part number

PSP-R2

Trade-offs

• +Published yield, so cost per gallon is arithmetic rather than a guess
• +Powder stores far better than mixed liquid between seasons
• +The cheapest way here to cover a large garden repeatedly
• −You have to mix it, and mixing is the step people skip
• −Blood meal has a smell on application; downwind of a patio it is noticeable

Who it is forA large garden on a real reapplication schedule, especially through the spring browse season.

Skip it ifYou will not mix it. An unmixed concentrate protects nothing, and the ready-to-use is better value than a bag in the shed.

$64.95 on Amazon

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Where these specifications came from

• Plantskydd PSP-R2 powder concentrate, 2.2 lb, makes 2.5 gal (Amazon listing)

The schedule

1. Spray at emergence, the day the first pips are visible. Deer find new hosta growth fast, and the first browse of the year is the one that sets the pattern.
2. Reapply on the published schedule, not on a damage report. Plantskydd's growing-season figure is 3 to 4 months; Liquid Fence's is monthly after the first fortnight; Bobbex's is every 7 to 14 days in peak growth.
3. Reapply after every flush of new leaves. A hosta unfurls new leaves through early summer, and a new leaf is an unsprayed leaf whatever the calendar says.
4. Switch base mid-season. Two applications of one product, then the other. Do not switch between two products with the same base and call it a rotation.
5. Stop when the leaves die back. There is nothing to protect in winter; the hydrangea's winter-bud problem is not a hosta problem.

The cage, for the clumps that matter

For a hosta collection — the named varieties, the ones you would replace at cost — a repellent is a maintenance program and a cage is a solution. A pop-up mesh cover publishing 40 x 40 x 30 in drops over a clump, stakes down, and does not decay, wash off or need a calendar. It is not beautiful. It is also the only method on this page that Rutgers' 'additional protection' does not qualify with a schedule.

For a whole bed of hostas, deer netting at 7 ft over a simple frame around the bed does the same job at bed scale, and deer fencing covers the products. What does not work is netting draped over the foliage: deer pull it, it tears, and it entangles other wildlife.

What we would not do

• Rely on a 'deer-resistant hosta.' There is no such rating. Rutgers rates the genus D; individual varieties are not rated separately on the list, and no variety we could find is published as resistant by an extension service.
• Use homemade sprays as the plan. Egg-and-water mixtures are the basis of a commercial product for a reason, and the commercial version publishes a schedule and a sticker. A homemade batch publishes nothing and washes off in the first rain.
• Spray once in spring and expect a season. Every published duration is shorter than a hosta's growing season, and new growth is unsprayed growth.
• Skip the rotation. The plant is in the ground for a decade. Habituation has time on its side.

And if the deer are also in the vegetable garden, the answer there is different and it is a fence — how to keep deer out of the garden sets out the order.