Deer / Review
Plantskydd, reviewed on its published specifications
Plantskydd is the repellent this site keeps recommending, so it is fair to hold it to the same standard as everything else: what does the maker actually publish, and what would we still like to see?
Plantskydd publishes more than most repellents: the active ingredient is dried blood, it works by odor before the animal bites, it is OMRI listed, and the maker states up to 6 months of protection over winter and 3 to 4 months in the growing season. Buy the 2.2 lb powder, which publishes a 2.5 gallon yield, and rotate with a product on a different base.
Why a review, on a site that does not test
We do not test products and we say so on every page. So a review here means one thing: we read everything the maker publishes, we check the parts that can be checked against outside sources, and we say which claims are specifications and which are marketing. Plantskydd turns up as a pick on the deer repellent roundup, the hydrangea page and elsewhere, and a product we recommend that often deserves the scrutiny.
What Plantskydd publishes
| Published claim | Maker's wording | Our note |
|---|---|---|
| Active ingredient | Dried blood (porcine and/or bovine) | A specification. It is what makes the product genuinely different from egg-based competitors |
| Mechanism | Emits an odor that animals associate with predator activity, repelling animals before they nibble on plants | A mechanism claim. Consistent with how the maker positions the product; not something we can verify |
| Duration, winter | Up to 6 months over winter | A maker's figure. 'Up to' is doing work here |
| Duration, growing season | 3 to 4 months in spring/summer | A maker's figure; the growing-season number is the one that matters for most buyers |
| Organic status | OMRI Listed by the Organic Materials Review Institute | Checkable — OMRI maintains a public list. A real third-party status |
| Yield, 2.2 lb powder | Makes 2.5 gal of liquid | A specification, and the reason the powder is the size to buy |
| Yield, 1 lb powder | Makes 1 gal of liquid | A specification |
| Targets | Deer, elk, moose, rabbits, voles, squirrels, chipmunks, and more | A label claim — broader than most deer repellents publish |
That is a better published record than most of the category. Two competitors we compare it against — Bobbex and Liquid Fence — publish application schedules but no duration figure of this kind, and neither publishes a yield in gallons for a concentrate the way Plantskydd does for the powder. The three-way comparison lines them up.
The yield arithmetic, which is the buying decision
Cost per treated area is what decides whether you keep applying a repellent, and Plantskydd is unusual in publishing the number that lets you work it out. The 2.2 lb powder makes 2.5 gallons. The 1 lb powder makes 1 gallon. The ready-to-use jug is 1.3 gallons, already mixed.
So the 2.2 lb powder yields nearly twice the spray of the ready-to-use jug, and two and a half times the 1 lb box. Whatever the live prices are on the day — and this site shows them only from its price layer, never from memory — the powder is the format to compare the others against. Buy the ready-to-use for a handful of plants by the door; buy the powder for a border.
Baffleworks is funded by affiliate commission. If you buy through a link on this page we may earn a commission at no extra cost to you, and it never decides a ranking. Full disclosure · how we pick.
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 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 |
| 2 |  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 |
| 3 |  Plantskydd Wettable Powder, 1 lbOne pound makes one gallon: the small box, for finding out whether a repellent program is something you will actually keep up. | Trying it without committing | $39.95 on Amazon |
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The picks in full
Top pick 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.
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Where these specifications came from
No. 2 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.
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Where these specifications came from
No. 3 Trying it without committing
Plantskydd Wettable Powder, 1 lb
One pound makes one gallon: the small box, for finding out whether a repellent program is something you will actually keep up.
Published specifications
- Size
- 1 lb box (published)
- Yield
- Makes 1 gal of liquid (published)
- Targets
- Deer, rabbits, elk, moose, hares, voles, squirrels, chipmunks
- Part number
- PSP-R1
Trade-offs
- Low commitment, and the yield is published so you know what a gallon costs
- Same species coverage as the larger sizes
- One gallon does not go far on a real garden
- Worst cost per treated area of the three Plantskydd formats here
Who it is forA first trial on a few shrubs, or a small courtyard garden where a gallon is genuinely enough.
Skip it ifYou already know you will be spraying all season. Go straight to the 2.2 lb box.
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Where these specifications came from
The claim we side with, and the one we hedge
Odor-based, before the bite. The maker's page states that odor-based repellents are more effective than taste-based ones because the animal does not need to sample the plant first, and cites research from the Connecticut Agricultural Experiment Station on sulfurous-odor repellents. We cannot verify the research summary ourselves, but the mechanism claim is consistent with how extension services describe repellent behavior, and it is why we prefer odor-based products on plants where a single bite is the whole loss — hydrangea buds, for instance.
Up to 6 months over winter. This is the figure that sells the product, and 'up to' is the phrase to notice. Winter duration depends on snow, rain and new growth, none of which the maker controls. Read it as an upper bound under good conditions and plan to check the plants, not the calendar. The growing-season figure of 3 to 4 months is the more useful one, and even that will be shorter on anything growing fast, because new leaves are unsprayed leaves.
What we would still like to see published
- A rain-fastness figure on the maker's product page. Dealer listings quote a drying window; we could not find it on the page we cite and we do not publish what we could not confirm.
- A per-gallon coverage area. Liquid Fence publishes up to 2,000 sq ft for its gallon; Plantskydd publishes yield in gallons but not the area a gallon treats. That is the missing half of the cost arithmetic.
- A habituation statement. Deer habituate to any single repellent over time; extension services are consistent on that. The maker does not address it, which is not a criticism so much as a gap — and the reason we recommend rotating with a product on a different base.
How to use it, from the published figures
- Mix the powder at the published yield — 2.2 lb to 2.5 gal — and spray the plants deer actually reach, which on most ornamentals is the outer 3 ft.
- Put the reapplication on a calendar, not on a damage report. The maker says 3 to 4 months in season; halve that mentally for anything in active growth.
- Rotate with a different base. Bobbex or Liquid Fence use different chemistry. Alternating Plantskydd with a second blood-meal product is a change of label, not a rotation.
- Keep it off food. Dried blood on plant surfaces for months is the point; it is not a point you want on lettuce.
Questions people actually ask
- Does Plantskydd work?
- We have not tested it. What we can say is that it publishes more than most competitors: dried blood as the active ingredient, an odor-based mechanism, OMRI listing, and stated durations of up to 6 months over winter and 3 to 4 months in season. Extension services describe repellents as reducing browse rather than preventing it, and that applies here.
- How long does Plantskydd last?
- The maker states up to 6 months over winter and 3 to 4 months in spring and summer. Treat 'up to' as an upper bound; new growth is unsprayed growth, so fast-growing plants need attention sooner.
- Which Plantskydd should I buy?
- The 2.2 lb powder, which publishes a 2.5 gallon yield — nearly twice the ready-to-use jug's 1.3 gallons. The 1 lb box makes 1 gallon. Buy ready-to-use only for a few plants.
- Is Plantskydd organic?
- It is OMRI Listed by the Organic Materials Review Institute, per the maker, which is a third-party status you can check on OMRI's public list.
- Is Plantskydd safe on vegetables?
- The maker positions it for ornamentals, seedlings and agriculture. The active ingredient is dried blood that stays on plant surfaces for months. We would not put it on anything you are about to eat.
- Should I rotate Plantskydd with another repellent?
- Yes, with one on a different base. Deer habituate to a single repellent over time. Bobbex and Liquid Fence use different chemistry from dried blood, so alternating with either is a real rotation.
Sources
Read next
- Bobbex vs Liquid Fence vs Plantskydd
Blood, egg-and-garlic, and a fish-oil sticker: three bases, three published schedules, and one maker's rotation claim we disagree with.
- The best deer repellents
Ranked on published yield and format, with an honest account of why repellents fail: reapplication, not chemistry.
- How to protect hydrangeas from deer
The buds in late winter are the expensive loss, not the summer leaves. Netting held clear, or repellent on a calendar.
- The best deer repellent for hostas
Rutgers rates hosta D and says plant it only with protection. The repellent calendar, the rotation, and the cage that works because a hosta is low.
- Deer Deterrence
Fencing at the height extension services publish, plus the repellents that fill the gaps around it.