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Cat grass plant buying guide: a kit, pot, or Zumula

Updated: 21 October 2026

You searched for a cat grass plant because the cat is chewing something else in the flat, and amazon.co.uk has answered with three different objects under one name. One is a wheatgrass seed kit you sow yourself. One is a ready pot of young wheat, barley, oats and often rye. One is Cyperus 'Zumula', a sedge sold as a longer-lived nibbling houseplant. This page is the choice between those types. The seven prices, scores and pack cells sit on the [cat grass plant comparison](/hub/houseplants/cat-grass-plant). Peter F. checked the listings. This is not a lab test. A qualifying purchase through our amazon.co.uk links can earn a commission at no extra cost to you.

You searched for a cat grass plant because the cat is chewing something else in the flat, and amazon.co.uk has answered with three different objects under one name. One is a wheatgrass seed kit you sow yourself.

Our top picks

Webbox Webbox wheatgrass kit

Best overall

Webbox Webbox wheatgrass kit
8.8/10about £6.10
View offer
Cat Mommy Cat Mommy one 12 cm pot

Rank 2

Cat Mommy Cat Mommy one 12 cm pot
7.6/10about £10.99
View offer
Carbeth Plants Carbeth Zumula 13 cm pot

Alternative

Carbeth Plants Carbeth Zumula 13 cm pot
7.8/10about £11.49
View offer
On this page
  1. 1.Three different things called cat grass
  2. 2.What the seven listings actually contain
  3. 3.Reviews you must not add together
  4. 4.Which type fits the job

Three different things called cat grass

A seed kit is not a plant on the day it arrives. The Webbox 120 g carton, model PT864443, is seeds. It is the best value pick at about £6.10 with 4.3 from 1,768 reviews of its own, and the wrong box if you need leaves this evening. A ready cereal pot is already grown. Cat Mommy's one pot and the generic single are 12 cm mixes of wheat, barley, rye and oats. Seller copy says up to two weeks. That is not a trial. The top pick is Cat Mommy at about £10.99, 4.2 from 80 reviews of its own, with a United Kingdom origin field. Zumula is Cyperus in a 13 cm pot. The one-pot height field says 30 cm. Zooplus Magazine warns the blades can cut a mouth. Settle that on wheatgrass versus Zumula before you buy.

What the seven listings actually contain

Webbox is one kit. The generic single is 650 g at about £9.99, though a bullet also mentions one, four or eight pots. The four-count listing is unit count 4, 2 kg, about £15.99. Variety Pack is still wheat, barley, rye and oats, not four species. Cat Mommy's three-pot title says three 12 cm pots. The items field says 4. A bullet adds rye the title omits. My Cat Grass tells its customers to avoid rye and lawn seed. That is a shop opinion, not a charity rule. The weight field is 700 g, the same figure as the one pot. Carbeth's two-pot title is two 13 cm pots at about £17.99, and that height field says 13 cm. The one-pot height field is 30 cm. Quote the ASIN you are buying.
Webbox Webbox wheatgrass kit

Testsieger

Webbox Webbox wheatgrass kit
8.8/10about £6.10
View offer

Reviews you must not add together

B08NT4HHRM and B09SNZRKHG both show 3.9 from 1,116 and the same review text. B0DGN85GY6 and B0DGQJHJM2 both show 3.9 from 392, including a complaint that the photo looked like one pot. Add the prices. Do not add the counts. Cat Mommy is separate: 4.2 from 80, and 4.0 from 175. Eliminates hairballs is a seller claim. GOV.UK says pet-food claims must be provable and must not be medicinal. None of these listings has an organic certificate. This comparison keeps about £6.10 and 4.3 from 1,768.

Which type fits the job

Buy the kit if you will wait and resow. Some trays die quickly, so about £6.10 is a poor bargain if you wanted a lawn. Water and mould are on how to grow cat grass. Buy one ready pot for tonight. The generic is about £9.99 on the shared 392 reviews. Cat Mommy is about £10.99 with its own sample. Expect a short life either way. Buy one Zumula if you will keep it moist and out of harsh sun. Skip the two-pot listing if you only wanted more reviews. A dead arrival is a Consumer Rights Act 2015 problem: photograph it and tell the seller. Transit risk sits with the trader.

Common questions

Is a seed kit the same purchase as a live pot?
No. The Webbox listing is seeds in a carton, 120 g, and reviewers talk about days of growth before a nibble. A Cat Mommy or generic cereal pot is a living 12 cm mix you can put down when you unpack it. The kit is cheaper in this comparison, at about £6.10 against about £10 to £11 for one live pot, and it asks you to sow. If you need leaves today, the kit is the wrong type even though it has more reviews.
What is Cyperus Zumula if the title says cat grass?
It is a sedge, sold by Carbeth in a 13 cm pot, not the wheatgrass in the Webbox kit and not the wheat, barley, rye and oat mix. The one-pot listing's height field says 30 cm. The care line says bright indirect light and soil kept moist. A retailer magazine warns the blades can be sharp. Treat the words cat grass on that title as a shopping label, then read the species line.
Why do two listings show the same 1,116 reviews?
Carbeth's one-pot and two-pot ASINs share the image, the rank and the review text, both at 3.9 from 1,116. The generic single pot and the four-count line do the same at 3.9 from 392. Amazon has attached one pool to two size listings. Count each pool once. The two-pot price, about £17.99, is what you pay for a second plant in the title, not for a second set of opinions.
Can I trust eliminates hairballs on the kit?
The Webbox benefits field says that. PDSA describes the hairball idea as a theory, and the reason cats eat grass as unsettled. GOV.UK says pet-food claims must be provable and must not be medicinal. Nothing in the seven listings is a trial that measured hairballs. Buy the kit for seed, a tray and a low price. Do not buy it as a treatment if the cat is already unwell.
What should I do if the pot arrives dead?
Photograph it and tell the seller straight away. A dead plant, or one unlike the listing, is a satisfactory-quality problem under the Consumer Rights Act 2015, and transit risk sits with the trader while the goods are posted. Reviews in this set already mention yellow cereal pots, heat in the van, and Zumula that yellowed after a dark journey. Waiting until the compost is dry makes that story harder to show.

Related pages

Best cat grass in this set

Cat grass plant

How to grow cat grass: sow, water, and avoid mould

Cat grass for indoor cats: a tray, not a full plan

Wheatgrass vs cat grass plant: soft blades or sedge

Sources

Public UK sources named below. amazon.co.uk prices, stars and review counts on these seven listings are the snapshot in the comparison files. A live check on 19 October 2026 had the Webbox kit nearer £6.58. Page updated 21 October 2026.

  1. PDSA, weird things cats do (retrieved 19 October 2026)
  2. PDSA, vomiting in cats (retrieved 19 October 2026)
  3. Blue Cross, why cats eat grass (retrieved 19 October 2026)
  4. Cats Protection, why cats eat grass (retrieved 19 October 2026)
  5. Cats Protection, keeping your cat safe (2025) (retrieved 19 October 2026)
  6. GOV.UK pet food (retrieved 19 October 2026)
  7. Consumer Rights Act 2015, section 19 (retrieved 19 October 2026)
  8. Zooplus Magazine, cat grass (retrieved 19 October 2026)