For other uses, see Bonk Choy (disambiguation).
My spies tell me Grass Knuckles has been putting his fighters through a rigorous training regimens. Expect to face off against tough Plants ready to get buff!

Dr. Zomboss

Grass Knuckles is a plant hero in Plants vs. Zombies Heroes and the leader of the PvZH Mega-Grow IconMega-Grow and PvZH Guardian IconGuardian classes. His signature superpower is Power Pummel, which does 2 damage in all ground lanes. If there is no zombie on a ground lane, the zombie hero takes damage there instead.

He is the hero version of Bonk Choy.


Bonk Choy2

He is based on the plant in Plants vs. Zombies 2 with a similar appearance.

His name is a portmanteau of "grass," a name that refers to many species of plants in the family Poaceae, and "brass knuckles," weapons that fit around the knuckles and are used in hand-to-hand combat, referring to how the plant he is based on attacks.


Hero description

He's the best at what he does... and what he does is punching!

Strategies strategy

Grass Knuckles starts with "Bullseye" Plants that ignore enemy Super-Blocks. Then he grows them larger with powerful Mega-Grow effects - a nasty one-two punch!


Despite a rather odd combination of classes, Grass Knuckles' unorthodox combo of classes is very potent. With the Mega-Grow class providing boosting methods and the Guardian class giving access to tough plants, Grass Knuckles can prove to be a very tough foe.

Since many Mega-Grow plants need time to be strong, Grass Knuckles can protect them with high-health Team-Up plants from the Guardian class such as Wall-Nuts, even when they are boosted. Likewise, he can use Mega-Grow tricks such as Fertilize to boost up what are usually defensive plants to make them able to attack the zombies, or even boost low-strength Guardian plants.

You can use Potted Powerhouse on this hero as well. With PvZH Mega-Grow IconMega-Grow boost options like Grow-Shroom, Fertilize, Plant Food, The Podfather, Torchwood, Cabbage-Pult, and Bonk Choy; plus PvZH Guardian IconGuardian boosters like Steel Magnolia, Spineapple, and Smackadamia; it is very easy to boost Potted Powerhouse to an unbelievably mighty fighter for you to use, potentially finishing the game off in your favor.

Due to his peculiar class combo, Grass Knuckles can perform many beneficial synergies, with some at their strongest when under his use. A root deck with Starch-Lord and other root plants is useful, as Grass Knuckles has the most root cards out of all heroes (with the exclusion of superpowers). A pea deck is also lethal, as Grass Knuckles also has the most pea cards out of any hero (again, superpowers are excluded), thanks to the addition of Three-Nut, although it is not recommended to use it in a pea deck.

He can also protect a boosted plant with Root Wall so that it cannot take any damage for one turn. This is especially useful for Soul Patch. His signature superpower, Power Pummel, is useful for taking down weak zombies on the ground lanes or doing up to 6 damage to the zombie hero (though in some missions, the amount of damage changes depending on how many ground lanes there are). This is also useful for protecting plants.

Another good strategy to use with Grass Knuckles is boosting plants with PvZH Truestrike IconBullseye such as Sting Bean, Cactus, and Jugger-Nut, and then having them do bonus attacks by using Time to Shine or Plant Food to be able to do large amounts of damage to the zombie hero without charging their Super-Block Meter.

Grass Knuckles' weakness, however, is that he lacks reliable methods to stop early to mid-game rushes from the zombie hero, meaning that he will have a hard time dealing with Impfinity, Electric Boogaloo, or Professor Brainstorm's rush decks. Grass Knuckles does not have access to damaging tricks (aside from his signature superpower, Power Pummel) such as Banana Bomb and Berry Blast. Additionally, he does not have many instant-kill tricks, like Tactical Cuke or Whack-a-Zombie. While he does have Shamrocket and Doom-Shroom, these tricks will not help him fight rushes, unless your opponent strengths them en masse. To stop a rush deck, Grass Knuckles must fight fire with fire, boosting his plants in an effort to save himself. In addition, clever usage of bonus attacks will enable Grass Knuckles to weaken or even shut down rush decks. Using Power Pummel can prove very helpful, being the only damaging trick he possesses, despite being single-use.


Always be one step ahead of Grass Knuckles, as he is able to easily boost his plants. As with other Guardian heroes, it is often best to defeat him quickly as he will become aggressive in the late-game. If he uses Power Pummel, make sure that you have a zombie in each ground lane, especially in The Foe with the Furious Fists, or your hero will take a lot of damage. If Grass Knuckles puts down plants like Black-Eyed Pea or Doubled Mint, use tricks like Locust Swarm or Super Stench in order to destroy them before they become too much of a problem.

Bullseye Beatdown

This deck focuses on boosting PvZH Truestrike IconBullseye plants with various ways and ensuring that they hit you by either moving your zombies with Banana Peel and destroying zombies blocking their way with Grave Buster and bonus attacks via Plant Food. Destroy his plants as quickly as you can with Rolling Stone or Weed Spray, or else they will grow out of the aforementioned tricks' reach. Rustbolt would be the best counter for this deck, as he has access to Rocket Science in case something goes wrong.

Mossive Damage

This is Grass Knuckles' combo deck of Party Thyme, Re-Peat Moss, and Bananasaurus Rex. Bonk Choy provides early firepower, while Jugger-Nut and Pear Cub are able to stall zombies a few turns. Bonus Track Buckethead is a perfect counter for this deck as it shuts down the combo and leave you less to deal with. Also, PvZH Deadly IconDeadly zombies and instant-kills in the PvZH Brainy IconBrainy and PvZH Beastly IconBeastly classes will take care of boosted plants, while Quickdraw Con Man penalizes Grass Knuckles for every card drawn.

Flex Your Muscles

Grass Knuckles will attempt to play or make many plants on the field to boost Muscle Sprout, and can even play Onion Rings to give his weak plants a head start. If you don't take care of them quickly, he will then punish you by playing Super-Phat Beets and Tough Beets. Any Brainy hero would be a good counter due to Rocket Science. Also, due to his lack of card draw excluding Starch-Lord, he will have to either conserve his cards for a few turns, or leave his defenses to a few plants. You can also take the opportunity and rush him if he chooses to do that.

Cosmic Conjuring

Instead of drawing cards to boost Bananasaurus Rex, Grass Knuckles has a plethora of Conjuring cards like Banana Peel, Photosynthesizer, and Starch-Lord, with all the Conjured cards being cheaper thanks to Captain Cucumber, who will also Conjure more legendary cards. Since the main Conjurers, Starch-Lord and Captain Cucumber have low stats, destroy them with damaging tricks or Rolling Stone, but watch out for Black-Eyed Pea. Quickdraw Con Man can also punish him for Conjuring cards if you have enough of them on the field.

Leaf My Dinos Alone!

This deck focuses on drawing cards with Typical Beanstalk and Bamboozle, but also leafy synergy with Savage Spinach and Typical Beanstalk. Your opponent will try to play Savage Spinach on Pea Patch, boosting Savage Spinach and all plants in their hand. Since there are also many leafy plants in the deck, Typical Beanstalk can activate its ability more easily, which boosts any Dino-Roar plants and Potted Powerhouse too. This means that you will have many powerful plants to deal with. Playing tricks is not very recommended, as Umbrella Leaf and Apotatosaurus are in the deck. Instead, PvZH Deadly IconDeadly zombies are the way to go, as their attacks can instantly destroy the boosted plants, but you should watch out for Plant Food. Super Brainz and Huge-Gigantacus are recommended, as they can make the zombies do bonus attacks. Or, if you can hold on until turn 9, Zombot 1000 can wipe them all out.

Strategy decks

Main article: Community-built decks/Grass Knuckles
Grass KnucklesH Bullseye Beatdown

PvZH Mega-Grow Icon PvZH Guardian Icon
Grow your Bullseye Plants - Jugger-Nut, Cactus, and Sting Bean - extra big so they can hit extra hard and quickly dispatch the Zombie Hero.
Banana PeelH x2 Galacta-CactusH x4 Sting BeanH x4 CactusH x4 Grave BusterH x1
Jugger-NutH x4 Lily of the ValleyH x3 FertilizeH x4 Grow-ShroomH x4 Bananasaurus RexH x4
Plant FoodH x3 Body-GourdH x3

Grass KnucklesH Mossive Damage

PvZH Mega-Grow Icon PvZH Guardian Icon
Play your Tricks right and Re-Peat Moss will repeatedly attack the Zombie for massive damage. Get in on the Bonus Attack action with Bananasaurus Rex and Party Thyme and refill you hand at the same time.
Banana PeelH x1 Bonk ChoyH x1 Party ThymeH x3 PhotosynthesizerH x3 Doubled MintH x4
Grave BusterH x2 Jugger-NutH x4 FertilizeH x4 Pear CubH x4 Bananasaurus RexH x3
Plant FoodH x3 Re-Peat MossH x4 Onion RingsH x4

Grass KnucklesH Flex Your Muscles

PvZH Mega-Grow Icon PvZH Guardian Icon
Play Poppin' Poppies and Banana Splits to really pump up your Muscle Sprouts. Things get wild when you buff your Doubled Mint, Pear Cub, and even Potato Mines with Onion Rings.
GarlicH x4 Potato MineH x2 Doubled MintH x4 Lily of the ValleyH x4 Muscle SproutH x4
Pear CubH x4 Banana SplitH x3 Starch-LordH x4 Onion RingsH x4 Tough BeetsH x2
Poppin' PoppiesH x2 Super-Phat BeetsH x1 Soul PatchH x2

Grass KnucklesH Cosmic Conjuring

PvZH Mega-Grow Icon PvZH Guardian Icon
Flood the field with lots of low-cost cards and keep your hand topped off by constantly conjuring cards. With all of this extra draw, Bananasaurus Rex becomes downright deadly!
Banana PeelH x3 Bonk ChoyH x3 GarlicH x4 PhotosynthesizerH x3 Black-Eyed PeaH x4
Lily of the ValleyH x4 Spikeweed SectorH x1 Captain CucumberH x4 Cosmic PeaH x1 Bananasaurus RexH x4
Cosmic NutH x1 Starch-LordH x4 Plucky CloverH x4

Grass KnucklesH Leaf My Dinos Alone!

PvZH Mega-Grow Icon PvZH Guardian Icon
Leafy Plants like Typical Beanstalk and Savage Spinach work together well. Their growth in size fuels Potted Powerhouse, while their card draw pumps up three kinds of Dinosaur Plants!
Bonk ChoyH x4 PhotosynthesizerH x1 Umbrella LeafH x1 Doubled MintH x1 Pea PatchH x4
TricarrotopsH x4 Muscle SproutH x4 ShamrocketH x1 Bananasaurus RexH x1 Plant FoodH x1
Savage SpinachH x4 Typical BeanstalkH x4 Plucky CloverH x1 Potted PowerhouseH x4 ApotatosaurusH x4
BamboozleH x1


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  • He could be based on the concept of Grass Knuckles from Plants vs. Zombies Adventures.
  • The punching bag that appears on the comic strip after the player receives Grass Knuckles has the face of the balloon that the Balloon Zombie uses.
  • He shares his battle music with Wall-Knight.
  • In the first comic strip the player receives, it shows that a Peashooter and three other plants get turned into heroes at the same time, as one of them is Grass Knuckles.
    • However, Grass Knuckles has his own "Introducing" comic strip, in a different manner from how he was transformed.
  • Some of his idling and worrying animation is based on the drawings of him in Chinese Plants vs. Zombies comics.
  • In the comic strip where the player receives Grass Knuckles, he is shown to be in the same Bonk Choy Boxing place in one of the extra comics.
  • His signature superpower, Power Pummel, resembles his counterpart's Plant Food animation in Plants vs. Zombies 2.
  • Grass Knuckle is the only hero to have their Colossal Strategy Deck completely changed, from "Dino-Crush" to "Leaf My Dinos Alone!".
V · T · E Plants in Plants vs. Zombies Heroes
PvZH Guardian Icon Guardian
Heroes Citron · Grass Knuckles · Spudow · Wall-Knight · Beta-Carrotina
Common Small-Nut · Sting Bean · Wall-Nut · Pismashio · Spineapple
Premium Potato Mine · Cactus · Gardening Gloves · Sea-Shroom · Water Chestnut · Pea-Nut · Steel Magnolia
Galactic Photosynthesizer · Spikeweed Sector · Plantern
Colossal Grape Responsibility · Primal Potato Mine
Triassic Grizzly Pear
Premium Grave Buster · Hibernating Beary · Prickly Pear · Smackadamia · Tough Beets
Galactic Cosmic Nut · Starch-Lord
Colossal Blockbuster
Triassic Pumpkin Shell
Premium Jugger-Nut · Mirror-Nut · Guacodile · Doom-Shroom
Galactic Galacta-Cactus · Force Field · Gravitree
Colossal Three-Nut
Triassic Marine Bean · Primal Wall-Nut
Premium Poppin' Poppies · Soul Patch · Wall-Nut Bowling
Galactic Body-Gourd · Pecanolith
Colossal Tricarrotops
Triassic Loco Coco
Event Cards Forget-Me-Nuts · Garlic · Corn Dog · Hot Date · Health-Nut · Pear Cub · Shamrocket · Red Stinger
Token Cards Hothead
Superpowers Peel Shield · Power Pummel · Tater Toss · Uncrackable · Genetic Amplification · Bubble Up · Nut Signal · Root Wall · Ensign Uproot
PvZH Kabloom Icon Kabloom
Heroes Nightcap · Captain Combustible · Solar Flare · Spudow
Common Button Mushroom · Berry Blast · Buff-Shroom · Seedling · Zapricot
Premium Poison Mushroom · Berry Angry · Mushroom Ringleader · Poison Ivy · Pair of Pears · Bluesberry · Sizzle
Galactic Banana Bomb · Mushroom Grotto · Invasive Species
Colossal Puff-Shroom
Triassic Veloci-Radish Hatchling · Hot Lava
Premium Shroom for Two · Wild Berry · Petal-Morphosis · Sour Grapes · Poison Oak
Galactic Cosmic Mushroom · Lava Guava
Colossal Cro-Magnolia
Triassic Shelf Mushroom
Premium Punish-Shroom · Sergeant Strongberry · Cherry Bomb · Grapes of Wrath
Galactic Astro-Shroom · Banana Launcher · Pair Pearadise
Colossal Fireweed · Imitater
Triassic Strawberrian
Premium Pineclone · Dandy Lion King · Kernel Corn
Galactic Reincarnation · Molekale
Colossal Gloom-Shroom
Triassic Veloci-Radish Hunter
Event Cards Blooming Heart · High-Voltage Currant · Sonic Bloom · Transfiguration · Atomic Bombegranate · Electric Blueberry
Token Cards Hothead
Superpowers Mush-Boom · Blazing Bark · Tater Toss · Sunburn · Meteor Strike · More Spore · Storm Front
PvZH Mega-Grow Icon Mega-Grow
Heroes Chompzilla · Grass Knuckles · Green Shadow · Captain Combustible
Common Peashooter · Torchwood · Cabbage-Pult · Fertilize · Flourish · Grow-Shroom · Repeater
Premium Bonk Choy · Pea Pod · Sweet Potato · Fire Peashooter · Skyshooter
Galactic Coffee Grounds · Sweet Pea · Vegetation Mutation
Colossal Umbrella Leaf
Triassic Half-Banana · Typical Beanstalk
Premium The Podfather · Plant Food · Re-Peat Moss · Whipvine · Super-Phat Beets
Galactic Banana Peel · Cosmic Pea
Colossal Bamboozle
Triassic Pea Patch
Premium Party Thyme · Black-Eyed Pea · Potted Powerhouse · Espresso Fiesta
Galactic Moonbean · Pod Fighter · The Red Plant-It
Colossal Split Pea · Grape Power
Triassic Savage Spinach
Premium Doubled Mint · Muscle Sprout · Bananasaurus Rex
Galactic Captain Cucumber · Onion Rings
Colossal Gatling Pea
Triassic Apotatosaurus
Event Cards Clique Peas · Lily of the Valley · Banana Split · Plucky Clover
Superpowers Devour · Power Pummel · Precision Blast · Blazing Bark · Embiggen · Holo-Flora · Time to Shine
PvZH Smarty Icon Smarty
Heroes Citron · Nightcap · Green Shadow · Rose · Beta-Carrotina
Common Snowdrop · Weenie Beanie · Snow Pea · Cattail · Smoosh-Shroom · Threepeater
Premium Iceberg Lettuce · Shellery · Rescue Radish · Spring Bean · Vanilla · Carrotillery
Galactic Mars Flytrap · Planet of the Grapes · Leaf Blower
Colossal Grave Mistake · Pear Pal
Triassic Primal Peashooter
Premium Admiral Navy Bean · Lightning Reed · Chilly Pepper · Navy Bean · Jumping Bean
Galactic Cosmic Bean · Melon-Pult
Colossal Tricorn
Triassic Lily Pad
Premium Sow Magic Beans · Bean Counter · Snapdragon · Winter Squash
Galactic Laser Cattail · Bog of Enlightenment · Cool Bean
Colossal Jelly Bean
Triassic Rotobaga · Shrinking Violet
Premium Brainana · Winter Melon · The Great Zucchini
Galactic Shooting Starfruit · Dark Matter Dragonfruit
Colossal Lima-Pleurodon
Triassic Bird of Paradise
Event Cards Spyris · Go-Nuts · Mayflower · Sportacus · Snake Grass · Witch Hazel · Jolly Holly · Sap-Fling
Token Cards Magic Beanstalk · Sappy Place
Superpowers Peel Shield · Mush-Boom · Precision Blast · Goatify · Genetic Amplification · Big Chill · Transmogrify · Whirlwind · Lieutenant Carrotron · Lightspeed Seed
PvZH Solar Icon Solar
Heroes Chompzilla · Rose · Solar Flare · Wall-Knight
Common Bellflower · Sunflower · Mixed Nuts · Squash · Smashing Pumpkin
Premium Morning Glory · Fume-Shroom · Pepper M.D. · Water Balloons · Venus Flytrap · Bloomerang · Metal Petal Sunflower
Galactic Cosmoss · Apple-Saucer · Venus Flytraplanet
Colossal Kernel-Pult
Triassic Lil' Buddy · Sunnier-Shroom
Premium Sage Sage · Whack-a-Zombie · Lawnmower · Magnifying Grass · Power Flower
Galactic Cosmic Flower · Heartichoke
Colossal Elderberry
Triassic Eyespore
Premium Twin Sunflower · 2nd-Best Taco of All Time · Chomper · Laser Bean
Galactic Solar Winds · Wing-Nut · Tactical Cuke
Colossal Primal Sunflower · Sunflower Seed
Triassic Sun Strike
Premium Briar Rose · Three-Headed Chomper · Cornucopia
Galactic Astrocado · Astro Vera
Colossal Cob Cannon
Triassic Aloesaurus
Event Cards Haunted Pumpking · Sun-Shroom · Jack O' Lantern · Ketchup Mechanic · Toadstool
Token Cards Astrocado Pit
Superpowers Devour · Goatify · Sunburn · Uncrackable · Geyser · Scorched Earth · Weed Whack
Superpowers Flick-a-Zombie · Inspire · Rejuvenate
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