Stunion is the fourth plant obtained in Frostbite Caves in Plants vs. Zombies 2. He is a single-use plant and when zombies get close to him, he releases a cloud of gas in a 1x2 area in front of himself, similar to the one emitted from a zombie defeated by Chili Bean, stunning the affected zombies for 12 seconds. The gas cloud does not affect mechanical enemies, except for Zombie Bulls, Gargantuar Primes, Treasure Yetis, and Bug Bot Imps.
Origins

Stunion is based on the onion (Allium cepa), which is usually used as an ingredient in cooking, thanks to its distinctively pungent taste and aroma. His name is a portmanteau of "stun," an act of driving someone into an unconscious or semi-conscious state, and "onion," the plant he is based on
His description may be a reference to Shrek, with the saying, "onions have layers."
Almanac entry
Stunion
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Stunion
SUN COST: 25
RECHARGE: 20
TOUGHNESS: 300
RANGE: Close
FAMILY: Contain-mint
Stunions breathe a stunning cloud of gas on nearby zombies in the lane.
Usage: single use, activates when zombie is close
Special: stuns nearby zombies
Oh sure, everyone knows Stunion as the battle-hardened warrior with the potent breath. But he's so much more than that. He's an accomplished pianist. He speaks five languages fluently. Heck, he's the leader of a Cub Shallots group in his spare time. Dude's got layers. Go on, peel 'em back. You'll see.
Upgrades

Plant Food ability (animated)
Plant Food effect
When fed Plant Food, Stunion will release a burst of gas in a 3x4 area in front of him, stunning all zombies in the said space for 18 seconds.
Contain-mint effect
When boosted by Contain-mint, Stunion will poison zombies he stunned if he is not at level 5+, and his poison damage is increased by 50 DPS.
Costumed (China only)
Stunion now releases a burst of purple gas in a 3x5 area in front of him, stunning affected zombies for twice as long.
Level upgrade
Level | Seed Packets | Coins | Upgrades | |||||
---|---|---|---|---|---|---|---|---|
Sun Cost | Recharge (Sluggish) |
Starting Recharge |
Toughness (Typical) |
Special (Poison)* |
Range | |||
1 | 0 | 0 | 25 | 20 seconds | 15 seconds | 300 dps | N/A | Close |
2 | 10 | 1,000 | 19 seconds | 14 seconds | 350 dps | |||
3 | 75 | 5,000 | 18 seconds | 13 seconds | 400 dps | |||
4 | 200 | 10,000 | 17 seconds | 12 seconds | 450 dps | |||
5 | 400 | 20,000 | 16 seconds | 11 seconds | 550 dps | 25 dps | ||
6 | 750 | 30,000 | 15 seconds | 10 seconds | 600 dps | 30 dps | ||
7 | 1,000 | 40,000 | 14 seconds | 9 seconds | 650 dps | 35 dps | ||
8 | 1,250 | 50,000 | 0 | 14 seconds | 9 seconds | 700 dps | 40 dps | |
9 | 1,500 | 60,000 | 13 seconds | 8 seconds | 800 dps | 45 dps | ||
10 | 2,000 | 75,000 | 12 seconds | 7 seconds | 900 dps | 50 dps |
*After reaching Level 5, Stunion will gain the ability to poison the zombies it stunned. This applies to both normal and Plant Food state. This column will show the damage-per-second the effect deals on the affected zombies. Its poison duration is the same as its stun duration.
Mastery upgrades
- Chance to Boost
- Damage Pierce
Level upgrade (China only)
Strategies
Compared to Iceberg Lettuce, Stunion can stun all zombies in his area of effect instead of just one target. The stunning effect is not nullified by fire-based plants and also works in Frostbite Caves, where Iceberg Lettuce can only slow instead of stop enemies. In most cases, though, his slightly bigger price will not matter. On the other hand, his Plant Food effect is significantly worse—while Iceberg Lettuce's plant food ability affects the entire screen, Stunion's plant food ability only affects a limited area.
Stunion is a good choice against Chicken Wrangler Zombie and Weasel Hoarder, as he can stun them and prevent them from releasing Zombie Chickens or Ice Weasels, even when they are defeated.
In Dark Ages, Stunion can be used to prevent Jester Zombie from reflecting projectiles. However, the same is not true for Parasol Zombie and Excavator Zombie in Lost City, as they can neutralize projectiles even when stunned. If using Stunion against MC Zom-B during rap, make sure to plant him on the square that MC Zom-B is on or the one in front, otherwise MC Zom-B can kill him with his microphone which has longer effective range.
Stunion should not be used in tandem with Primal Peashooter, as the latter's knockback will remove the stun effect, rendering Stunion useless. Iceberg Lettuce should be used in this situation instead, since its freezing effect is not interfered by Primal Peashooter.
Stunion also works well with Primal Potato Mine since he stops the zombies whilst the Primal Potato Mine arms, creating a cheaper Cherry Bomb.
At Level 5 and above, Stunion gains an armor-piercing poison effect akin to Shadow-shroom on stunned zombies and thus can be used more offensively against weaker zombies and headwear zombies. A single use can defeat Chicken Wrangler Zombies and Weasel Hoarders without releasing their animals due to the stun, and also kills headwear zombies in one use. At Level 8 and above, Stunion becomes free, allowing the plant to be used more frequently, especially during levels in which there is a maximum amount of sun to spend, including Last Stand levels.
Avoid using this plant in Far Future, as the mechanical enemies are immune to the gas cloud and therefore, wasting a seed slot.
Gallery
Plants vs. Zombies Wiki has a gallery for Stunion.
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In other languages
Language | Name | Description |
---|---|---|
Stunion | ||
眩晕洋葱 | ||
Chlingognion | ||
Zwierbel | ||
Pesticipolla | ||
Cebafão | ||
Cebolla aturdidora |
Trivia
- He can stun flying zombies, unlike Iceberg Lettuce and Chili Bean.
- When he despawns, the Puff-shroom's disappearance audio is also heard.
- If he stuns a zombie and that zombie dies before the effect is gone, the gas sprite despawns, but the zombie's body will just remain there, standing still until the stun effect ends and the body collapses.
- If a stunned zombie is pushed back by Hurrikale and lands up on a slider tile, he will remain there until the gas disappears.
- For a brief moment after stunning, he can be shoveled for sun.
- He shares this trait with Ghost Pepper, Grimrose, and Shrinking Violet.
See also
V · T · E | L · G |
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Plants vs. Zombies | |
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Day | Peashooter · Sunflower · Cherry Bomb · Wall-nut · Potato Mine · Snow Pea · Chomper · Repeater |
Night | Puff-shroom · Sun-shroom · Fume-shroom · Grave Buster · Hypno-shroom · Scaredy-shroom · Ice-shroom · Doom-shroom |
Pool | Lily Pad · Squash · Threepeater · Tangle Kelp · Jalapeno · Spikeweed · Torchwood · Tall-nut |
Fog | Sea-shroom · Plantern · Cactus · Blover · Split Pea · Starfruit · Pumpkin · Magnet-shroom |
Roof | Cabbage-pult · Flower Pot · Kernel-pult · Coffee Bean · Garlic · Umbrella Leaf · Marigold · Melon-pult |
Upgrades | Gatling Pea · Twin Sunflower · Gloom-shroom · Cattail · Winter Melon · Gold Magnet · Spikerock · Cob Cannon |
Others | Imitater · Explode-o-nut · Giant Wall-nut · Giant Sunflower · Giant Marigold · Sprout · Tree of Wisdom |
Plants vs. Zombies: Social Edition | |
---|---|
Normal | Peashooter · Sunflower · Cherry Bomb · Wall-nut · Potato Mine · Chomper · Repeater · Puff-shroom · Scaredy-shroom · Snow Pea · Sun-shroom · Fume-shroom · Grave Buster · Lily Pad · Squash · Spikeweed · Tangle Kelp · Torchwood · Sea-shroom · Jalapeno · Coffee Bean · Tall-nut · Pumpkin · Magnet-shroom · Blover · Melon-pult · Cactus |
Premium | Pickled Pepper · Icy Fume-shroom · Fire-shroom · Flamewood · Vine-nut · Gatling Pea · Twin Sunflower · Gloom-shroom · Winter Melon · Super Chomper · Future Star · Calm Chuck |
Plants vs. Zombies Adventures | |
---|---|
>Normal | Peashooter · Sunflower · Aspearagus · Wall-nut · Cherry Bomb · Popcorn · Beet · Snow Pea · Jalapeño · Magnet Plant · Flaming Pea · Shamrock · Bamboo Shoot · Repeater · Chilly Pepper · Twin Sunflower |
VIPs | Sweet Pea · Beeshooter · Hard-nut · Acespearagus · Power Flower · Beetboxer · Ice Queen Pea · Shamrockstar · Bamboom |
Others | Trees |
Plants vs. Zombies 2 (Chinese version) | |
---|---|
Ancient Egypt | Peashooter · Sunflower · Wall-nut · Cabbage-pult · Bloomerang · Iceberg Lettuce · Grave Buster · Bonk Choy · Repeater · Twin Sunflower · Snow Pea · Cherry Bomb · Torchwood |
Pirate Seas | Kernel-pult · Snapdragon · Power Lily · Spikeweed · Spring Bean · Coconut Cannon · Spikerock · Lightning Reed · Tall-nut |
Wild West | Threepeater · Squash · Split Pea · Chili Bean · Jalapeno · Pea Pod · Melon-pult · Winter Melon · Imitater |
Kongfu World | Radish · Fire Gourd · Heavenly Peach · Bamboo-shoot |
Far Future | Laser Bean · Blover · Citron · E.M.Peach · Infi-nut · Magnifying Grass · Tile Turnip · Starfruit |
Dark Ages | Hypno-shroom · Sun-shroom · Puff-shroom · Fume-shroom · Sun Bean · Pea-nut · Magnet-shroom · Oak Archer · Coffee Bean · Plantern |
Big Wave Beach | Acidic Citrus · Lotuspot · Lily Pad · Bowling Bulb · Banana Launcher · Guacodile · Tangle Kelp · Homing Thistle |
Frostbite Caves | Hurrikale · Fire Peashooter · Hot Potato · Pepper-pult · Chard Guard · Stunion · Rafflesia · Tornacorn |
Sky City | Rotobaga · Cycloque · Aspiragus · Saucer Squash · Board Beans · Lantern Cherry · Ampthurium · Spinnapple |
Lost City | Lava Guava · Red Stinger · A.K.E.E. · Stallia · Gold Leaf · Toadstool · Jackfruit |
Neon Mixtape Tour | MC Glory · Phat Beet · Thyme Warp · Celery Stalker · Spore-shroom · Garlic · Intensive Carrot · Cactus |
Jurassic Marsh | Primal Peashooter · Primal Wall-nut · Perfume-shroom · Primal Sunflower · Primal Potato Mine · Primal Rafflesia · Dinonip · Thorns · Mastercane |
Modern Day | Shadow-shroom · Caulipower · Moonflower · Grimrose · Nightshade · Dusk Lobber · Blooming Heart |
Steam Ages | Gold Bloom · Flat-shroom · Passionflower · Lotus Root · Fanilla · Lily of Alchemy · Berry Blaster |
Renaissance Age |
Aloe · Kinnikannon · Wax Guard · Oil Olive · Ruby Red · Dartichoke |
Heian Age | Sumo Melon · Wasabi Whip · Auberninja · Dripphylleia · Splitting Stephania · Kunai Tupistra · Windbreak Dendrobium · Orchid Chef · Geisha Flower · Stickybomb Rice |
Fairytale Forest | Ents · Heath Seeker · Hat Mushroom |
Monthly special | Pyro-shroom · Carrotillery · Cryo-shroom · Dandelion · Aggro Brocco · Pomegunate · Chomper · Sweet Potato · Lord Bamboo · Sap-fling · Ghost Pepper · Chest-nut · Bambrook · Zorrose · Magic-shroom · Electric Blueberry · R.A.D Missiles · Endurian · Pumpkin Witch · Sunflower Singer · Snowy Cotton · Guerrequila · Monkeyfruit · Plumping Plummy · Dragonfruit · Angel Starfruit · Gatling Pea · Match Flower · Firebloom Queen · Cattail · Grapeshot · Cold Snapdragon · Shrinking Violet · Cob Cannon · Apple Mortar · Witch Hazel · Escape Root · Electric Currant · Explode-O-Nut · Parsnip · Missile Toe · Kiwibeast · Electric Peashooter · Hot Date · Icy Currant · Trump Tulip · Banana Dancer · Dual Pistol Pinecone · Narcissus · Alarm Arrowhead · Holly Barrier · Shadow Peashooter · Snap Pea · Frostbloom Queen · Sling Pea · Zapdragon · Electrici-tea · Imp Pear · Strawburst · Egrett Flower · Goo Peashooter · Bud-minton · Curling Corms · Pokra · Dollarweed Drummer · Ultomato · Shadow Fanilla · Bromel Blade · Gumnut · Olive Pit · Nuclear Earthstar · Headbutter Lettuce · Dazey Chain · Boom Balloon Flower · Soda Bottle Palm · Tiger Claw · Impaintiens · Turkey-pult · Hammerflower · Fishhook Grass · Mangosteen · Inferno · Tigerstool · Gardenergrass · Draftodil · Hocus Crocus |
Others | Potato Mine · Flower Pot · Tactical Cuke |
Removed | Rotten Red |
Plants vs. Zombies Online | |
---|---|
Player's House | Sunflower · Peashooter · Wall-nut · Potato Mine |
Qin Shi Huang Mausoleum | Bruce Bamboo · Carrot Rocket · Pomegranate-pult · Dandelion · Venus Flytrap · Wax Gourd · Sod |
Ancient Egypt | Bloomerang · Bonk Choy · Grave Buster · Iceberg Lettuce · Cabbage-pult |
Pirate Seas | Snapdragon · Spikeweed · Spring Bean · Kernel-pult · Coconut Cannon · Narcissus · Endurian · Spikerock · Pineapple Cannon · Threepeater |
Far Future | Laser Bean · Blover · Citron · E.M.Peach · Tile Turnip · Ganoderma · Banana Tree · Nitro-shroom · Infi-nut · Magnifying Grass |
East Sea Dragon Palace | Oxygen Algae · Garlic · Bubble Flower · Electric Anemone |
Upgrades | Twin Sunflower · Repeater |
VIPs | Winter Melon |
Power Ups | Cherry Bomb · Jalapeno |
Premium | Squash · Snow Pea · Tall-nut |
Adventure Mode only | Magic Vine · Split Pea · Chili Bean · Lightning Reed · Pea Pod · Melon-pult · Starfruit · Chomper · Fire Peashooter · Cattail · Zorrose · Clivia · Sap-fling · Acidic Citrus · Magic-shroom · Ghost Pepper · Guacodile · Hurrikale · Plantern · Oak Archer · Homing Thistle · Pepper-pult · Radish · Toadstool · Blooming Heart · Red Stinger · Electric Blueberry · A.K.E.E. · Moonflower · Guerrequila · Aspiragus · Pumpkin Witch · Mine Fruit · Sea Anemone · Lychee Drill · Sea Starfruit |
Plants vs. Zombies 3 | |
---|---|
Neighborville | Sunflower · Wall-Nut · Bamboo Shoots · Peashooter · Bonk Choy |
Lost Keys Lake | Lily Pad · Tangle Kelp · Squash |
Mt. Quesogrande | Chili Bean · Silversword · Cabbage-Pult |
Power-Ups | Grapes of Wrath · Chilly Pepper · Jalapeño · Cherry Bomb · Blover |
Pre-2021 | Puff-Shroom · Buttercup · Garlic · Potato Mine · Pushywillow · Chard Guard · Spikeweed · Kernel-Pult · Caramel Popcorn · Lightning Reed · Melon-Pult · Shuffle Truffle · Blockbuster · Butternut Squash · Ragweed · Sawgrass · Fire Peashooter · Pine Needler · Snow Pea · Night Cap · Aloe Vera · Sweet Potato · Hydrangea · Dogwood · Chomper · Flak Seed · Gravitree · Gloom-Shroom · Lemon-Aid · Starfruit · Snapdragon · Fairy Ring Mushroom · Kalestorm · Star Tree · Magic Beans |