This article contains the various community-built decks for Citron in Plants vs. Zombies Heroes. You are free to add your decks, but please refer to the rules page first.

CitronH Nutty Beanies (created by Fairy27)

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This deck is composed of a number of beans and nuts. Although the editing of the deck is currently untested, it goes on by those two synergies. Spyris identifies the gravestones if they are worth using the Grave Buster. Gardening Gloves will keep a plant safe. Mayflower gives beans for that synergy. Snake Grass is for a bit of distraction, and Soul Patch is more likely the last resort.
Admiral Navy BeanH x4 Sting BeanH x3 Wall-NutH x4 SpyrisH x2 Grave BusterH x3
Water ChestnutH x2 Gardening GlovesH x2 Sow Magic BeansH x3 ShamrocketH x1 Pea-NutH x2
MayflowerH x2 Bean CounterH x3 Mirror-NutH x2 Navy BeanH x3 Snake GrassH x1
SmackadamiaH x2 Soul PatchH x1

CitronH Perfect Defence (created by SeraphCY)

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This deck mainly focuses on playing as many nuts as possible in the first few turns and keeping them on the field. Use Mirror Nut and Spineapple to give your opponent a headache. Boost any damaged nuts with Steel Magnolia. Tough Beets provides great firepower and defence. Any zombies that have been powered up can be bounced with Jumping Bean. Smackadamia, Water Chestnut, Guacodile and Navy Bean are great all-rounders and also make sure that you'll always have something in the water aisle. The great thing about this deck is that all cards are below Super-Rare (except for Mirror Nut).
Potato MineH x2 ShelleryH x2 Wall-NutH x4 Grave BusterH x2 Jugger-NutH x3
Water ChestnutH x4 Hibernating BearyH x3 SpineappleH x3 Steel MagnoliaH x2 GuacodileH x2
Mirror-NutH x1 Navy BeanH x2 Prickly PearH x2 Jumping BeanH x3 SmackadamiaH x2
Tough BeetsH x3

CitronH Castle Defence (created by Leoaustin24)

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This deck is about stalling until you can bring in the big guns and protect those guns as well.
Wall-NutH x4 Potato MineH x2 Admiral Navy BeanH x3 Water ChestnutH x4 Prickly PearH x2
Steel MagnoliaH x2 GuacodileH x2 CarrotilleryH x3 Bean CounterH x2 SmackadamiaH x2
Chilly PepperH x2 Lightning ReedH x1 SnapdragonH x2 Jumping BeanH x2 Grave BusterH x3
Tough BeetsH x2 Hibernating BearyH x2

CitronH I believe I can float! (created by Sumedi)

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Contains only Amphibious cards. Navy Bean will make them all big! Two are Event cards that need to be crafted.
Sting BeanH x2 Sea-ShroomH x2 Water ChestnutH x2 Pear CubH x4 GuacodileH x3
SmackadamiaH x2 Admiral Navy BeanH x3 Lightning ReedH x4 CattailH x2 MayflowerH x2
Navy BeanH x4 Jolly HollyH x4 BrainanaH x4 The Great ZucchiniH x2

CitronH Let it Go (created by ShroomstagramUser)

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Behold, a freeze deck for Citron, with some extra control properties. Even comes with an overused Frozen reference.
Iceberg LettuceH x4 SnowdropH x4 SpyrisH x3 Grave BusterH x3 Hot DateH x4
Chilly PepperH x4 Cool BeanH x2 ShamrocketH x3 Winter SquashH x4 Jolly HollyH x4
Soul PatchH x2 Winter MelonH x3
CitronH Aquatic Nuts (created by Honeyfungus)

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This deck have both amphibious plants and nuts. You can boost your amphibious plants with Navy Bean and Bog of Enlightenment, as well as guarding your nuts with Smackadamia and Mirror-Nut. Keep in mind that Smackadamia and Water Chestnut can be boosted by both. If you don't have Wall-Nut Bowling, add an extra Wall-Nut, Water Chestnut or Navy Bean. If you don't like Citron, you can switch this into a Beta-Carrotina deck. (Beta-Carrotina sticks better with amphibious plants, while Citron is better with Nuts; so think twice for which type do you prefer more.)
SpyrisH x2 Laser CattailH x2 SportacusH x3 Go-NutsH x2 MayflowerH x2
Navy BeanH x2 Forget-Me-NutsH x2 Sea-ShroomH x2 Jugger-NutH x2 Water ChestnutH x2
Mirror-NutH x2 GuacodileH x2 SmackadamiaH x3 Bog of EnlightenmentH x2 Spring BeanH x2
Gardening GlovesH x2 Grave BusterH x2 ShamrocketH x1 Doom-ShroomH x2 Wall-Nut BowlingH x1