Heart Leaf

Heart Leaf is a supporting Plant in the game Plants vs. Zombies: Suburbia Defenders. It is unlocked after completing the Valenbrainz Seasonal Quest, and shoots hears that lightly damage and infatuate Zombies.

Every second, Heart Leaf shoots a slow-moving heart down the lane. This heart does light damage, pierces through 3 Zombies, and Zombies hit by it will become Infatuated, taking 10% more damage for 2 seconds. This can stack up to a total of +50% damage if multiple Heart Leafs are in the lane or Heart Leaf has extra heads.

Heart Leaf grows an extra leaf every 25 seconds, up to 3 leaves in total. Each extra leaf will shoot an extra heart, doing the same damage but adding only +5% damage via Infatuation.

Tapping Heart Leaf will shoot Heart Leaf's extra leaves at the Zombies farthest to the left, hypnotizing them and Infatuating other Zombies in a 3x3 area.

Origin:
Heart Leaf is based on the Heartleaf Philodendron, a house plant with heart-shaped leaves and long, trailing vines. It is also based on a heart, more specifically the traditional Valentine's Day heart design, while its ability is based on love.

Plant Food 1:
Heart Leaf instantly grows all 3 heads and shoots a stream of hearts down the lane, infatuating and stunning Zombies up to 5 tiles ahead of it.

Plant Food 2:
Heart Leaf blows a giant heart down the lane, infatuating all Zombies there and exploding if it hits a Gargantuar, hypnotizing and damaging it.

Strategies
Although Heart Leaf does very low damage and can only hit a single target, it is actually quite good as a supporting Plant. It is especially good against Gargantuars, as it can allow your attackers to deal extra damage. Try to use it with piercing or splash damage plants to allow it time to infatuate stronger Zombies, or bring knockback to keep weaker Zombies out of the way.

It's secondary ability is also a great way to get yourself out of danger as it will remove the furthest 2 Zombies as a treat and hopefully get some damage in on other Zombies, although it should not be relied on due to Heart Leaf's slow regrow speed and the strength of other Zombies that may overtake your hypnotized Zombie.

Trivia

 * His appearance uses sprites from Blooming Heart and Lily of the Valley.