In the original Plants vs. Zombies, a Tall-nut can withstand 8,000 points of damage before it is destroyed. That makes it one of the toughest defensive plants in the game and gives it twice the durability of a standard Wall-nut.
Tall-nut is not merely a stronger-looking Wall-nut. Its extra height also prevents several jumping or vaulting zombies from bypassing it. Pole Vaulting Zombies, Dolphin Rider Zombies, and Pogo Zombies are forced to stop and attack it rather than clearing it in their usual way. This makes Tall-nut especially valuable in levels where those movement abilities are central threats.
The plant costs 125 sun and is unlocked after completing level 3-8. As it takes damage, its appearance changes through visibly damaged stages, giving the player a rough visual indication of its remaining durability. Players sometimes quote 4,000 because that is the original Wall-nut’s toughness, or confuse the figure with statistics from later games and versions. For the original game, 8,000 is the canonical figure.