Sunflower seed is a story plant, that you will be able to receive on the first location. It will give you an opportunity to... place sunflowers (real)
The Yard Knight is a new early-game bad guy! Like many other zombies from the first location, he will wear strong armor, but in addition, after passing a few tiles, he will launch the armature forward, and it will land on one of the plants from behind, causing considerable damage
Tired zombie rolls forward hurriedly, crushing small plants. When colliding with a plant, it does decent damage and stops. Bursts on contact with Spikeweed and Sawgrass.
Bolty squad is well-armored and fast version of basic zombies, minions of Rustbolt
Bats are really fast flying zombies, minions of Immorticia
Small zombies are weak and fast evil versions of basic zombies, minions of Impfinity