The Green Thumb-1 is an anti-botany, laser-emitting device capable of destroying any backyard plant, even crabgrass. It can conjure up several anti-plant tools in the form of green energy using its laser which will then destroy the plant life in front of it. It was used to destroy Mom's Garden in the episode "You Vegetabelieve It!".
- Its abilities are quite similar to the Green Lantern power ring.