You’ll need something that can cut through small leaf stems and roots, such as a knife from your kitchen. Scissors can also be used, and if you’ve let a big plant go for a while, you many need shears to tame it. Sterilize kitchen knives before using them on your plant. You can do this by rubbing alcohol on the blade, and letting it dry.

How would you rephrase that briefly using Vietnamese?
Chuẩn bị dụng cụ cắt cây.