While real Christmas trees can be safe for cats, there are some important precautions to take to ensure their safety. Cats may be attracted to the scent of the tree and may try to climb it or chew on the branches, which can be hazardous. It's important to keep the tree well-watered and secured to a sturdy base so it doesn't fall over. Additionally, keep any ornaments or decorations out of reach of your cat, and consider using non-toxic ornaments and decorations to prevent accidental ingestion. Finally, monitor your cat closely around the tree and remove them if they start to climb or chew on it.