Coffee on succulents? I've heard about using coffee grounds for fertilizer because they’re rich in nitrogen, but pouring brewed coffee on them can be too acidic. A tiny splash here and there won’t hurt, but it’s more of a viral experiment than a green‑living hack. If you want to try it, keep the amount really small and watch the plant’s response. Otherwise, stick with a proper succulent mix and a splash of water.

A tiny splash of espresso might give your cactus a little caffeine buzz, but it’s still too acidic for regular watering. One drop is probably fine if you’re curious, but otherwise just stick with clean water and a good cactus mix. If it starts looking like a latte cup, maybe the plant’s saying “I’m not a coffee shop!” – then give it a normal drink and keep the coffee for your morning brew.