Pet-Safe Plants That Grow in Just Water (No Soil, No Mess)
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Growing plants in just water is low-key genius: no soil, no fungus gnats, no repotting, and it looks super clean on a shelf. The catch for pet owners? A lot of the popular “grow in water” plants (pothos, lucky bamboo, arrowhead) are toxic. Here are the pet-safe plants you can actually grow in a glass, worry-free.
Pet-safe plants that grow in water
- Spider plant — root the baby “spiderettes” in water and leave them there or pot them up. Non-toxic.
- Fresh herbs — basil, mint, and cilantro cuttings root and grow in water (basil and cilantro are cat-safe; skip toxic ones).
- Wandering dude look-alikes — check the tag; true tradescantia is mildly toxic, so verify before you commit.
- Cat grass — technically grown in a little water-and-medium, and 100% cat-safe to graze.
Always confirm the botanical name on the ASPCA database before adding a new plant to a pet home.
Top pick: spider plant
The spider plant is the MVP of water-growing pet-safe plants: its dangling babies root fast in water, it’s nearly impossible to kill, and it’s ASPCA non-toxic to cats and dogs. Pop a spiderette in a jar, watch the roots grow, and you’ve got a clean, soil-free plant.
Roots easily in water, makes endless babies, and ASPCA non-toxic. The perfect soil-free, pet-safe plant. Learn to multiply it in our water propagation guide.
Check price on Amazon →How to grow them in water
- Use a clear glass or jar so you can watch the roots (and the water level).
- Keep the node/roots submerged, but no leaves underwater (they rot).
- Change the water every 5–7 days to keep it fresh and oxygenated.
- Bright indirect light — not harsh direct sun, which grows algae and cooks the plant.
- Optional: a drop of liquid houseplant fertilizer every few weeks for long-term water growing.
Water plants to avoid
Skip the toxic “grow in water” darlings: lucky bamboo (toxic to pets despite the name), pothos, philodendron, and arrowhead vine. See is pothos toxic to dogs? for a safe swap.
FAQ
Is lucky bamboo safe for cats?
No — lucky bamboo (Dracaena) is toxic to cats and dogs, despite the “bamboo” name. Grow a spider plant in water instead.
Can plants live in water forever?
Many can, with regular water changes and a little diluted fertilizer. Some prefer to eventually move to soil for long-term growth.
Is the water safe if my cat drinks it?
For pet-safe plants like spider plant, yes. Change it regularly so it doesn’t get stagnant.
Why is my water plant’s leaves yellowing?
Usually stale water or too little light. Refresh the water weekly and move it brighter.
The bottom line
Soil-free growing is clean, gnat-free, and honestly mesmerizing — just stick to pet-safe plants like the spider plant and safe herbs, and skip toxic lucky bamboo and pothos. A clear jar, fresh water weekly, and bright indirect light is the whole recipe.
More: how to propagate plants in water and pet-safe desk plants.
Sources
Written by Mo Ruman, a self-taught plant parent who cross-checks every plant against the ASPCA database. Not a vet — when in doubt, call yours. More about Kijani Paws · Ask me about a plant. As an Amazon Associate, Kijani Paws earns from qualifying purchases; this never affects our safety info.
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