Plant Library
Rosemary Care Guide
Salvia rosmarinus (Rosmarinus officinalis)
By the Plantshop.com Editorial Team · Updated · How we research · Report an error
Rosemary is the easiest woody herb to keep in a pot, and it is listed as non-toxic to cats and dogs. It needs a lot of sun and good air flow.
Plant profile
- Light
- Full sun: 6+ hours
- Water
- When the top 1 in of soil is dry; do not let it dry out completely
- Humidity
- Low to average
- Pets
- Non-toxic to cats and dogs (ASPCA) [ASPCA]
- Difficulty
- Moderate
- Size
- 1-4 ft
- Growth
- Moderate
Light
Full sun: 6+ hours. Rotate the pot every few weeks so growth stays even.
Water
When the top 1 in of soil is dry; do not let it dry out completely. Always use a pot with drainage holes and empty the saucer after watering. Plants use far less water in winter.
Humidity and temperature
Humidity: low to average. Most houseplants prefer 60-80°F (16-27°C) and dislike cold drafts and heating vents.
Soil and feeding
Use a well-draining potting mix with extra grit or perlite. Feed lightly in spring and summer with a balanced houseplant fertilizer at half strength; skip feeding in winter.
Our tip
Indoor rosemary often dies in winter from dry soil plus low light; keep it on the sunniest sill and check the soil weekly.
Common problems
- Powdery white leaves: Powdery mildew from poor air flow.
- Browning needles: Dried out completely, or root rot.
- Leggy growth: Not enough light.
Pets
Non-toxic to cats and dogs (ASPCA), according to the ASPCA plant list. Check any plant in our Pet-Safe Plant Checker.
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