Light
Bright, indirect
Ideal spot
Tillandsia caput-medusae · Air plant · pet-safe
Bright, indirect
Ideal spot
about weekly
In the growing season
Easy
Slow grower
Safe
Cats & dogs
Medusa's Head (Tillandsia caput-medusae) belongs to the Bromeliaceae family and is a easy houseplant to look after. This slow grower plant is happiest in bright, indirect and reaches 10–25 cm indoors.
For watering, the rule is simple: let the top dry out. In the growing season it needs water roughly every 5 days, dropping to every 8 days in winter. Use the watering calculator below to tune that rhythm to your pot size, light and household humidity.
Good news for pet owners: Medusa's Head is listed as non-toxic to cats and dogs by the ASPCA.
Set your pot size, light and humidity — the calculator tunes the watering rhythm to your home.
Light at the spot
Humidity
Season
Water Medusa's Head
every 5 days
≈ about weekly · 6× per month
Let the top 2–3 cm dry and finger-check before watering again.
Medusa's Head prefers bright, indirect but will cope with medium to bright. Harsh midday sun can scorch sensitive leaves, while too little light leads to leggy, sparse growth.
Keep Medusa's Head between 15–30 °C and aim for around 60% humidity (40% minimum). Below 7 °C it risks cold damage — keep it away from draughty windows and radiators.
15–30 °C
Not below 7 °C
60%
40% minimum
Let the top dry out
Soil between waterings
Pot Medusa's Head in none — mounted or displayed bare-root. A drainage hole is essential — soggy, airless soil is the single most common way houseplants die.
Listed as non-toxic to cats and dogs by the ASPCA — a genuinely pet-safe choice.
The best ways to propagate Medusa's Head are offsets / pups. Late spring and summer are ideal, when the plant is growing most actively.
Air plants have no functional roots for feeding — they absorb water and nutrients through silvery scales (trichomes) on their leaves, so soak rather than pot them.
In the growing season Medusa's Head needs watering about weekly (about every 5 days in a 16 cm pot at medium light), and much less in winter — roughly every 8 days. Use the watering calculator above to get the exact interval for your conditions.
Medusa's Head thrives in bright, indirect. A spot near a bright window out of harsh midday sun is ideal; give it a little more light in winter.
Medusa's Head is non-toxic to pets. Listed as non-toxic to cats and dogs by the ASPCA — a genuinely pet-safe choice.
The most common problem with Medusa's Head is dehydration. Check your watering and drainage first — most issues trace back to too much or too little water.
The best ways to propagate Medusa's Head are offsets / pups. Late spring and summer are ideal, when the plant is growing most actively.
Indoors Medusa's Head typically reaches 10–25 cm. With the right light and occasional repotting it stays compact and bushy.
Care data last verified on 15 June 2026.
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