Light
Direct sun
Ideal spot
Dionaea muscipula 'King Henry' · Carnivorous plant · pet-safe
Direct sun
Ideal spot
almost daily
In the growing season
Demanding
Slow grower
Safe
Cats & dogs
King Henry Venus Flytrap (Dionaea muscipula 'King Henry') belongs to the Droseraceae family and is a demanding houseplant to look after. This slow grower plant is happiest in direct sun and reaches 12–18 cm indoors.
For watering, the rule is simple: keep evenly moist. In the growing season it needs water roughly every 2 days, dropping to every 4 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: King Henry Venus Flytrap 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 King Henry Venus Flytrap
every 2 days
≈ almost daily · 15× per month
Let the top 2–3 cm dry and finger-check before watering again.
King Henry Venus Flytrap prefers direct sun but will cope with bright, indirect. Harsh midday sun can scorch sensitive leaves, while too little light leads to leggy, sparse growth.
Keep King Henry Venus Flytrap between 5–30 °C and aim for around 60% humidity (50% minimum). Below 0 °C it risks cold damage — keep it away from draughty windows and radiators.
5–30 °C
Not below 0 °C
60%
50% minimum
Keep evenly moist
Soil between waterings
Pot King Henry Venus Flytrap in nutrient-free sphagnum + perlite, standing in rainwater. 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 King Henry Venus Flytrap are division, leaf pulling and seed. Late spring and summer are ideal, when the plant is growing most actively.
A Venus flytrap needs a cold winter dormancy to survive long-term and only ever drink rainwater — tap-water minerals kill it within months.
In the growing season King Henry Venus Flytrap needs watering almost daily (about every 2 days in a 16 cm pot at medium light), and much less in winter — roughly every 4 days. Use the watering calculator above to get the exact interval for your conditions.
King Henry Venus Flytrap thrives in direct sun. A spot near a bright window out of harsh midday sun is ideal; give it a little more light in winter.
King Henry Venus Flytrap 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 King Henry Venus Flytrap is mineral burn. Check your watering and drainage first — most issues trace back to too much or too little water.
The best ways to propagate King Henry Venus Flytrap are division, leaf pulling and seed. Late spring and summer are ideal, when the plant is growing most actively.
Indoors King Henry Venus Flytrap typically reaches 12–18 cm. With the right light and occasional repotting it stays compact and bushy.
Care data last verified on 15 June 2026.
Browse 600+ houseplants with a watering calculator, light needs and pet-safety at a glance.
Browse all houseplants