How often should I water a haworthia?

In a well-drained mix, about weekly in summer and less in winter, and always after the mix has dried. University of Wisconsin–Madison Extension gives that range and warns that prolonged wet soil leads to root rot.

What is the difference between a haworthia and a small aloe?

They look alike from a distance, but they are different plants with different ASPCA listings. If yours is an aloe, read the aloe vera guide instead.

Haworthia Care: Watering, Light + Pet Safety

Haworthia is a small, slow rosette of thick, pointed leaves that looks like a miniature aloe and asks for even less. It wants a bright window, a fast-draining mix and a dry spell between waterings. The ASPCA lists it as non-toxic to cats and dogs.

How often to water a haworthia

Water a haworthia and then let the potting mix dry before you water again. University of Wisconsin–Madison Extension says that in a well-drained mix a haworthia can be watered weekly in the summer, and less often in winter. The roots dislike staying wet, and prolonged wet soil can lead to root rot.

Drainage matters as much as the schedule. Use a pot with a drainage hole and a mix that drains quickly: the same source suggests blending commercial potting mix with equal parts perlite, aquarium gravel, poultry grit or pumice, and advises against sand. When you repot, which it puts at every two to three years, choose a pot about the same volume as the root system.

Light and humidity

The extension guidance is an east or west window with a few hours of direct light each day. A south window can also work if the sun is filtered, and haworthias grow well under plant lights.

Too little light shows up as leaves that stretch out and lose color. If your plant is getting longer and paler instead of staying a tight rosette, it wants a brighter spot.

Humidity: No figure in the extension source; average household air is what it is grown in.

Why is my haworthia dying?

Root rot is the serious one. It follows poor drainage or too much water, and the signs the extension source lists are growth that stops and leaves that shrivel. A shriveled haworthia in wet soil needs less water, not more, so check the roots before you reach for the can.

Mealybugs, which look like small cottony masses in the joints of leaves and stems, can be picked off by hand or treated with rubbing alcohol on a cotton swab. Stretched, pale growth means the light is too low.

Temperature is forgiving. The Wisconsin source gives an optimum of 75 to 90°F and says a haworthia can tolerate temperatures into the low 40s °F as long as the soil is not continuously wet.

How to propagate a haworthia

Most haworthias grow in a cluster, producing small new plants, called offsets, from the base. These offsets are the easy way to make more.

The Wisconsin source also describes leaf propagation: cut a mature leaf with a little stem tissue and let the wound dry before you pot it. Seed is possible but slow, so offsets are the practical method.

Is a haworthia safe for pets and children?

cats: Non-toxic. Source: ASPCA, Haworthia (Haworthia species).
dogs: Non-toxic. Source: ASPCA, Haworthia (Haworthia species).
People, including children: Not covered by our source. The ASPCA assesses animals only, so this page makes no claim about people. If a child eats part of any houseplant, call Poison Help at 1-800-222-1222 (US).

Non-toxic to cats and dogs per the ASPCA. It looks a lot like a small aloe, and aloe IS toxic to both, so make sure you know which one you have.

The haworthia pet-safety page, with the ASPCA listing

Keeping it alive when you share a home

In a shared home, a haworthia suits a household where watering is one person’s weekly job, since several people each adding a splash is how a succulent ends up in wet soil.

The ASPCA lists it as non-toxic to cats and dogs. It looks like a small aloe vera, though, and the ASPCA lists aloe as toxic to cats and dogs, so check which plant you actually own before you tell a housemate it is fine to leave on the floor.

If you use Family Greenhouse for this, sharing plants with a household explains who sees what and who gets reminded.

The honest bit

My take: a haworthia is a good first succulent for a bright desk or sill, and a bad one for anyone who waters on a schedule without looking at the soil.

The ASPCA lists haworthia (Haworthia species) as non-toxic to cats and dogs. That listing covers haworthia, not the aloe it resembles. Non-toxic is not the same as safe to eat in quantity, so if a pet eats a lot and seems unwell, call your vet. The pet-safety page for haworthia shows the listing, and the free pet-safe checker covers your other plants.

Haworthia FAQ

How often should I water a haworthia?: In a well-drained mix, about weekly in summer and less in winter, and always after the mix has dried. University of Wisconsin–Madison Extension gives that range and warns that prolonged wet soil leads to root rot.
Why is my haworthia stretching or losing color?: Usually too little light. Move it to an east or west window with a few hours of direct light a day, or put it under a plant light.
What is the difference between a haworthia and a small aloe?: They look alike from a distance, but they are different plants with different ASPCA listings. If yours is an aloe, read the aloe vera guide instead.
Is a haworthia toxic to cats and dogs?: No. The ASPCA lists Haworthia (Haworthia species) as non-toxic to cats and dogs. Non-toxic to cats and dogs per the ASPCA. It looks a lot like a small aloe, and aloe IS toxic to both, so make sure you know which one you have.

Haworthia care