Repotting guide

When & how to repot Haworthiopsis Viscosa (Haworthiopsis viscosa)

Also called Three-ranked haworthia, Sticky haworthia.

More about haworthiopsis viscosa

About Haworthiopsis Viscosa

Haworthiopsis viscosa · also called Three-ranked haworthia, Sticky haworthia · houseplant

Haworthiopsis viscosa is a slow-growing South African succulent whose triangular, dark-green leaves stack in three neat vertical rows, forming a column-like tower. It thrives in bright indirect light, gritty fast-draining mix, and infrequent watering. Tough and pet-safe, it suits sunny windowsills and offsets readily, making it an easy, forgiving collector's succulent.

Mature size: Reaches about 15-20 cm (6-8 in) tall and 10-15 cm wide, slowly forming a clustering colony of upright columns.

Watch for — Root and basal rot: The most common killer, caused by overwatering or a pot without drainage. Let the soil dry fully and use a gritty mix in a draining pot.

How to tell haworthiopsis viscosa needs repotting

Repotting on a calendar is less reliable than reading the plant. For haworthiopsis viscosa, watch for these signs:

Roots growing out of the drainage holes, or the rootball lifting the plant proud of the rim.
Soil that has shrunk away from the pot sides and no longer holds water.
The pot is unstable because the plant has grown top-heavy.
Old, compacted, broken-down mix that stays wet too long — for a succulent that is a rot risk, so refresh it even if the pot size is fine.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot haworthiopsis viscosa

Every 2–3 years, into bone-dry mix. Haworthiopsis Viscosa's growth habit — slow-growing, clump-forming succulent with stiff triangular leaves arranged in three distinct vertical ranks, creating an upright columnar tower that offsets at the base to form tight clusters over time. — sets the pace. Haworthiopsis viscosa is a slow-growing South African succulent whose triangular, dark-green leaves stack in three neat vertical rows, forming a column-like tower. It thrives in bright indirect light, gritty fast-draining mix, and infrequent watering. Tough and pet-safe, it suits sunny windowsills and offsets readily, making it an easy, forgiving collector's succulent.

What size pot to step haworthiopsis viscosa up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Haworthiopsis Viscosa stores water and rots in a large pot of slow-drying soil. A tight terracotta pot that dries fast is far safer than a generous plastic one. Never up-pot a succulent by several sizes.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot haworthiopsis viscosa

Spring or summer, while haworthiopsis viscosa is in active growth and warm, is best — roots recover fastest then, and the plant is not sitting in cool damp soil. Avoid repotting a succulent in winter dormancy.

Step-by-step: repotting haworthiopsis viscosa

Repot dry. Do not water haworthiopsis viscosa for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty gritty, fast-draining cactus and succulent mix ready.
Tip it out and clean the roots. Slide the plant out, crumble off the old soil, and trim any black, mushy or dead roots with clean snips.
Pot into dry mix. Set haworthiopsis viscosa at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
Wait a week before watering. Leave it completely dry and out of harsh sun for about 7 days so any damaged roots callus. Only then water lightly.

Aftercare

Keep haworthiopsis viscosa completely dry and out of fierce sun for about a week so any nicked roots callus before they meet moisture; watering a freshly repotted succulent is the classic way to rot it. Then resume the normal lean, dry rhythm. Do not fertilise for about 3 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for haworthiopsis viscosa

Haworthiopsis Viscosa wants gritty, fast-draining cactus and succulent mix. Use a cactus/succulent mix cut with extra pumice, perlite, or coarse grit (about 50% mineral). A terracotta pot with a drainage hole helps the rootball dry quickly between waterings. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting haworthiopsis viscosa — frequently asked questions

How often should you repot haworthiopsis viscosa?

Every 2–3 years, into bone-dry mix for haworthiopsis viscosa. Repot haworthiopsis viscosa every 2–3 years into a snug pot of gritty, fast-draining cactus and succulent mix, ideally in spring or summer. Let it sit in dry soil and do not water for about a week afterwards so any nicked roots can callus. Over-potting and watering straight away is what rots succulents.

What size pot does haworthiopsis viscosa need?

When is the best time of year to repot haworthiopsis viscosa?

Should you water haworthiopsis viscosa after repotting?

No — not straight away. Repot haworthiopsis viscosa into dry mix and wait about a week before the first watering so any damaged roots callus over. Watering a freshly repotted succulent is the single most common way to rot one.

Should you fertilise haworthiopsis viscosa after repotting?

Not immediately. Wait about 3 weeks after repotting haworthiopsis viscosa. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.