Shrimp Plant (Shrimp Bush) care

Light

In the wild shrimp plant grows on the bright edge of a forest canopy, not in the canopy and not in the open. Indoors, that translates to within a metre of an unobstructed window, sheer curtain optional. Provide bright, indirect light for the longest bloom period; direct midday sun in summer will bleach the ornamental bracts, while deep shade stops flowering. The fastest test: a hand held at the leaf casts a soft-edged shadow at noon — sharp shadow means too much sun, no shadow means too little light.

Watering

Aim for when the top 2–3 cm (1 in) of compost dries out for shrimp plant, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Water thoroughly then allow the top layer to dry between waterings; overwatering causes yellowing leaves and root rot, while prolonged drought triggers leaf drop.

Soil and pot

Shrimp Plant grows best in well-drained loam-based or peat-free multi-purpose compost. A loam-based mix (e.g. John Innes No. 2) with added perlite improves drainage and suits both pot and border cultivation. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Shrimp Plant sits happiest at around 40–60% humidity and 10–27 °C (50–80 °F). Tolerates average household humidity but benefits from occasional misting or a pebble tray in centrally heated rooms where air is very dry. If you keep the room above 10–27 °C year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed shrimp plant sparingly. Apply a balanced liquid fertiliser at half strength every two to three weeks during spring and summer; withhold feed in winter. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on shrimp plant in the Growli community. Each is annotated with the most common cause so you know where to start.

• Whitefly and spider mite infestation — Glasshouse whitefly and red spider mite are the most common pests, especially under glass or indoors in warm, dry conditions; treat with insecticidal soap or introduce biological controls, and raise humidity to deter mites.
• Leggy, non-blooming stems — Insufficient light causes long, weak stems with few bracts; pinch out shoot tips regularly and move the plant to a brighter position to restore a compact, free-flowering habit.

Propagation

Take 7–10 cm (3–4 in) softwood tip cuttings in spring or early summer, root in a moist perlite and compost mix at 20–22 °C (68–72 °F) with bottom heat if available; new plants bloom within a few months. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Shrimp Plant is pet-safe. The ASPCA does not list Justicia brandegeeana on its toxic plant database, and multiple veterinary plant-safety resources confirm it is non-toxic to cats and dogs; ingestion of large quantities may cause mild, self-limiting gastrointestinal upset due to plant fibre. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Shrimp Plant deep-dive guides

Every aspect of shrimp plant care, each with its own calibrated guide:

• Common shrimp plant problems & fixes
• Shrimp Plant watering schedule
• Shrimp Plant light requirements
• Best soil mix for shrimp plant
• Shrimp Plant fertilizing guide
• When to repot shrimp plant
• How to propagate shrimp plant
• How to prune shrimp plant
• What's eating my shrimp plant?
• Shrimp Plant growth rate & size
• Shrimp Plant cold hardiness
• Shrimp Plant temperature & humidity
• Is shrimp plant toxic to cats & dogs?
• Is shrimp plant toxic to cats?
• Is shrimp plant toxic to dogs?
• All 7 Justicia varieties

Featured in these plant shortlists

Shrimp Plant qualifies for 9 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best pet-safe houseplants — Houseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best pet-safe low-maintenance plants — Non-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
• Best pet-safe plants for bright light — Non-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
• Best pet-safe large indoor plants — Big, floor-standing houseplants the ASPCA lists as non-toxic to cats and dogs — a statement plant that is safe around pets.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Best cat-safe plants — Houseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
• Best dog-safe plants — Houseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Shrimp Plant is also known as Shrimp Plant, Mexican Shrimp Plant, Shrimp Bush, and False Hop.

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