Plant care
Shark-Toothed Neoregelia (Shark Neoregelia) care
Neoregelia carcharodon
Also called Shark Neoregelia, Great White Bromeliad.
Watering rhythm
5-7days
Refill the central cup every 5-7 days; water the medium lightly when the top 3 cm is dry, roughly every 14 days
Light
Bright indirect light (just back from a sunny window)
Soil
Coarse bromeliad bark mix
Humidity
55-75%
Temp
18-28°C
Pet safety
Pet-safe
Mature size
50-80 cm wide
Care at a glance
Light
In the wild shark-toothed neoregelia 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. Needs bright, filtered light to develop good colour and vigour. Morning sun is acceptable. Strong afternoon sun can bleach or burn the large leaf blades. 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 refill the central cup every 5-7 days; water the medium lightly when the top 3 cm is dry, roughly every 14 days for shark-toothed neoregelia, 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. The large water-holding tank must stay filled — use rainwater or filtered water and flush it completely once a week. Keep the potting medium barely moist and never let it become sodden.
Soil and pot
Shark-Toothed Neoregelia grows best in coarse bromeliad bark mix. A very open, fast-draining blend of large bark chips, perlite and a minimal amount of peat-free compost. Good aeration is critical for the coarse roots of this species. 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
Shark-Toothed Neoregelia sits happiest at around 55-75% humidity and 18-28°C (64-82°F). High humidity replicates its humid Brazilian forest habitat. A pebble tray, regular light misting or a room humidifier will keep leaf margins from browning. If you keep the room above 18 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 shark-toothed neoregelia sparingly. Feed monthly in spring and summer with a quarter- to half-strength balanced liquid fertiliser added to both the cup and the medium. Avoid overfeeding — bromeliads are light feeders. 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 shark-toothed neoregelia in the Growli community. Each is annotated with the most common cause so you know where to start.
- Brown serrated tips — Sharply toothed margins can brown if humidity is very low or water is high in fluoride. Use rainwater and maintain humidity above 50%.
- Cup rot — Stagnant water in the large central tank rots the base. Empty and refill weekly, especially in warm weather.
- Scale insects — Hard, limpet-like scales attach along the leaf midrib. Remove mechanically and treat with horticultural oil.
- Pale, washed-out colouring — Insufficient light prevents the characteristic reddish centre flush. Move to a brighter spot away from direct harsh sun.
- Root decay in heavy mix — This large bromeliad has relatively few roots; heavy compost suffocates them. Always use a very open, bark-dominant medium.
Companion plants
Shark-Toothed Neoregelia pairs well with Neoregelia fosteriana, Aechmea fasciata, Billbergia nutans, and Anthurium clarinervium. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.
Propagation
After the central rosette blooms and begins to die, pups emerge from the base. Detach when they are approximately one-third the size of the parent and pot individually in fresh bromeliad mix. 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
Shark-Toothed Neoregelia is pet-safe. Not individually listed by the ASPCA, but Neoregelia belongs to the Bromeliaceae family, members of which the ASPCA broadly considers non-toxic to cats and dogs. The serrated leaf margins present a physical scratch hazard to curious pets. 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.
Shark-Toothed Neoregelia care — frequently asked questions
What is the common name for Neoregelia carcharodon?
Neoregelia carcharodon is most commonly called Shark-Toothed Neoregelia, but it is also known as Shark Neoregelia, Great White Bromeliad. The names refer to the same species, so care instructions for Shark-Toothed Neoregelia apply identically to anything sold as Shark Neoregelia.
How much light does shark-toothed neoregelia need?
Shark-Toothed Neoregelia grows best in bright indirect light (just back from a sunny window). Needs bright, filtered light to develop good colour and vigour. Morning sun is acceptable. Strong afternoon sun can bleach or burn the large leaf blades.
How often should I water shark-toothed neoregelia?
Water shark-toothed neoregelia refill the central cup every 5-7 days; water the medium lightly when the top 3 cm is dry, roughly every 14 days. The large water-holding tank must stay filled — use rainwater or filtered water and flush it completely once a week. Keep the potting medium barely moist and never let it become sodden. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.
Is shark-toothed neoregelia toxic to cats and dogs?
Shark-Toothed Neoregelia is pet-safe. Not individually listed by the ASPCA, but Neoregelia belongs to the Bromeliaceae family, members of which the ASPCA broadly considers non-toxic to cats and dogs. The serrated leaf margins present a physical scratch hazard to curious pets.
What USDA hardiness zone does shark-toothed neoregelia grow in?
Shark-Toothed Neoregelia is rated for USDA zone 11-12 (indoor-only in most climates) and RHS hardiness H1c. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Shark-Toothed Neoregelia deep-dive guides
Every aspect of shark-toothed neoregelia care, each with its own calibrated guide:
- Common shark-toothed neoregelia problems & fixes
- Shark-Toothed Neoregelia watering schedule
- Shark-Toothed Neoregelia light requirements
- Best soil mix for shark-toothed neoregelia
- Shark-Toothed Neoregelia fertilizing guide
- When to repot shark-toothed neoregelia
- How to propagate shark-toothed neoregelia
- How to prune shark-toothed neoregelia
- What's eating my shark-toothed neoregelia?
- Shark-Toothed Neoregelia growth rate & size
- Shark-Toothed Neoregelia cold hardiness
- Shark-Toothed Neoregelia temperature & humidity
- Is shark-toothed neoregelia toxic to cats & dogs?
- Is shark-toothed neoregelia toxic to cats?
- Is shark-toothed neoregelia toxic to dogs?
- All 20 Neoregelia varieties
Featured in these plant shortlists
Shark-Toothed Neoregelia qualifies for 6 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 humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
- 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 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 30 plant shortlists — pet-safe, low-light, drought-tolerant and more
Related guides
Shark-Toothed Neoregelia is also commonly called Shark Neoregelia or Great White Bromeliad.