Plant care
Dicliptera suberecta (Uruguayan firecracker plant) care
Dicliptera suberecta
Also called Uruguayan firecracker plant, Hummingbird plant.
Watering rhythm
7-10days
When the top 3-4 cm of soil is dry, roughly every 7-10 days once established
Light
Direct sun (at least 4-6 hours)
Soil
Light, free-draining, sandy or gritty soil
Humidity
30-50%
Temp
15-30°C
Pet safety
Mildly toxic to pets
Mature size
Roughly 0.5-1 m tall and 0.6-1 m wide
Care at a glance
Light
Aim for at least 4-6 hours of direct sun on the leaves. Full sun is best, producing the densest silver foliage and heaviest flowering. It tolerates light shade but becomes lax and blooms less; good drainage matters more than shade in sun. If your only bright window faces south, that's perfect for dicliptera suberecta — same window any aroid would fry on.
Watering
Watering dicliptera suberecta: when the top 3-4 cm of soil is dry, roughly every 7-10 days once established. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Drought-tolerant once rooted in; water moderately to establish, then let it dry well between drinks. It strongly dislikes wet, heavy soil, especially in winter, which causes crown rot.
Soil and pot
Dicliptera suberecta grows best in light, free-draining, sandy or gritty soil. Needs sharp drainage above all. Lean, gritty, sandy loam suits it; avoid rich, water-retentive ground. In pots use a free-draining mix with added grit or perlite. 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
Dicliptera suberecta sits happiest at around 30-50% humidity and 15-30°C (59-86°F). Adapted to drier conditions and happy in low to moderate humidity. High humidity with poor airflow can encourage rot on its woolly leaves, so favour open, breezy positions. If you keep the room above 15 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 dicliptera suberecta sparingly. A light feeder. Apply a balanced fertiliser once or twice in spring and early summer; avoid over-feeding, which produces soft, floppy growth at the expense of flowers and silvery colour. 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 dicliptera suberecta in the Growli community. Each is annotated with the most common cause so you know where to start.
- Crown and root rot — The biggest risk; caused by wet, heavy soil, especially over winter. Plant in sharply drained ground or raised beds and keep dry in the cold season.
- Floppy, sparse flowering — Too much shade, water, or feed makes it lax with few blooms. Give full sun, lean soil, and minimal fertiliser for compact, free-flowering growth.
- Frost dieback — Top growth is killed by frost. In borderline zones mulch the crown so it resprouts from the roots in spring.
- Powdery mildew in damp air — Crowded, humid, still conditions can mildew the woolly foliage. Space plants, improve airflow, and avoid wetting leaves when watering.
Propagation
Easily propagated by softwood stem cuttings in spring or summer, which root readily, or by dividing established clumps in spring. Both methods reproduce the silver foliage and orange flowers reliably. 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
Dicliptera suberecta is mildly toxic to pets. Dicliptera suberecta is not individually listed on the ASPCA's toxic or non-toxic plant database, and the genus Dicliptera is unlisted. Without authoritative ASPCA non-toxic confirmation, treat it as uncertain and potentially mildly toxic; keep it away from pets and consult a vet if any is eaten. 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.
Dicliptera suberecta care — frequently asked questions
What is the common name for Dicliptera suberecta?
Dicliptera suberecta is most commonly called Dicliptera suberecta, but it is also known as Uruguayan firecracker plant, Hummingbird plant. The names refer to the same species, so care instructions for Dicliptera suberecta apply identically to anything sold as Uruguayan firecracker plant.
How much light does dicliptera suberecta need?
Dicliptera suberecta grows best in direct sun (at least 4-6 hours). Full sun is best, producing the densest silver foliage and heaviest flowering. It tolerates light shade but becomes lax and blooms less; good drainage matters more than shade in sun.
How often should I water dicliptera suberecta?
Water dicliptera suberecta when the top 3-4 cm of soil is dry, roughly every 7-10 days once established. Drought-tolerant once rooted in; water moderately to establish, then let it dry well between drinks. It strongly dislikes wet, heavy soil, especially in winter, which causes crown rot. 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 dicliptera suberecta toxic to cats and dogs?
Dicliptera suberecta is mildly toxic to pets. Dicliptera suberecta is not individually listed on the ASPCA's toxic or non-toxic plant database, and the genus Dicliptera is unlisted. Without authoritative ASPCA non-toxic confirmation, treat it as uncertain and potentially mildly toxic; keep it away from pets and consult a vet if any is eaten.
What USDA hardiness zone does dicliptera suberecta grow in?
Dicliptera suberecta is rated for USDA zone 8-11 (root-hardy to about zone 8 with sharp drainage and mulch) and RHS hardiness H3. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Dicliptera suberecta deep-dive guides
Every aspect of dicliptera suberecta care, each with its own calibrated guide:
- Dicliptera suberecta watering schedule
- Dicliptera suberecta light requirements
- Best soil mix for dicliptera suberecta
- Dicliptera suberecta fertilizing guide
- When to repot dicliptera suberecta
- How to propagate dicliptera suberecta
- Dicliptera suberecta growth rate & size
- Dicliptera suberecta cold hardiness
- Dicliptera suberecta temperature & humidity
- Is dicliptera suberecta toxic to cats & dogs?
- Is dicliptera suberecta toxic to cats?
- Is dicliptera suberecta toxic to dogs?
Featured in these plant shortlists
Dicliptera suberecta qualifies for 2 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:
- Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
- Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
- Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more
Related guides
Dicliptera suberecta is also commonly called Uruguayan firecracker plant or Hummingbird plant.