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Plant care

Dicliptera suberecta (Uruguayan firecracker plant) care

Dicliptera suberecta

Also called Uruguayan firecracker plant, Hummingbird plant.

RHS H3USDA 8-11Mildly toxic to petsIndoor Roughly 0.5-1 m tall and 0.6-1 m wide

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 rotThe 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 floweringToo 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 diebackTop growth is killed by frost. In borderline zones mulch the crown so it resprouts from the roots in spring.
  • Powdery mildew in damp airCrowded, 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:

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:

Related guides

Dicliptera suberecta is also commonly called Uruguayan firecracker plant or Hummingbird plant.