Alocasia 'Stingray'

Alocasia 'Stingray'

Alocasia macrorrhizos 'Stingray' is a cultivated Alocasia macrorrhizos with rounded, slightly cupped leaves and a long, narrow terminal tip. The blade sits on a tall petiole and extends into a tail-like point, giving each leaf its stingray outline.

This is a vigorous Alocasia with a thick rhizomatous base, upright petioles and broad spread as it matures. In a bright, warm indoor position, it can develop into a large container plant with an open base and leaves held clearly above the pot.

Tail-tipped macrorrhizos leaves

• Botanical base: Cultivar of Alocasia macrorrhizos with an unusual blade form.
• Leaves: Rounded, cupped blades with wavy margins and a long narrow terminal tip.
• Growth habit: Upright, large Alocasia with thick petioles and a strong central growth point.
• Origin story: Associated with Sarawak material and later wider propagation in Southeast Asian cultivation.
• Container behaviour: Needs room for large petioles, active roots and a gradually thickening base.

Cultivar origin and mature scale

Alocasia 'Stingray' is a cultivar of Alocasia macrorrhizos with a leaf mutation that changes the blade into a rounded form with a long tail-like tip. It is associated with material found in Sarawak, Malaysian Borneo, and later propagation in Thailand.

The blade is rounded and slightly cupped, with an undulating edge and a very long terminal drip tip. In containers it behaves like a large macrorrhizos-background Alocasia: fast when warm, hungry while new leaves are forming and dependent on a stable root system to carry its oversized leaf stems.

Root space for Stingray growth

• Light: Keep the plant in soft bright light with enough intensity for tall petioles and large leaf expansion.
• Watering: During warm active leaf production, keep the mix evenly moist; in lower light, widen the intervals so the large rhizome stays warm and aerated.
• Substrate: Use a chunky, fertile mix with bark, composted fibre, pumice or perlite and good moisture retention.
• Drainage: Give the roots an open path for water and air, as heavy soil can sit wet around the rhizome.
• Temperature: Maintain 18–30 °C in the active season. Warm conditions help leaves size up.
• Humidity: New leaves open most cleanly in moderate-to-high humidity during warm indoor growth.
• Feeding: Feed regularly in spring and summer; established plants respond well once roots fill the pot.
• Pot choice: Use a broad, stable container to balance the height and weight of the petioles.
• Repotting: Repot when the root ball becomes dense or watering runs straight through the old mix.
• Outdoor summer placement: A sheltered, bright outdoor position can help growth after gradual acclimation.
• Propagation: Divide established offsets or corms through the main growth season and keep divisions warm while rooting.

Seasonal changes in the petioles

• Long, leaning petioles: Improve light exposure step by step and turn the plant so the base develops evenly.
• Yellow lower leaves: Check watering intervals, root space and temperature; older leaves cycle out as the plant sizes up.
• Brown leaf edges: Look for dry substrate pockets, salt build-up or hot window exposure.
• Soft rhizome base: Inspect root health, drainage and recent temperature drops immediately.
• Distorted new leaves: Check for pests and protect the emerging leaf from repeated rubbing or handling.

Alocasia macrorrhizos 'Stingray' develops its clearest mature outline with floor-level space around the base. Turn the pot occasionally so the petioles develop evenly and the newest leaves have room to unfurl cleanly.

Removing older leaves cleanly

Treat freshly damaged Alocasia 'Stingray' tissue as irritating. Use a stable pot position, dispose of old leaves carefully and wash your hands after division.

Macrorrhizos background and stingray leaf form

Alocasia macrorrhizos belongs to Araceae and supplies the species base for 'Stingray'. The epithet macrorrhizos points to large roots or rhizomes, while the cultivar name describes the long tail-like leaf tip; 'Sting Ray' appears as a spacing variant in cultivation.