Ananas comosus 'Corona'

Chester Skotak’s compact ‘Duranas2’ pineapple

Ananas comosus ‘Duranas2’, sold under the trade name Corona, came from a planned cross between two unnamed proprietary A. comosus seedlings. Chester Skotak Jr selected it in Alajuela, Costa Rica, in 2005, and it was first propagated by tissue culture in 2006. The patent describes a compact rosette with shorter leaves and smaller fruit than its unnamed parents.

Pineapple ancestry lies in tropical South America, especially the Paraná-Paraguay region of southern Brazil and Paraguay, although people spread the crop widely before European contact. The species’ firm waxy rosette channels moisture towards a shallow root system, while the miniature proportions of ‘Duranas2’ come from breeding.

How to care for Ananas comosus ‘Corona’

Light

Place Ananas comosus ‘Corona’ directly beside a bright south-, west- or east-facing window and acclimate it to several hours of direct sun. Strong light keeps the basal rosette compact and supports any developing fruit and offsets. Low light produces long floppy leaves and weak, pale central growth; sudden midday heat can bleach exposed leaf surfaces. Rotate gradually between growth flushes so the rosette remains balanced without twisting a soft new centre.

Watering

Water Ananas comosus ‘Corona’ when the upper third of the pot has dried, then soak its shallow root zone and let the container drain completely. The firm leaves tolerate a short dry interval, but prolonged drought slows the crown and dries leaf tips. Consistently wet substrate removes oxygen from the small roots. Avoid leaving stale water in the central rosette indoors. Sun, warmth, a developing fruit and many offsets speed drying; cool low light and a deep pot slow it.

Substrate and roots

Use a loose, fast-draining bromeliad mix for Ananas comosus ‘Corona’, combining quality potting substrate or coir with fine bark and pumice or perlite. The root system is relatively shallow and needs air, not a deep mass of wet peat. A little moisture retention is useful, but heavy soil and a cover pot that traps runoff are unsuitable. Keep the short stem and lowest leaves above the surface, choose a broad drainage pot and rinse salts from the root zone periodically.

Temperature

Keep Ananas comosus ‘Corona’ at about 20–30 °C for steady growth, with 16 °C as a cautious indoor minimum. Cool wet roots stop quickly and may damage the centre. Keep the rosette away from cold panes, winter draughts and air-conditioning. Direct radiator air browns the long leaf tips while the pot may still be damp. Stable warmth is particularly important when a fruit or new basal shoot is developing.

Humidity and airflow

Average household humidity is sufficient for Ananas comosus ‘Corona’. Around 45–65% can reduce dry tips in heated rooms, but very high humidity is unnecessary. Gentle airflow through the rosette helps any cleaning water evaporate and keeps the substrate surface fresh. Misting is not required and can leave mineral residue or persistent water in the crown. Correct root watering and distance from heaters matter more than briefly wet leaves.

Fertilising

Apply a complete bromeliad or foliage fertiliser to Ananas comosus ‘Corona’ at quarter strength every four to six weeks while the centre, fruit or offsets are growing. A well-lit warm plant may remain active in winter and can continue receiving a small dose. Reduce the dose when the centre pauses and the pot dries slowly. Strong feeding leaves salts around the shallow roots and can produce weak foliage. Feed moist mix and use plain water for regular thorough runoff.

Repotting

Repot Ananas comosus ‘Corona’ when roots and offsets fill the pot, the fruiting rosette becomes unstable, drainage slows or the old mix collapses. Increase the diameter by 2–4 cm and favour a broad heavy container over extra depth. Its limited roots tolerate careful handling, but keep the central root ball together. Work in stable warmth, maintain the stem depth and separate an offset only after it has developed its own roots and useful size.

Support, pruning, handling and leaf care

A stable pot normally supports Ananas comosus ‘Corona’; a fruiting stem may need one loose stake if its weight pulls the rosette sideways. The original rosette gradually declines after fruiting, so retain healthy basal offsets to replace it rather than forcing the old centre. Cut only fully brown leaves at the base. Move the plant by its pot, keep sharp leaf margins clear of traffic and rinse firm leaves gently without leaving water trapped in the centre.

After the ornamental pineapple fruits

• The fruiting mother rosette slowly declines and pups appear: A pineapple rosette fruits once, then naturally gives way to offsets. Keep healthy pups growing while removing only fully dead mother leaves; separate a pup later when it has enough size and roots to establish.
• The small fruit stops enlarging or begins to age: ‘Corona’ is grown as a compact ornamental pineapple, not for a full grocery-sized crop. Fruit size is not reliably increased indoors, and the stalk should be removed only when the fruit and stem have clearly finished.
• The central leaves pull out and smell sour: This indicates crown rot, often after water has remained in a cool, poorly ventilated rosette. Remove soft tissue, keep the centre dry and inspect the root zone before watering again.
• Leaf tips and margins turn brown: A dry spell, salt build-up or physical rubbing can mark the stiff blades. Flush the mix, keep watering more even and trim only the dead tip without cutting into live green tissue.
• White cottony patches or sticky brown shells appear low in the rosette: Mealybugs and scale can hide between the armed leaves. Isolate the plant and inspect all pups as well as the mother; use our mealybug guide for cottony infestations.

Safety Information

Ananas comosus ‘Corona’ is not considered a major poisoning risk, but sap and chewed plant tissue can irritate the skin or mouth because they contain bromelain and calcium oxalate crystals. The stiff, finely toothed leaves can also scratch. Keep it away from pets that chew plants, wear gloves when handling damaged leaves and rinse exposed skin or eyes with water.

Indigenous roots and a crown called ‘Corona’

Ananas comes from an Indigenous South American name for pineapple, recorded in Tupi-Guaraní languages and carried into European botanical vocabulary. The Latin epithet comosus means tufted or leafy, describing the crown above the fruit.

Chester Skotak Jr bred the cultivar registered as ‘Duranas2’. It is sold as Corona, a name meaning crown and echoing the leafy tuft carried above the fruit.