How to grow pineapple
Overview
Pineapple (Ananas comosus) is a tropical fruit grown for its sweet, juicy flesh and ornamental spiky foliage. In home gardens it thrives in warm, frost-free climates with free-draining soil and full sun, rewarding patience with a single seasonal harvest per plant.
Varieties
- Smooth Cayenne — The most common commercial variety in Australia; produces large, sweet fruit with smooth leaves.
- Queen — A smaller, golden-fleshed variety with excellent flavour and good disease resistance, popular in home gardens.
- Pink Pineapple — A novelty variety with pink flesh and a sweeter, less acidic taste; grows well in warm subtropical zones.
Soil Preparation
Pineapple prefers free-draining, sandy loam with a pH of 4.5–6.5. Before planting, amend with compost or aged manure to improve fertility, and add gypsum if soil is heavy clay. Avoid water-retentive soils—build a raised mound or bed to ensure drainage.
Growing Guide
Plant pineapple in full sun with well-drained, sandy loam soil at a pH of 4.5–6.5. Space crowns or slips 60–90 cm apart in rows, with 1 m between rows. Water sparingly—allow soil to dry between waterings—and avoid wetting the crown to prevent rot. In cooler subtropical areas, plant in raised beds or against a north-facing wall to capture warmth. Mulch with straw to suppress weeds and retain moisture.
Care
Feed pineapple every 3 months with a balanced slow-release fertiliser (e.g., 10-10-10) during the growing season, plus a light side-dress of potassium in spring. Remove suckers and slips promptly to direct energy to the main fruit; after harvest, cut back old leaves to the base to keep the plant tidy and reduce disease.
Companion Planting
Pineapple grows well with sweet potato, comfrey, and lemongrass as living mulch. Avoid planting near brassicas or potatoes, which compete for nutrients and may attract similar pests. Keep away from heavy feeders like corn that shade the low-growing pineapple.
Common Pests & Risks
Mealybugs cause stunted growth and sooty mould; control with horticultural oil or introduce predatory ladybirds. Root rot from Phytophthora occurs in waterlogged soil—ensure excellent drainage and avoid overwatering. Pineapple wilt virus is spread by mealybugs; manage by controlling the vector.
Harvesting
Harvest pineapple 18–24 months after planting when the fruit develops a golden-orange colour and a sweet, fragrant smell at the base. The fruit should give slightly under gentle pressure. Cut the fruit with a sharp knife, leaving a short stem attached. Store at room temperature for up to 5 days; refrigerate only after cutting.
In the Kitchen
Pineapple is best eaten fresh, cut into chunks or rings. It can be grilled, juiced, or used in desserts and savoury dishes like stir-fries. Store whole fruit at room temperature; once cut, refrigerate in an airtight container for up to 3 days.
Troubleshooting
Yellow leaves: overwatering or poor drainage—reduce watering and improve soil. Brown leaf tips: low humidity or salt burn—flush soil with water and increase air circulation. Fruit fails to develop: insufficient sun or potassium—move to full sun and feed with high-potassium fertiliser. Crown rot: planting too deep or wet soil—plant crown above soil line and keep dry. Slow growth: cold weather or poor soil—wait for warmth and add compost.