How to grow amaryllis
Overview
Amaryllis (Hippeastrum hybridum) is a bulbous perennial grown for its large, trumpet-shaped flowers in winter to spring. It requires a dry dormant period after flowering to build energy for the next season's blooms.
Varieties
- Apple Blossom — Pale pink and white striped flowers, very popular in Australian gardens.
- Red Lion — Deep red blooms, classic for pots and borders, reliable in temperate zones.
- Minerva — Red and white bicolour, vigorous grower with strong stems for cutting.
- Nymph — Double pink flowers, a standout for subtropical and Mediterranean gardens.
Soil Preparation
Amaryllis thrives in well-drained, sandy loam with pH 6.0–7.0. Improve heavy clay with coarse sand or grit. Add compost or well-rotted manure at planting time for slow-release nutrients.
Growing Guide
Plant amaryllis bulbs with the neck (top third) above soil level in free-draining beds or pots. Space bulbs 20–30 cm apart in full sun. Water sparingly until growth appears, then keep soil evenly moist but not waterlogged. In cool zones, grow in pots to move under cover during frost.
Care
Feed amaryllis with a balanced liquid fertiliser (e.g., 10-10-10) every 2–3 weeks during active growth. Remove spent flower stalks immediately after bloom to prevent seed formation; allow foliage to die back naturally to replenish the bulb for next season.
Companion Planting
Plant amaryllis near agapanthus, clivia, or bromeliads for similar care needs. Avoid heavy feeders like tomatoes or leafy greens that compete for nutrients and may encourage bulb rot.
Common Pests & Risks
Mealybugs appear as white cottony masses on leaves and bulbs; treat with horticultural oil or soap spray. Snails and slugs chew new growth; control with iron-based pellets or hand-picking at night. Bulb rot from overwatering is the main disease—ensure excellent drainage.
Harvesting
Cut flower stems at the base when the first bud opens for longest vase life. Remove spent stems promptly to prevent seed formation, but allow foliage to die back naturally to feed the bulb.
Troubleshooting
Yellow leaves: overwatering or poor drainage—reduce water and check soil. Brown leaf tips: dry air or underwatering—increase humidity or water more. No flowers: bulb too small or planted too deep—ensure neck above soil and bulb at least 5 cm diameter. Soft bulb: rot from overwatering or cold—discard and improve drainage. Stunted growth: mealybug infestation—check and treat with oil spray.