Xeronema callistemon (Poor Knights Lily)

Growing Xeronema callistemon Successfully in NZ

Xeronema callistemon grows best in full sun and free-draining soil, ideally with some protection from heavy frosts. In New Zealand, it thrives in coastal and northern regions, especially when planted in raised beds, rocky outcrops, or containers. Avoid overly wet conditions, particularly in winter, as the roots dislike soggy soil. This plant is slow to establish but rewards patience with its striking red flowers. For best results, limit disturbance to the roots and avoid transplanting once settled.

Xeronema callistemon Care Tips

To care for Xeronema callistemon, choose a sunny, sheltered position with excellent drainage. Use a free-draining mix if growing in pots. Water regularly during dry spells but allow the soil to dry slightly between watering. Avoid overwatering, especially in cooler months. Feeding with a low-phosphorus fertiliser in spring can encourage healthy growth. Remove spent flower heads to maintain tidiness. Once established, this plant is hardy and requires minimal maintenance, but it dislikes root disturbance, so plant with care.

Plant Size and Spacing

Xeronema callistemon typically grows to about 1 metre tall and 1 to 1.5 metres wide. It forms a clump of upright, sword-like leaves. When planting in gardens or landscape settings, space plants approximately 1 to 1.2 metres apart to allow for mature spread and airflow. In pots, allow for at least a 40–50 cm diameter container to accommodate root development and long-term growth.

Why Buy Xeronema callistemon from The Plant Company

The Plant Company offers premium-quality Xeronema callistemon plants grown under expert care to ensure strong root systems and healthy foliage. We source only top-grade plants to give you the best chance of success in your garden. Our team provides expert advice on growing conditions and ongoing care, and we offer fast, reliable delivery throughout New Zealand. Whether you're creating a unique feature or adding native beauty, The Plant Company is your trusted choice for Poor Knights Lily.