Agapanthus

Agapanthus praecox

flower

Agapanthus (Agapanthus praecox), commonly called lily of the Nile, is a clump-forming perennial with arching, strap-shaped, mostly evergreen leaves, from which tall stalks rise in summer bearing large, rounded clusters of blue or white trumpet flowers. The flower stems can reach 5 ft. It is a signature plant of warm-climate and coastal gardens, prized for its bold form and long bloom, and where winters are cold it makes an outstanding large container plant that is simply moved indoors for the winter.

✅ Plant alongside

Good neighbors that attract beneficial insects or deter pests

• Salvia — Upright flower spikes that share the sun and complement the rounded agapanthus heads
• Lavender — Loves the same warm, well-drained conditions and draws pollinators
• Daylily — A tough, sun-loving perennial with strappy foliage that pairs in habit

🛡️ Pest & disease prevention

Proactive ways to stop trouble before it starts — tap a name with an arrow for its full guide

• Aphids →

  Cluster on flower stalks; rinse off and conserve natural enemies

• Snails →

  Chew leaves and buds; hand-pick in the evening and clear hiding spots

• Root rot →

  From wet, poorly drained soil, especially in winter; plant in well-drained ground and ease off water in the cold months

🌸 Blooms & cutting

Agapanthus makes a long-lasting cut flower, so cut the stalks when about half the florets in the cluster have opened. Otherwise remove spent flower stems after bloom for tidiness. In cold climates, the main seasonal task is moving container plants to a cool, bright, frost-free place for winter and resuming water in spring.

🥗 Nutrition & benefits

Agapanthus is an ornamental, not edible, and is mildly poisonous. Its value is bold, long-lasting summer flower heads on a handsome evergreen clump, excellent in warm-climate beds and as a winter-indoors container plant, with nectar for pollinators. Have a different variety? Cultivars of the same species share the same basic care, so this guide still applies even if your exact color is not shown.

⚠️ Toxicity & safety

Agapanthus sap can irritate the skin, and the plant is poisonous if eaten, causing irritation and ulceration of the mouth. It is considered a problem if chewed by pets. Wear gloves when dividing it and keep it away from children and pets that nibble plants.