Agapanthus – Lily of the Nile – Desert Horizon Nursery

Agapanthus – Lily of the Nile

Agapanthus praecox

Water
Water deeply and regularly during active growth, allowing the top 1–2 inches of soil to dry between waterings. Increase attention during extreme summer heat; reduce watering in winter. Not suitable for unirrigated desert landscapes.
Description
An evergreen, clump-forming perennial with arching, strap-shaped leaves and rounded clusters of blue flowers on upright stalks; requires protection from Phoenix’s intense summer sun.
Deciduous / Evergreen
Special Features
Growth Rate
Growth Habit
Foliage Color
Garden Style
Toxic to pets & humans if ingested; sap is a skin/eye irritant.
Care Instructions

Light: Morning sun with afternoon shade or bright filtered light. Avoid exposed western sites and reflected heat; deep shade reduces flowering.

Water: Water deeply and regularly during active growth, allowing the top 1–2 inches of soil to dry between waterings. Increase attention during extreme summer heat; reduce watering in winter. Not suitable for unirrigated desert landscapes.

Soil: Well-drained soil enriched with compost; slightly acidic to neutral soil is preferred. Avoid waterlogged clay and monitor for nutrient deficiencies in Phoenix’s alkaline soils.

Mature size: Foliage reaches about 1–2 feet tall and 2–3 feet wide; flower stalks reach approximately 2–3 feet tall.

Bloom: Typically late spring through summer, depending on cultivar and growing conditions.

Evergreen / deciduous: Evergreen in mild winters; foliage can be damaged by freezing temperatures.

Growth rate: Moderate; slower under extreme heat or moisture stress.