Agapanthus coddii

Agapanthus coddii (Codd’s African lily) is a striking, deciduous agapanthus that produces large heads of bright blue-violet buds opening to blue flowers in late summer, held high above strong, strap-like green foliage. Because it’s deciduous (it dies back in autumn and re-emerges in spring), it’s often a great choice for UK gardens where you want bold, architectural summer colour with a plant that settles in and comes back reliably each year.

It’s perfect for sunny borders, gravel-style planting, or large patio containers, where those tall flower stems add height and drama. It also makes a superb statement planted in groups, and the flowers are brilliant for pollinators in late summer when many borders are starting to wind down. 

Planting Instructions

When to Plant:

Plant in spring or early autumn, while the soil is moist and workable.

Where to Plant:
Choose a sunny, sheltered position with well-drained soil. Agapanthus prefer good drainage (especially in winter) but enjoy soil that holds a little moisture during summer growth. Ideal for mixed borders, gravel gardens, or large pots and containers.

How to Plant:

• Depth: Plant so the crown sits just at, or slightly below, soil level.
• Spacing: Space plants around 45–60 cm apart to allow room for clumps to mature.
• Soil Prep: Mix in a little garden compost for establishment, and add horticultural grit if your soil is heavy to improve drainage.

Watering:
Water well after planting. Keep the soil evenly moist through the first growing season. Once established, water during prolonged dry spells for best flowering.

Aftercare Tips:

• Deadhead spent flowerheads to keep the plant tidy and encourage strong growth.
• Feed in spring and early summer with a balanced fertiliser to support flowering.
• As a deciduous agapanthus, allow foliage to yellow and die back naturally in autumn, then tidy away.
• Divide congested clumps every 4–5 years (best done after flowering or in spring).

Top Tip:
Agapanthus coddii looks superb planted in groups for maximum impact. Pair with ornamental grasses, Salvias and Verbena for a long season of colour and movement.

Plant Details

Flowering Period:
Late summer

Height:
1–1.5 m

Foliage:
Deciduous (dies back in autumn, returns in spring)

Hardy Perennial