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Agapanthus Navy Blue
(African Lily)



Out of stock

August - September
80cm x 40cm
Cut Flowers
Half Hardy

Agapanthus Navy Blue is an absolute classic, a shining example of everything great about Agapanthus. It’s easy to see why it’s so popular, with it’s striking colour keeping the garden looking spectacular throughout the summer.

Additional information

Plant Type
Flowering Period
Flower Colour
Fully Grown Size
Garden Position
Light Level
RHS Garden Merit Award
RHS Plants For Pollinators


Agapanthus Navy Blue is the benchmark for a great Agapanthus, tall and colourful with many possible uses in any garden, from pots to beds and borders. It grows as a mound of foliage, growing long deciduous leaves with a spread of around 40cm and grows long stems protruding from below with large flower heads of deep blue flowers, up to around 80cm. These flowers will bloom and keep the garden looking great throughout late Summer to early Autumn, and will survive through Winter to flower again in the next summer - It's no wonder this variety is a recipient of the prestigious RHS Award of Garden Merit! When planted in a pot, Agapanthus will flower more due to their roots being constricted, so if you're looking for that flower power late in the season then this plant has you covered. They also are generally pest and disease free, and this contributes to how low maintenance they are, meaning they can continue to look great as they flower without the need for constant watering or excessive use of bait for pests.

Planting Conditions

Agapanthus should be planted in a spot with 6 to 8 hours of sunlight a day, in moist but well drained soil. They aren't fussy about the pH of the soil, but it's very important that the soil drains well as Agapanthus don't like much water. They also grow particularly well in pots as, when their roots are constricted by a container, they tend to produce more flowers for greater displays of colour throughout their flowering season.

Watering & Feeding

Agapanthus love being a little more on the dry side than most perennials, meaning they won't need watering as often as other plants in the garden. Because of this, they should also be planted in soil that drains well - and this watering can be performed once or twice a week. If you're wondering when they should be watered in their flowering season, check the top inch of soil, as if it's dry then they could do with a water. They should be fertilised with a fertiliser of a 1-2-1 ratio, mainly in Spring and Summer.

General Care

Agapanthus are very low maintenance overall, needing little watering or protection from disease or pests. They will need protection during the Winter if you want them to come back next year, a greenhouse is the best choice to ensure they maintain a temperature where they will survive. When you receive your plant, dig a hole twice the size of the pot and fill in the area around the plant with compost. A 3 inch layer of mulch should also be applied around the base of the plant, then water it to keep it moist until it's established.