The name Brilliant Blue tells you what to expect of this nicely compact agapanthus – brilliantly coloured flowerheads of deepest intense blue held on sturdy stems over a long period in mid to late summer. Well, what else did you expect? The strappy foliage is semi-evergreen, which adds to its charms. Full sun. Any reasonable soil. 18 to 24 in. 2 litre pot.
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Agapanthus Brilliant Blue is a pretty hardy variety, certainly to around -8C, but if you live in area with particularly cold winters, a layer of protective mulch may be a good idea.
Agapanthus have a reputation for flowering best when their roots are contained or restricted. This is certainly true when they are in the first couple of years of development, and they are indeed ideal as specimen plants in a large pot.
Semi-evergreen, or indeed semi-deciduous, is a slightly confusing description. In essence, it means that the severity of the weather conditions in winter will determine how much of the foliage will remain intact. If things are especially bitter, the plant may go completely dormant.
Brilliant Blue is quite new among agapanthus varieties, introduced in 2015. It was developed by New Zealand specialist Vance Hooper of New Plymouth.
Agapanthus Brilliant Blue is a hardy perennial with thick strappy leaves and intense deep blue flowerheads in summer suitable for a sunny position.