A landscape staple in warm-winter regions, agapanthus is a low-maintenance perennial that produces colorful clusters of blue or white trumpet-shape flowers in summer and fall. Agapanthus is sensitive to drought conditions after it has finish flowering. THe A. praecox seem to be doing fine and so is the A. orientalis. These include: improper soil mixture, potting, fertilising and placement in the garden. Agapanthus should be grown in a light, fast-draining soil, enriched with leaf mould and composted manure. If the plants aren't fed, or are given a high-nitrogen feed, they won't flower.' Iron Chlorosis The most common symptom of iron chlorosis -- a lack of iron, particularly in young growth -- is yellow leaves with green veins. Whether grown in a container or in the ground, Agapanthus should be divided every 4 years or so—deciduous types in March, just before they start growing, and evergreen types immediately after flowering. @apple_pie_order - It doesn't snow in winter, but it can get very cold. I am just wondering whether the Agapanthus you are talking about is also perhaps a hybrid variety. THough not with all the Agapanthus. 8. With proper care, agapanthus flowering occurs repeatedly for several weeks throughout the season, then this perennial powerhouse returns to put on another show the next year. Agapanthus is a nearly indestructible plant and, in fact, most agapanthus varieties self-seed generously and may even become somewhat weedy. ... Wombat ,I have an agapanthus problem of a different kind. Tall stalks hold large clusters of purplish-blue or white flowers in summer and early fall. Agapanthus has strappy, green leaves add texture to beds, borders, and containers, too. Culture Problems. Growing Agapanthus In A Pot - How to grow agapanthus in a pot Q. Agapanthus - (1). Q. Agapanthus - My agapanthus is 4 years old and has out grown the flower bed. Cultural problems encompass all possible human errors that might cause problems when growing agapanthus. Zones: 7-10 ‘Storm Cloud’ is the darkest of the robust, semi-evergreen species. I have never encountered this problem myself, but I know why it happens. Agapanthus. Agapanthus can be used as a border plant, in a mixed bed of perennials or in a container. These wonderful plants are blooming machines, which you can think of as essentially the tropical equivalent of the daylily. To ensure a good display next year, keep plants moist until autumn after flowers start to fade, which will encourage the development of new flower … My problem is with the double diamond variety. Q. And it can get up to 45 degrees celsius in summer. Hate the flower boxes and will get rid of them. Deep blue agapanthus growing in a gravel bed at Trenarth Gardens, Cornwall . Agapanthus are known for their large, blue drumstick-headed flowers in summer. 'This is a common question. All too frequently these South African beauties, also known as lilies of the Nile, stubbornly fail to flower. When I cull my agapanthus do I keep the biggest ones that presumably have already flowered ... Q. Agapanthus - When to put out or start watering over wintered agapanthus in a greenhouse? I have the same problem at the moment. Common name: African lily. Will get rid of the plants, aiming for something a bit more straight and square, some sort of hedge potentially. Agapanthus, commonly called Lily of the Nile, forms a large clump of strap-like leaves. Agapanthus is an easy grower but, like all plants, it is susceptible to environmental problems, and a few pests that can turn the foliage yellow. Are there any pest or disease problems? The common reasons for Agapanthus to fail to flower are too much shade, cold weather or lack of winter protection. “It’s a vigorous and heavily flowering form, creating a roll of deep-blue thunder on sturdy stems to 3.5 feet,” explains Hinkley. Agapanthus look great when planted with drifts of ornamental grasses, sun-loving rudbeckias and goldenrod (Solidago). The leaves are dying off and is also mushy. Agapanthus ‘Storm Cloud’. Sometimes it's because the flower bud has been frosted over winter, but the other reason is that agapanthus need a high-potash feed every two to three weeks from mid-March to mid-September. Persuading agapanthus to flower is a topic which exercises many an amateur gardener. Agapanthus have few problems. These South African perennial plants are equally suitable for borders and large containers. The plants are n't fed, or are given a high-nitrogen feed, they wo n't.! Lily of the Nile, stubbornly fail to flower are too much shade, cold weather or lack winter... 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