Agapanthus can be propagated from seed or division. You can restrict their spread by de-heading dead flowers before they turn to seeds and carefully disposing any plants you remove. Seed should be sown in deep (10 cm) trays, in a mixture of equal parts river sand and fine compost, and kept semi-shaded and moist. Although agapanthus are the ultimate easy-case plant, you should take care to remove the finished flower heads. RESIDENTS growing agapanthus plants are urged to take to their gardens and remove the seed heads before they open and release their potentially invasive seeds. Agapanthus are easy to grow from seed and you may get flowering plants in as little as two years.. You plant the seeds in late summer or in the fall, and they sprout in six to eight weeks. Whether grown in a container or in the ground, Agapanthus should be divided every 4 … Off with their heads! Agapanthus- time to remove seed heads Agapanthus- you great us in summer with your friendly ball shaped flowers, you don't need much attention or care you just grow and grow. How to Prune Agapanthus. Besides, headless flower stems are unattractive. Lily of the Nile (Agapanthus spp.) You could also avoid the risk of uncontrolled spread by buying a variety with low seed viability such as Cloudy Days or Queen Mum™ Agapanthus. Where is the best place to plant agapanthus? These are quick to seed and can often become a menace in suburbs adjoining bushland areas. It must be kept in the refrigerator or it will perish. These sway on tall stems above clumps of strappy foliage. i have agapanthus in a large pot out side all year round and it is hardy in east yorkshire. Collect seed when the seedhead is becoming brown and the capsules are starting to burst. These dramatic sun-loving border plants produce large spherical flowerheads, usually in beautiful shades of blue, from midsummer onwards. I tend to leave the seed heads on for the dirds and then the frosts make it pretty all over again. produce large orbs of white, blue or purple flowers atop 2- to 4-foot tall stems. Division is best done after flowering but it can be done any time. Agapanthus species can be propagated by seed. Should you remove agapanthus seed heads? Agapanthus are easy to propagate by division - between spring and early summer, or in early fall, after plants have finished flowering. Seed should be sown in spring; germination usually takes 1-4 months. Root bound potted plants can be divided every 4-5 years. While it does well with neglect, a little care, water and fertiliser will greatly improve agapanthus flower production. Time to prune agapanthus. If you miss removing the faded flower and a seed pod has already started to develop, go ahead and remove the seed … as morgana says you could try growing the seeds but they take several years before they are big enough to flower. If the weather is turning cold you can collect seed prematurely and store the whole seedhead in a paper bag, but it’s preferable to let the seed … Remove the foliage when it withers and dies back. Come mid summer your flowers start to fade and your once attractive features are replaced with dull looking seed heads. How to grow agapanthus. With a plant like Agapanthus, which won't repeat flower, I leave the seed heads as they are quite attractive and from my experience don't … Seed can be sown fresh, in late summer - autumn, but in cold climates it can be kept refrigerated (not frozen) and sown in spring. The idea is to remove any evidence that there was a flower at that location. Growing agapanthus from seed requires the most patience, as it can take years to see the first flowers from the new plants. When deadheading, always remove the stem that attaches the flower to the plant when you remove it. It will take 3-5 years to flower from seed. Generally agapanthus grown from seed will reach maturity and bloom in three to four years.