Inadequate sunshine, insufficient watering and overcrowding can cause a bearded iris to lack flowers. In addition, being planted too deep or getting too much nitrogen will prevent flower growth. More »

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Gardeners should cut back an entire bearded iris plant in the fall. However, after the first set of flowers dies in early summer, a gardener should cut the stalks at the base of the plant to encourage new blooms. More »

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Garden Guides advises gardeners to fertilize a reblooming iris with a 6-10-10 mixture, after the first bloom. Prune the iris between blooms, cutting the stalks all the way to the base. Do not remove the leaves. Divide th... More »

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The African iris, also called butterfly iris or fortnight lily, is a group of six plant species in the genus Dietes. They were reclassified from Moraea because they spread by rhizomes. Five Dietes species are native to t... More »

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Some common types of flowers include daisies, geraniums, daisies, hydrangeas, iris and violets. In addition, roses, lavender, sunflowers, tulips and morning glories are frequently cultivated varieties of flowers. More »

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A successful method of dividing irises is to dig up the iris clumps with a spade or garden fork, gently lifting and shaking each clump to remove excess soil. All leafless, soft and rotting tubers are discarded, and the r... More »

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Plants with purple blooms include verbena, lavender, clematis, bellflower and dwarf iris. These plants are popular for their easy care and are perennial in the right climates. More »

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