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Feb 14, 2023 · Irises are beautiful perennials that, depending on the type, can bloom between late winter and early fall. Narrowing down flowering times is important when choosing specific varieties for your plot – that way, you can plan how to use them (and what to plant alongside them) accordingly.
- Holly Crossley
- When to Plant Irises
- Where to Grow Irises
- How to Care For Irises
- Pests and Diseases
Plant iris bulbs (bulbous irises) in autumn, typically from September to November in the UK. Some bulbous irises (such as Iris reticulata) flower as early as February, so it's important to plant them in good time otherwise they will flower late. Don't worry too much if you plant your iris bulbs later than November, as long as the bulbs are firm and...
Bulb iris need full sun and must have well drained soil or the bulbs can rot. You can plant iris bulbs of dwarf iris such as Iris reticulata, in pots either outdoors or under protection in a greenhouse or a cool well-lit room. As with most bulbs, plant iris bulbs two to three times the depth of the bulbs itself. There's no need to soak them before ...
Allow leaves of bulbous irises to die back naturally so the bulb can build up energy for next year. Ensure iris bulbs don’t get too wet, particularly in winter, which can cause rotting. Bearded iris are long-lived but flowering declines once clumps become older and congested. Rejuvenate them by dividing and replanting the younger, outer parts of th...
Irises are affected by a number of disease caused by bacteria and fungi. Some affect the leaves while others affect the plant below the soil, including the bulbs and rhizomes. Leaf spot is most commonly found in bearded iris, and shows as small spots on the leaves with a brown or yellow margin. Remove infected leaves at the end of the season and bu...
- BBC Gardeners' World Magazine
Growing irises is easy and provides some of the earliest blooms in the garden; later-flowering varieties compliment summer-flowering plants. Whether in containers or in the open garden, they are hardy and provide colour year after year.
- Bearded Iris. For many people these would be the archetypal iris. Over the years they have been classified into several groups; miniature dwarf, standard dwarf, intermediate, border, miniature tall and tall, reflecting their height and the size of the flowers.
- Siberian Iris. Often planted near to water these attractive flowers will also grace any sunny border and will tolerate drier soils once well established.
- IRIS RETICULATA. This small and delicate iris grows from bulbs rather than rhizomes and will appear in the spring having been planted in the autumn, preferably in a well drained and sunny position.
- Dutch iris. Also grown from bulbs this Iris is often seen in the florists trade and is available year round as a cut flower. They can be grown like reticulata but flowering in May/June and, of course rather taller.
Jan 12, 2023 · However, there are several times of the year when irises are in bloom. These times generally correspond to the peak of the plant’s reproductive cycle. In some parts of the world, this can begin as early as late March (e.g., California), and it can last through the end of June.
Irises set flower initials in August, determining how many flowers each stem will carry the following May. To set the maximum number of flower initials, the plants need to be undisturbed and warmed by sunlight between August and October.
Iris flowers typically bloom in the late spring to early summer, around May to June, depending on the specific variety and climate. These beautiful flowers are known for their vibrant colors and unique shapes, adding a pop of color to gardens and landscapes during the spring season.
