Belonging to the iridaceae family, irises compose a vast genus of more than 200 species, themselves declined in multiple varieties. Native to temperate regions, they are cultivated throughout the northern hemisphere. A distinction is made between bulbous irises and rhizome-shaped irises. These are the most commonly found in gardens. In both cases, the irises are perennial plants with alternate leaves that have flowers in cymes of three petals and three tepals. The capsular fruit contains seeds.
The flowering period of iris bulbs runs from May to July. Its flowers are renowned for their pleasant fragrance and the diversity of their colors, some of which may present surprising shades of white, yellow, blue or mauve. The size of the iris varies from 20 to 90 cm depending on the species. The iris is the ideal plant for the beginner gardener: it offers a charming spectacle and is not very fragile. The cultivation of bearded iris or garden iris is the easiest to carry out.
You should plant your irises in summer or early fall, preferably in the sun and in well-drained soil. It is recommended to loosen the soil well when planting, and to leave about 30 cm between the plants.
Some maintenance principles must be observed to make your irises more beautiful: for example, you must hoe regularly, cut the leaves at the beginning of autumn or even remove the flowering stems after the end of flowering. Make sure the space around the iris is clean, free of weeds. It is important to provide a complete fertilizer twice a year, before and after flowering. It will only be more advantageous.
Remember to water regularly (once a week) in the summer.
The irises need to be pruned every 4 years between July and September. To do this, you just need to divide each tuft into large pieces to keep only the beautiful rhizomes. Also cut the leaves in half and replant immediately.
The main enemies of the iris are aphids. They generally lodge under the leaves of the plant. Light green in color, they are visible to the eye. To get rid of it, just spray soapy water on the plant. You can also do this as a precaution. Find the iris and perennial iris in the shop!