How to grow garden irises successfully? – Decoration Elle


Posted May 10, 2024 at 10:01 am.


A beautiful bunch of irises – ©fotolinchen/iStock

Garden irises are timeless. They compose and color the flower beds from April to June. They are easy to grow, bring a touch of yellow, purple, salmon and many other colors to both the garden and in bouquets that bring flowers to the house.

Bearded iris flowers always delight gardeners. Both flower stems and leaves are essential in flower beds to add volume and color. Dare to put a few irises in a vase to create a seasonal bouquet. ELLE.fr takes you into the poetic world of garden irises. How to plant, combine and maintain them to benefit from spectacular blooms ?

Fall on the killer whale

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©Alexander Pyatenko/iStock

Garden irises (Iris germanica or bearded iris) bloom from April to June depending on the region and offer an endless palette of colors: from black to blue, from purple to purple, from yellow to white, smooth or spotted. The sword-shaped flowers open to amaze pickers and gardeners and sometimes offer a sweet fragrance. Hundreds of varieties find their place in flower beds, for drawing borders and coloring ceramics. Their evergreen leaves are just as decorative once the flower stems fade. Feel free to combine varieties to create multi-colored beds and then enjoy early and late blooms. You can also team up pseudacorus iris Or versicolor bloom around the pond. As regards iris reticulatagrow them in a rockery, flower pot or at the front of a bed with dwarf irises as they are not very tall, around 40cm.

How to combine irises with the garden?

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© Kurti fans/iStock

First of all, know that irises are one of the plants that will enjoy it in all regions of France, regardless of the climate, because they are very resistant. Next, play around with the height of the planted varieties create path boundaries who will lead you to the bottom of the garden or to vegetable garden border which borders the vegetable plots. another idea flower wall or good in front of the facade of the house liven up the walls. Also combine irises with foxgloves, delphiniums and lupins to create a vertical bed. Complement irises with air plants such as stipas, pennistum or anthriscus to bring lightness to your bed. Depending on your wishes, cultivate a monochromatic or iridescent atmosphere by mixing colors.

Iris, successful planting

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©SusanHSmith/iStock

Iris Enjoy the sunshine and one ordinary substrate but well drained to offer extraordinary flowering. They like it everywhere in France. Allow space as rhizomes, once established, tend to develop and spread. Rhizomes like very loose soil, without standing water, like bulbs. Provide sand or gravel at the bottom of the planting holes. You can find potted irises for planting after flowering, from July and you can plant them until May, avoid very cold days. Irises are found in the form of rhizomes for transplanting (during division) or in a pot with a lump of soil.

Basic steps for planting an iris plant:

  • clean the place to keep it clean;
  • dig the earth deeply so that it is flexible and conforms to the foot;
  • dig a hole;
  • place sand or pebbles on the bottom to create a drainage bed;
  • add some soil;
  • loosen the root ball from the pot or cut half the leaves from a bare root plant;
  • let the foot be flush with the surface and filled with earth;
  • leave 30 cm between each foot for flowering;
  • water abundantly.

For planting in a pot, provide a drainage hole and put clay balls or gravel in the bottom before filling it with soil. Add a saucer under the pot.

Irises on site will require little care, be resistant to all climatic conditions (drought, heat, snow, winter) and bloom for many years.

Iris, what rate to water them?

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©VITALII BORKOVSKYI/iStock

Water abundantly when planting. Add a little water during flowering unless the ground is completely dry and the spring promises to be dry. Excess water will rot the rhizomes, so water the right amount. Mulching to maintain moisture at the base of the irises. Regularly remove weeds that compete for water in the soil.

Do irises need pruning?

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©cjmckendry/iStock

Irises require little maintenance. Several pruning steps must be followed to encourage flowering. As flower stems fade, cut them off at the level of the legs so that the iris tufts are always clean. As for the leaves, cut them as soon as they are completely dry, so that the irises are always aesthetically pleasing. Do not cut it while it is still green. Be patient. Cutting off spent flowers prevents the plants from exhausting themselves in seed production.

Irises, divide them to prolong flowering

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©Cindy Shebley/iStock

It is advisable to divide the iris legs every 3 or 4 years clumps are too dense to aerate, which can suffocate neighboring plants. The plants will thus regenerate and produce more flowers. Division takes place after flowering, in July to October, when irises enter a period of rest. How to do it ?

  • equip yourself with a gouge fork;
  • water the site well to facilitate the operation;
  • gently lift the tuft;
  • tear off pieces of rhizomes with your hands or cut them;
  • discard any pieces that are too small or damaged;
  • cut all the green leaves in half with pruning shears or a knife;
  • also cut off half of the roots;
  • replant them immediately.



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