Since the irises in Central Europe are usually hardy without any problems, you do not have to protect the plants over the winter in contrast to other similarly exotic-looking flowering plants. However, care that is tailored to the needs of the plant in the fall does not do any harm if you want to count on lots of flowers in the following year.

Fall is the best time to prune irises

The perfect time for planting irises in the garden

Immediately after flowering, irises are a good time to plant if they are to be established in your own garden by planting rhizomes. If you plant the thick tubers in a sunny location in the loosened soil by September or October at the latest, the fine roots can spread out in the soil before winter and thus ensure flowering success in the first year.

Dividing irises in autumn: promoting flowering and rejuvenating plant stocks

Autumn is the decisive time of year for successful propagation of the iris: After all, not only do the seeds ripen about 10-12 weeks after flowering, but autumn also offers optimal conditions for the division of the usually rapidly growing root rhizomes. When propagating and rejuvenating, you should:

  • If possible, only replant the young side shoots
  • cut the rhizome parts with a clean knife and thus promote plant health
  • not to divide the individual rhizome parts smaller than a finger

While some types of iris produce many magnificent flowers even after years in the same location, others need to be transplanted every three to four years to keep them flowering.

The right autumn care for healthy iris stocks

There is actually no real pruning of the leaves of the iris, as is the case with other plants, since they need the energy from the leaf mass for the next growing season. However, the withered inflorescences are usually cut off for visual reasons if the seeds are not intended to be self-sowing. You should avoid covering the iris with mulch (€239.00), as this can lead to rot and mold growth.

tips and tricks

Fertilization with artificial fertilizers should no longer be carried out on the iris in autumn, but you can carefully loosen the soil around the plant with a hoe and bring in some deposited compost as a nutrient reserve for the following year.

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