The iris, also commonly known as the iris, is one of the oldest flowering plants cultivated in horticulture in Europe. The plant with the decoratively shaped flower can be propagated relatively easily even by laypeople.
How to propagate an iris plant?
To propagate irises, divide the rhizomes with a clean knife after flowering. Cut off the old roots and plant the newly formed pieces in loose soil so that the rhizomes poke out easily. Then pour generously.
The right time to propagate irises
The iris generally forms new roots on its rhizomes after flowering. Therefore, when propagating by division, you should, if possible, choose the time to dig up the plants directly after flowering. In principle, you can also grow the iris from seeds, but this requires some patience. After all, after sowing the iris seeds, it can take up to three or four years until the first flowers appear on the plants.
Propagation and cutting of the iris to ensure flower formation
Propagation by division is also more practical for irises than growing from seeds, as the irises have to be dug up and rejuvenated every three to four years anyway. If this care measure is not carried out, the number of iris flowers may decrease or even disappear completely. When dividing, you should also shorten the roots and leaves accordingly. This also stimulates the growth of new roots and promotes growth in the new location.
The correct procedure for propagating and transplanting
When propagating the iris by division, the following steps are particularly important:
- digging with a spade (€29.00 on Amazon) or with a digging fork
- dividing the rhizomes with a clean, sharp knife
- cutting off old roots
- careful planting at the correct planting depth
When divided in autumn, cut, fine roots will soon be freshly reproduced on the tuberous rhizomes. Place the divided specimens in soil that is as loose as possible and ensure that the planting depth is not too deep. The rhizomes should, if possible, protrude slightly from the soil. The roots are washed with soil by watering generously.
Tips & Tricks
If necessary, you can also divide and propagate the irises in spring. But then it may be that your irises will not bloom again until the following year.
