There are various methods of propagating spiraea. Just try out which one you like best and with which method you achieve the best results, this can also vary depending on the variety of spirea.
Spiraea can be propagated by cuttings, for example
increase by subsidence
The lowering method is so simple that even beginners should be able to do it easily. To do this, bend a shoot of the Spiraea that is close to the ground down into a groove in the ground. Cover a few centimeters of the shoot with soil so that the tip sticks out at least 15 cm. Roots will soon form underground, only then can the young plant be separated.
multiply by division
Root sprouts can be separated quite easily. Plant them in potting soil. If the sprouts are watered regularly, they should sprout easily. Both new roots and above-ground shoots are formed. If these are about 20 cm tall, the young plants can be transplanted. However, they are still somewhat sensitive to frost. They should therefore only be planted outdoors in late spring or at the end of May.
Propagation by cuttings
It is best to cut the cuttings right away during the maintenance cut after the flowering period or in spring. The shoots should be at least 15 cm long and semi-lignified. Defoliate the cuttings and remove any buds.
Then plant the cuttings in a peat-sand mixture or lean potting soil. Water the cuttings well and cover the seed pots (€16.68) with foil or a glass plate. At 20 - 24 °C and a warm, humid climate, the cuttings should form roots fairly quickly. It is best to wait until after the ice saints in May to plant them out.
The best propagation tips:
- simplest possibility: lowering
- during maintenance pruning: propagation by cuttings
- when transplanting: cut off root sprouts
tips
Use maintenance pruning to gain cuttings and transplant your spiraea to separate root sprouts.