Selection of cuttings and timing
If you do not have the opportunity to overwinter mature geraniums in a species-appropriate manner or if you simply want to increase your population, propagating cuttings is the right strategy. Only strong and healthy plants with abundant flowers are suitable as mother plants, as the cuttings are de facto their clones and will have the same growth and flowering properties. The ideal time to cut the cuttings is the late summer month of August, but you can also start to do so in early to mid-September.
- Successfully growing and propagating geraniums
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Cut and plant geranium cuttings
This first step is particularly easy:
- Pick out a few strong side shoots five to ten centimeters long.
- These should not have flowers or buds,
- if necessary, remove them carefully.
- Cut or break off the cuttings just below the leaf knot.
- Remove all but the top two leaves.
- Now plant the cuttings in prepared plant pots with potting soil.
- The cuttings should be planted about one to a maximum of two centimeters deep.
- Keep the substrate slightly damp, but not wet.
- Place the cuttings in a light and protected location,
- but avoid direct sun.
Do not use soft shoots!
With geraniums in particular, you should not use any green and still soft shoots for propagating cuttings, they should only be half-ripe. You can recognize them by the fact that they have already turned brown, but are still flexible. Soft geranium shoots tend to rot and are therefore unsuitable for reproduction.
Here's how to properly care for your geranium cuttings
The next step is to properly care for the geranium cuttings so that they can grow into healthy and strong plants.
- The cuttings take root within four to six weeks.
- You can recognize this by the fact that the young plants are upright and are forming new shoots and leaves.
- Avoid direct sunlight
- and put the freshly rooted geraniums in a cool place at around 10 to 15 ° C.
- Water moderately, but keep the substrate evenly moist.
- Avoid wetness and high humidity.
- Do not place the young plants directly over a heater.
- Fertilization is not necessary at first.
- In February, repot the young geraniums in a larger container with nutrient-rich, pre-fertilized soil.
Hibernate geranium cuttings
In contrast to the older specimens, geranium cuttings should hibernate in a light but cool place at 10 to 15 ° C. The young plants should be watered regularly, but fertilization is not necessary. Starting in February, as soon as the geraniums are repotted, you should slowly wake them up from hibernation. Gradually increase the temperature, keeping in mind that the warmer the plants, the lighter they must be. Begin fertilizing carefully about six to eight weeks after repotting.
Before you put the young geraniums outside from the middle to the end of May, slowly get them used to the changed weather and surroundings by initially only putting them outside for hours and gradually extending these times.