The hardy balloon flower is relatively easy to propagate, both by seed and by dividing the root ball. You don't have to decide on one method, you can use both in parallel and thus achieve different results.
After flowering, seeds can be collected for balloon flower propagation
In July and August, the Chinese bellflower delights the viewer with flowers in different shades of blue, sometimes also in pink or bright white. The flower color depends a little on the location, because the blue flowering varieties need a lot of sunlight, while other colors prefer partial shade. By cutting the wilted flowers, you can extend the short flowering period a little.
propagation by division
If your plants are at least four or five years old, you can consider propagation by division. To do this, dig up the root ball in spring and divide it with a sharp spade. Plant the sections in the same or a different location. Add well-rotted compost to the planting hole before planting the root parts back to the same depth as before.
Propagation by seed
The seeds of your balloon flowers are not varietal, which means that if you sow the seeds of your own flowers, you will not necessarily get the plants you expect. The collected seeds should be stored dry until use. If you want a specific flower color or height, then you should rather buy seeds of the balloon flower you want.
From about the end of February, sow your balloon flowers in the greenhouse or on the window sill in seed pots. Gently wet the surface without washing away the seeds. Keep vessels dry and warm, but so that they are protected from direct sunlight.
The essentials in brief:
- self-collected seeds not pure
- light germinator
- Slightly moisten the substrate and seeds
- Protect seedlings from direct sun, slowly get used to it
- Root division only in older plants
- fertilize organically when planting the root parts
- water well until sprouting
tips
Repot your balcony plants about every three to four years and share the plants on this occasion.