Sowing is a common way of propagation of Campanula. If reproduction is carried out in this way, it will take about ten years from planting seeds to flowering, which is relatively long
Its natural flowering is from May to August, but due to many factors, its flowering may be delayed to October. Naturally, in May and June, we can see its flowers on the branches. Especially when spring and summer intersect, the temperature is the most appropriate, warm but not hot, this is the best time for flowering. If handled properly, its flowering period is very long, even from May to October
1. Sufficient light: it is a plant that likes light very much. It must be enough light, don't worry about the light too strong will burn it, because it has a certain heat resistance.
2. Proper amount of fertilizer: more nutrients are consumed in flowering, so it is necessary to supplement them properly. If not supplemented, it will bloom less, or even not open at all, mainly to supplement phosphorus and potassium.
3. Proper pruning: generally prune in spring, and cut off some of the dense branches. As for the weak branches, do not leave them.