When planting dahlia, it is suggested to speed up the sprouting of root tuber first, so that its bud points can be clearly displayed. There are two situations after germination. One is that the new buds can be used for cutting directly, and the original bulbs can be replanted, so that propagation can be carried out. Still have can carry on division to bigger block root, carry on planting again, also can promote bud to carry on planting directly..
1. There should be enough nutrition growth space, because the underground part of dahlia is relatively large, so the flowerpot should be at least 20cm above when planting; the planting hole should be at least 20cm above when planting.
2. Dahlia's bulb root is afraid of water logging, so the soil used must be loose, fertile and well drained sandy loam to prevent water logging during its growth.
3. Before germination, it's better to soak its tuberous roots with fungicide to avoid infection of wounds caused by bacteria. Generally speaking, we can keep the temperature of germ stable above 15 ℃.
4. The cultivation of Dahlia needs a long time of light, so it is necessary to put it in the sunny environment after the root sprouting to make it grow more robust.
