Corydalis did not grow very much in Europe, so Corydalis was not so sensitive to light. But Corydalis likes sunshine very much. If you give more light to Corydalis, it will grow more branches. It doesn't affect its growth in the dark.
If the pH of the soil is 5.5 to 6.5, it needs good drainage and more organic matter. Peat and Pearl salt can be mixed 1:1 for sowing. Keep the soil moist.
The origin of Corydalis determines that Corydalis can withstand severe cold and even mild frost. Corydalis can survive a winter in warm areas such as the south. Corydalis can't be raised in the place with too high temperature. 10 to 15 degrees is the best temperature. If it's over 30 degrees, it can't grow normally.
After the tender leaves of Corydalis seedlings grow, 50-75 ppm nitrogen fertilizer can be used, and then gradually increase the concentration to 100 ppm. Potassium fertilizer should also be supplemented appropriately, and the ratio of the two should be 1:1.5. Trace element solution should also be sprayed to supplement Fe, Mg
Corydalis may be damaged by aphids, spiders, thrips and other pests. It should pay attention to the cleanness of the cultivation environment and not be planted in places with pests. There are often leaf ring disease, downy mildew and so on. Controlling soil pH value can also reduce the probability of Corydalis disease.
If encountering high temperature, corydalis should be cooled in time, and the plant should be placed in a ventilated place to prevent Corydalis from wilting. Corydalis can't be watered too much, because Corydalis grows in a cool environment, so it doesn't need too much water. Keep it indoors. It is difficult for Corydalis to have the best growth environment. Corydalis needs less fertilizer. At least it won't burn fertilizer very much. The flowers raised at home need to be fertilized. After watering Corydalis a little, corydalis will grow healthily and produce small flowers with wonderful colors.
