Purple pudding sowing
Soil disinfection shall be carried out before sowing, so as to cultivate strong seedlings and prevent diseases and pests at seedling stage. After sowing, cover with fine soil screened by fine screen, and the thickness of cover should be no seeds. Sowing time: spring sowing in the first and middle of March. Autumn sowing in early August. Control the temperature between 15 ℃ and 25 ℃ after sowing, and the seedlings will emerge in about a week p>
Ramet propagation of Viola
Firstly, the greening land shall be ploughed, applied with sufficient base fertilizer, leveled, and the effect shall be faster when propagating by dividing plants. When transplanting by dividing plants under the same conditions, the slow seedling of small viola is faster, the survival rate is high, and the green period is long p>
Natural propagation of Viola
Zihuadiding has strong self propagation ability. Let it fall with the wind and reproduce naturally p>
Seedling management of Viola yedoensis
Strengthen the management after the seedlings come out, especially control the temperature to prevent the seedlings from growing in vain. At this time, the light should be sufficient. The temperature should be controlled at 15 ℃ during the day and 8 ℃ ~ 10 ℃ at night to keep the soil slightly dry p>
Management of Viola sativa during its growing period
Viola has strong growth and strong resistance. During the growth period, it needs special management. Organic fertilizer can be applied every 7 ~ 10 # days in its peak growth season. Will make its landscape effect more. During the growth period, pay attention to pulling out weeds, generally do not apply topdressing, and pay attention to drainage in rainy season p>
Seed harvesting of Viola vulgaris
When the seeds of Viola vulgaris are dried after maturity, they will crack rapidly and pop up the seeds. Therefore, it should be harvested after the capsule is erected and before the seed is cracked. In the process of seed drying, it should be noted that the capsule should be covered with a window screen to avoid seed bullets falling off. Then sift and dry store the seeds p>