The flowering period of Viola tricolor is generally about two months, from April to June, while the fruiting period is generally from May to August. According to the different sowing time, the flowering time is also different. If it is planted in spring, it will bloom from June to September; if it is planted in summer, it will bloom from September to October.
① staggered sowing time: the sowing time can be staggered, for example, sowing in spring, flowering in summer, and planting in summer, flowering in autumn.
② optimized maintenance measures: keep the soil moist and use thin compound liquid fertilizer; maintain indoors in winter, with the temperature of no less than 12 ℃ in the daytime and no less than 5 ℃ at night; pay attention to give sufficient water and fertilizer during cultivation, so as to make the flowers more and bigger and the seeds develop well and plump..
