Periwinkle is a perennial herbaceous plant, for the oleander family, periwinkle genus of sub-shrubs, sown in January-April each year, 14-15 weeks after sowing will bloom, periwinkle's hardiness is relatively poor, so in the Yangtze River Valley and other regions are mostly cultivated as annual plants. Periwinkle can live for three to four years if properly maintained. Periwinkle grows well in warm, sunny environments, with a suitable growing temperature of fifteen degrees Celsius to twenty-five degrees Celsius.

Periwinkle is an annual or perennial

Periwinkle is a subshrub of the family Oleaceae, genus Periwinkle, is a perennial herbaceous plant, sown in January-April each year, 14-15 weeks after sowing will bloom, periwinkle's hardiness is relatively poor, so the Yangtze River Valley and other areas are mostly cultivated as annual plants.

Periwinkle growth habit

Periwinkle is a perennial herbaceous plant, if properly cared for, it can live three to four years, periwinkle grows well in warm, sunny environments, suitable for growing temperatures between fifteen degrees Celsius and twenty-five degrees Celsius.

Keep the soil slightly moist when raising periwinkle is the best state, maintain the soil dry in winter on the line, generally in the planting of periwinkle can be rotting soil, peat, garden soil, sand and other materials to be used after mixing.

Precautions for the maintenance of periwinkle

In the winter when the temperature is low, it is best to move the periwinkle indoors, if the indoor temperature is less than 5 degrees Celsius, put a plastic bag on the outside to keep warm.

Potted periwinkle is best to change its soil every two years, because long-term watering and fertilization can lead to soil stagnation, in the spring of each year can be carried out to change the potting soil work, at least half of the old soil should be removed, and replaced with a larger pot to replant.