What is the best fertilizer for periwinkle?

Fertilization time for Catharanthus roseus

1. During the flowering period of Catharanthus roseus, fertilizer is generally needed once every 10 days to make the flower color more colorful, the number of flowers more and the flowering period longer, so that it can grow rapidly. Organic fertilizer is the main fertilizer, supplemented by compound fertilizer.

2. Catharanthus roseus basically needs to be fertilized once a month, and water-soluble fertilizer should be applied once every half a month. However, in the process of applying water-soluble fertilizer, the concentration of the water-soluble fertilizer must be controlled well. The concentration should not be too high, which can make the flowers more colorful and increase their ornamental value.

What fertilizer to use for Catharanthus roseus

Catharanthus roseus needs to be fertilized with water-soluble fertilizer, which should be applied once every seven to ten days. The amount of fertilizer should be reduced in winter. Compound fertilizer can be mixed in the soil as base fertilizer when potting. When the plant shows the need for topdressing, add water-soluble fertilizer.

Fertilization method of Catharanthus roseus

Catharanthus roseus should be given additional fertilizer once a month during the flowering period, with organic fertilizer as the main fertilizer and compound fertilizer as the supplementary fertilizer. This can not only ensure the brightness of the flowers during the flowering period, but also prolong the flowering period to achieve the maximum ornamental value.

Precautions for fertilizing Catharanthus roseus

Catharanthus roseus enters a dormant period in winter, when the plant stops growing and the root absorption capacity weakens, and it mostly relies on consumed nutrients to maintain itself. Applying fertilizer once before winter can increase its cold resistance and safely overwinter.