How to fertilize gladiolus

Three stages of fertilizing gladiolus

Phase 1: Apply base fertilizer. Adequate basal fertilizer can promote rapid growth of bulbs and shorten the flowering time.

The second stage: apply fertilizer once at the 2-leaf stage, 4-leaf stage and after flower cutting after emergence. These three small stages are the key to the growth of gladiolus. As long as they can be passed safely, it can grow healthily.

The third stage: From August to September, the new bulbs are growing rapidly and top dressing is required. The bulbs grow rapidly and can store certain nutrients, which is more conducive to wintering.

What fertilizer to use for gladiolus

Gladiolus is sensitive to the salt, fluorine and chlorine content in the soil, so you should be cautious in choosing fertilizers. Try not to use triphosphates. You can use other phosphorus fertilizers instead to prevent the leaf tips from drying out.

When applying top dressing, you can choose root fertilization or foliar fertilizer, which should be combined with watering to promote the effectiveness of the fertilizer. Commonly used fertilizers are: ammonium nitrate, potassium nitrate, superphosphate, potassium dihydrogen phosphate, ammonium sulfate, potassium sulfate, urea, etc.

Specific fertilization method for gladiolus

During the growth period, phosphorus fertilizer is the main fertilizer, supplemented by nitrogen fertilizer. During the seedling stage, fertilizer is applied according to the three small stages of growth, about 5g per plant. Note that when fertilizing, the granular fertilizer should be mixed with fertilizer water for irrigation, which is more conducive to absorption.

During the growth period of mature plants, spray foliar fertilizer with 1% potassium dihydrogen phosphate solution or new branches every 5 to 7 days.