Cosmea planting tutorial, a complete guide from sowing to harvest

This article guide:

Choosing the right planting time, preparing the planting soil, sowing method, managing cosmos, pruning and shaping, harvesting and preserving

Cosmos, also known as large cosmos, is deeply loved by flower enthusiasts for its bright colors and long blooming period. In China, cosmos has become a common flower for garden beautification and flower bed arrangement. This article will provide you with a detailed explanation of the planting methods of cosmos, from sowing to harvesting, to help you easily grow beautiful cosmos.

Choosing the right planting time

Cosmos prefers a warm and sunny environment, with the best planting time being spring and autumn. Spring sowing can be done from April to May; autumn sowing can be done from August to September, when the temperature is suitable for cosmos growth.

Preparing the planting soil

Cosmos is not particular about soil, but prefers well-drained, fertile, and loose sandy soil. Before planting, the soil can be deeply turned over and fertilized with an appropriate amount of organic fertilizer to improve soil fertility.

Sowing method

1. Before sowing, soak cosmos seeds in warm water to promote germination.

2. When sowing, evenly scatter the seeds on the soil surface, with a covering thickness of about 1 centimeter.

3. After sowing, keep the soil moist, spraying water 1-2 times a day, and the seeds will germinate in about 7-10 days.

Managing cosmos

1. After germination, thin the seedlings in time, retaining plants with a spacing of about 10 centimeters.

2. Water regularly to keep the soil moist but avoid waterlogging.

3. Fertilization: During the growing period, apply a compound fertilizer once a month to promote cosmos growth.

4. Pest and disease control: Cosmos is susceptible to pests such as aphids and red spiders, and pesticides should be sprayed in a timely manner for prevention and control.

Pruning and shaping

Cosmos grows quickly and should be pruned in time to remove diseased, weak, and dry branches, ensuring good ventilation and light for the plants. During the flowering period, flower buds can be pruned appropriately to promote more blooming.

Harvesting and preserving

Cosmos has a long blooming period, generally from summer to autumn. When the flowers are fully open, they can be picked for flower arrangement or dried for preservation. Picking should be done in the morning or evening to avoid direct sunlight.

Cosmos planting is simple. By mastering the key points of planting time, soil, sowing, and management, you can easily grow beautiful cosmos. I hope this planting tutorial is helpful to you and wish you successful planting!