Experience: understand these five stages of marigold flowers in full bloom

Calendula originated in South America and New Mexico. This vibrant annual flower can grow up to 1.2 meters tall in a suitable growing environment and has bright orange, yellow, red and cream flowers. Marigolds need wet but not overly wet soil to thrive, and they tend not to blossom continuously in shady places. Marigolds go through different stages before blooming. Understanding these stages and the basic principles of marigold growth will ensure that your garden will have many gorgeous flowers.

Variety

The plants of the genus Calendula are classified according to their large, semi-short, short and other characteristics. There are four main kinds of marigolds. African marigolds can be up to 35.6 cm high and flowers up to 8.9 cm in diameter. There are many varieties of marigolds in France. It ranges from 30.5 cm to 40.6 cm high, and the diameter of the flower can be up to 5 cm. Triploid is a hybrid between Africa and France. The triploid flowers are about 5 cm in diameter and vary in color depending on the climate in which they grow. Single marigolds look almost like daisies with long stems.

Planting

Plant calendula in a well-drained flowerpot and put it in a unit or apartment. Cover the seeds with 0.6 cm vermiculite or perlite. Do not pour water directly on the soil, use spray bottles to keep the soil moist. Keep the soil temperature between 15.6 ℃ and 21.1℃.

Germination: stages 1 and 2

If the right climate, soil conditions and light are provided, marigold seeds will begin to germinate within three to five days as part of the first stage. To promote seed germination by covering seeds in a seed basin or flat ground. Test the pH value of the soil and make sure that the ph value is between 6.0 and 6.2. The second stage is when the radicle emerges from the soil after germination.

Cotyledons: stages 3 and 4.

When cotyledons or the first green stem appear in the third stage, use 50-75 parts per million of calcium or potassium nitrate fertilizer to fertilize marigolds, according to data provided by Auburn University (Auburn University). At this stage, the marigold can begin to receive plenty of sunlight. The temperature should be kept between 15.6 ℃ and 18.3 ℃ to promote flowering and keep the stem growing. In the fourth stage, the cotyledons of calendula will unfold in preparation for flowering.

Florescence: the fifth stage

According to a study by the University of West Virginia, marigolds bloom within 45 to 50 days after planting. At this time, you can transplant the marigold into the garden or flowerpot to keep the soil moist, remove the flower head, and promote continuous flowering. The temperature should be kept between 16.7 ℃ and 22.2℃ during the day and 18.3 ℃ at night.