When does marigold bloom
The editor will tell you about when marigolds bloom and a brief introduction to the flowering period of marigolds in the green plant and flower category. Let's learn about it together.
Marigold is an annual herbaceous flower of the marigold genus in the Asteraceae family, also known as large hibiscus, marigold lamp, honeycomb chrysanthemum, smelly chrysanthemum, scorpion flower, etc. It is native to Mexico and is distributed throughout China. Marigolds are often sown in spring. The plant has a special smell, large and beautiful flowers, full and overlapping petals, and a long flowering period, so marigolds are often used for flower bed landscaping and can also be potted. Marigold flowers are yellow or orange, single or double-petaled, and come in various shapes, including tall, dwarf, small marigolds, and slender marigolds.
Marigolds prefer warm and humid conditions, require plenty of sunlight, and are adaptable, but do not grow well in extreme heat. They are not picky about soil, but a fertile, deep, humus-rich, and well-drained sandy soil is preferred. The flowering period of marigolds is from June to October. The optimal growth temperature for marigolds is between 15-25°C, with the optimal flowering temperature being 18-20°C. The relative humidity of the growth environment should be between 60-70%. If the temperature is below 5°C or above 30°C, it will cause the plant to grow tall and thin, with loose stems and leaves and fewer flowers. Therefore, the winter temperature should not be below 5°C, and the summer temperature should not exceed 30°C.
I. Propagation methods of marigolds:
The main methods of propagating marigolds are播种(sowing) and cutting propagation.
Sowing propagation: It is generally carried out from March to April each year, and it can be carried out in seedlings or directly sown in the courtyard. If sowing in a greenhouse or in a warm indoor area using flower pots, sowing can be done as early as February. The common sowing methods include drill sowing, furrow broadcasting, or bed broadcasting. After sowing, cover the soil so that the seeds are not visible, and use straw mats or plastic film to cover and keep the soil moist. The daytime temperature should be 21°C and the nighttime temperature should not be below 17°C. Generally, seedlings can germinate within 7 days. When the seedlings grow to 5 cm high, they should be transplanted once. Marigolds can be planted after they have 5-7 true leaves. To control plant height, sowing can also be done in summer, with flowers blooming 60 days after seedlings emerge.
Cutting method: Marigolds can be cut in summer, which is easy to root and quick to grow. Cut 8-12 cm tender branches from the mother plant as cuttings, remove the lower leaves, insert them into the potting soil, 3 cuttings per pot, water thoroughly after planting, slightly shade, and they can root after 2 weeks. Then, gradually move them to a sunny area for daily management, and they can bloom in about 1 month.
II. Planting: Marigolds can be planted after they have 5-7 true leaves. They can be planted in flower pots or around the courtyard. If planting in a continuous area, the spacing between marigold plants should be 30-35 cm, not too dense to affect ventilation, as excessive density can lead to severe powdery mildew later. If direct seeding in flower pots or around the courtyard, thinning is required after seedlings emerge.
III. Water and fertilizer management: The management is relatively simple. After transplanting seedlings, they should be watered frequently to keep the soil moist. They do not like too much water during the growing period. If excessive watering occurs, it can lead to yellowing and falling leaves. Watering should be done when the soil is completely dry to promote root growth. Pay attention to timely fertilization. Fertilize every 20 days from planting to flowering, using diluted decomposed human waste, decomposed cake fertilizer, etc. It can also use dried cow and pig manure mixed with cake fertilizer powder and a small amount of ammonium sulfate or urea, scattered in the rows for weeding and mixing with the soil. Top-dress with root exterior fertilizer when the flowers are in full bloom, with the喷施(time) preferably in the late afternoon. During the dry season in the summer flowering period, water should be provided in time to avoid leaf drop and frequent fertilization to extend the flowering period.
IV. Daily management: After planting, it is necessary to pinch the top to promote more branching and flowering. Regularly till the soil to remove weeds, keep the soil loose, reduce water evaporation, and promote air circulation, which is an important task to ensure the rapid and healthy growth of marigold seedlings. Pay attention to the prevention and control of red spiders. After flowering, prune the残花(withered flowers) and branches to update the flower branches, which can extend the flowering period.
V. Seed collection: From June to October, the flowers bloom, and after the flowers wither, the seeds gradually turn black and mature, which can be harvested in time, dried in a ventilated place, and the seeds should be cleaned and stored in bags to prevent mildew and insect infestation.
This article shares the full content of when marigolds bloom and a brief introduction to the flowering period of marigolds, hoping to help you and also hoping that everyone will come to see more green plant and flower experience and common sense!