How much does a jin of rose seeds cost? Time and methods from planting to blooming

Rosa multiflora, also known as multiflora rose, climbing rose, wall rose, thorny rose, Qiang rose, thorny moss, wild rose, is the general name for some plants in the genus Rosa. So how long do its seeds take from planting to blooming? What is the price per jin? How do you plant them? According to Manager Fang of the Suqian nursery stock base, the price of Rosa multiflora seeds is around 30 yuan/jin, and the sowing rate per mu is 10--15 jin. They can be sown in all three seasons: spring, summer and autumn.

How long do Rosa multiflora seeds take from planting to blooming?

Rosa multiflora seeds generally bloom the following year. First prepare the potting soil, mix the proportions, soak the seeds, place the seeds in the appropriate position in the potting soil, cover with a suitable amount of soil, and soak in water. Cover with newspaper and keep in a ventilated, shaded environment for 2-3 days, keeping it alternately dry and moist. When germination begins, uncover the newspaper; once growth is good, transplant into a flower pot and place in the sun.

How do you plant Rosa multiflora seeds?

Planting time:

Rosa multiflora can be planted in all four seasons of the year. During the growing season the root system must be kept moist, and in winter it must be protected from the cold, but the best time is after leaf fall in autumn until before bud break in spring, with the period from leaf fall in autumn to before the ground freezes being the optimal planting period. To make the plants grow and expand the flower cluster as quickly as possible, large-hole planting must be carried out, with holes 1 m long and 1 m wide and 0.6-0.8 m deep, or a planting trench 0.6-0.8 m deep and 0.6-0.8 m wide dug. Apply organic fertilizer and superphosphate per plant, mix evenly with soil and apply concentrated at a soil depth of 0.2-0.5 m, firm the soil after planting, and water thoroughly in time.

Seed propagation method:

Rosa multiflora seeds have a dormancy period. If sown directly, they will only emerge gradually after more than a year, so before sowing the seeds must first be treated to break dormancy.

Treatment method: stratification for sprouting is commonly used. Soak the seeds in water for 1——2 days, remove them and mix with 3 times their volume of moist sand, with the moisture level such that a handful of sand holds together as a ball without water seeping out between the fingers. Put the sand-mixed seeds into a container and keep them moist at all times. This treatment is usually carried out in winter; before sowing in spring, sieve out the seeds, dry them in the sun and sprinkle with water. Once half of the seeds have cracked open, they can be sown.

Other cultivation methods:

Rosa multiflora is very vigorous, not choosy about soil, cold-tolerant and drought-tolerant, and can make its home anywhere, north or south. Propagation generally uses the cutting method; as long as it is shaded and kept moist, the survival rate is over 90%. You can also press trailing branches into the soil during the growing season, and once they have rooted, cut them off and plant them separately. Sometimes grafting or sowing is also used.

Watering and fertilizing

Rosa multiflora likes moisture but fears wetness and waterlogging. From bud break to before flowering, water a little more generously, to the degree that the soil is moist but not waterlogged. After flowering, do not water too much; the soil should be alternately dry and moist. In the rainy season, pay attention to drainage to prevent waterlogging.

Rosa multiflora likes fertilizer and also tolerates poor soil. In March, apply 1 to 2 times a nitrogen-based liquid fertilizer to promote the growth of branches and leaves; in April and May, apply 2~3 times a fertilizer mainly of phosphorus and potassium to promote more buds and more flowers; after flowering, apply one more rejuvenating fertilizer, after which no further fertilizing is needed. Rosa multiflora is a sun-loving flower that likes warmth and also tolerates cold; in North China and areas to its south, it can overwinter safely outdoors.

Pruning and trimming

Rosa multiflora has strong sprouting ability and grows luxuriantly. If not pruned in time, under conditions of stuffy heat, humidity, insufficient light and poor ventilation, it is prone to pests and diseases, so prune once after flowering. When pruning, you can select strong semi-lignified branches of the current year for cuttings, place them in half shade, and after they survive, transplant and set them out the following spring; you can also, before bud break in early spring, cut off the rooted suckers from the base and plant them separately.

Pest and disease control

Under conditions of frequent rain, humidity, poor ventilation and poor sunlight, Rosa multiflora is prone to powdery mildew. Once discovered, the diseased branches should be cut off and destroyed to avoid contagion, and a low-concentration lime sulfur mixture or Bordeaux mixture or thiophanate solution should be sprayed to prevent the spread of the disease.