Main points of propagation of rosemary

Rosemary has the cool smell of grass and the smell of sweet camphor. Europeans have always regarded it as an irritating herb. The difficulty of artificial cultivation of rosemary is not high, and propagation can be done by sowing, cutting and striping.

Rosemary

Rosemary is commonly used in seed propagation, cuttage propagation and striping propagation. Seed propagation is generally carried out in the greenhouse in early spring, paper towels can be used to promote germination, soil method or hole plate seedling can be used. Cutting propagation is mostly carried out from winter to early spring, and fresh and healthy stems that are not completely lignified are selected as cuttings. Striping propagation is to make use of the characteristic that rosemary stems can produce adventitious roots, bend the branches close to the ground to cover the soil, leave the top in the air, cut them from the mother after growing new roots, form new individuals, and plant them in the open field.

Rosemary cultivation points which rosemary leaves with tea aroma, taste spicy, slightly bitter, often used in cooking, can also be used to make herbal tea. Evergreen shrub, in ancient times, it was believed that rosemary can enhance memory, refresh, regulate anemia, remove freckles, reduce wrinkles and strengthen liver and heart function. At present, it is recognized as the most antioxidant plant. The main antioxidant components in rosemary are sage acid, sage phenol, rosmarinol, ursolic acid, rosmarinic acid and so on. Rosemary is also often placed indoors to purify the air. Rosemary is an evergreen shrub with erect, gray-green, narrow, pointed leaves and pine-scented leaves. It has been regarded as a memory-enhancing herb since ancient times. Light blue flowers bloom in spring and summer. Rosemary, native to the Mediterranean coast, is an evergreen shrub with small blue flowers that look like water droplets in summer, so rosmarinus means "dew in the sea" in Latin. Rosemary also symbolizes loyalty, so it is common for brides to use lost incense as an accessory in European weddings to tell the world that she is unswerving in love. Its English name is derived from two Latin words "ros and marinus", meaning "morning dew of the sea". According to an old legend, the rosemary flowers were originally white. When the Virgin Mary fled to Egypt with the baby Jesus, the Virgin Mary hung her burqa on the rosemary tree. From then on, the rosemary flowers turned blue. On his way from Judea to Egypt, Jesus dried the laundry on rosemary, which was given a lot of medicine. Religious legends have deepened the sacred power of rosemary. In Europe, rosemary is widely planted around the church, and believers regard it as a sacred offering, so rosemary is also known as the rose of the Virgin Mary. Rosemary leaves with tea aroma, taste spicy, slightly bitter, often used in cooking, can also be used to make herbal tea. Evergreen shrub, the ancient thought that rosemary can enhance memory, is currently recognized as the most antioxidant plant. The main antioxidant components in rosemary are sage acid, sage phenol, rosmarinol, ursolic acid, rosmarinic acid and so on. Rosemary is also often placed indoors to purify the air. Planting cultivated rosemary seeds to propagate rosemary seeds germinate slowly and the germination rate is poor. According to literature, if the germination temperature is between 20 ℃ and 24 ℃, the germination rate is less than 30%, and the germination time is as long as 3-4 weeks, but if it is germinated one week before 20 ℃ to 24 ℃ and then treated at 4.4 ℃ (40 ℉) for 4 weeks, the germination rate can be increased to 70%. Rosemary cuttings are therefore fast and secure unless new varieties are introduced abroad, and they can be transplanted after about a month in a shady place. Creeping species can use the branches lying across the soil to be cut first and then buried shallowly, and then cut off the mother plant about a month later, which is another rosemary, but the operation procedure is more troublesome. The management and pruning of rosemary after cultivation must be especially careful when harvesting, especially the Lignification of the old branch is very fast, and too strong a pruning at a time often causes the plant to no longer germinate. it is safer not to cut more than half of the length of the branch each time. To observe the rosemary plant, although there are small buds in each leaf axil, these axillary buds will also develop into branches with the extension of branches in the future. After growing up, the whole plant will not only appear messy because of the horizontal branches, but also become a habitat for pests and easy to get sick because of poor ventilation. Therefore, regular pruning is very important. Upright varieties are easy to grow tall when planted in the field. In order to facilitate management and increase harvest, the top should be cut off when growing after planting, and the lateral buds should be cut 2 or 3 times after germination, so that the plants will be low and neat. Through the detailed introduction of this article, I hope you can gain something! Thank you for your support and attention to Zuihua Network! Key points of cultivation and management of rosemary

Rosemary is an evergreen plant of Rosemary in Labiatae. It is a vanilla ornamental plant with a long history of cultivation. It has dense branches and leaves and elegant flowers and colors. It can be used as ground cover, hedgerow and pot plant in an environment with plenty of light. The fragrance emitted by branches and leaves can relieve tension and depression and enhance memory.

Rosemary is native to the Mediterranean region, likes a sunny, warm and dry environment, is resistant to cold, barren and drought, is afraid of stagnant water, and is suitable for growing in sandy soil with good drainage and calcareous soil. Here are some points for attention in the cultivation of rosemary:

Reproduction

The suitable propagation methods of rosemary include sowing, cuttage, striping and so on. Rosemary seeds germinate slowly and have a low germination rate, so they are usually used only when introducing new varieties. Asexual reproduction is often used in large-scale cultivation of conventional varieties. In small-scale production, excellent plants up to 30 cm to 40 cm in length can be directly used as mother plants, and a large number of lateral branches can be used to collect cuttings by coring to promote the germination of mother plants. 3 cm to 5 cm buds and 7 cm to 10 cm long unlignified shoots on the mother plant can be used as cuttings.

After the cuttings are picked, cut off the basal leaves and put them in a container filled with clear water. In mass production, it usually takes a lot of effort to get your own cuttings, and the economical way is to buy rootless cuttings directly from high-quality seedling merchants.

The cutting substrate can be perlite, peat soil, loess, coarse river sand and so on, or mixed substrate can be used. In order to accelerate rooting, rooting promoters such as indole acetic acid or naphthylacetic acid can be used.

During the rooting period, the suitable temperature in the greenhouse is 22 ℃, and the cuttings should be sprayed frequently, but too much moisture will cause the top of the cuttings to rot and the roots produced are not strong enough. In the first 10 to 14 days, cuttings begin to take root, and special attention should be paid to preventing cuttings from wilting.

Transplant

The cuttings were transplanted after rooting. Generally transplant to a flowerpot with a diameter of 10 cm and plant it in a pot of 10 cm for 6 to 10 weeks, depending on the variety and season. During this period, pruning in time to better grow lateral branches, each pruning should not exceed half of the branch length.

The fertilizer used by rosemary is generally 14-4-14, and the concentration of 125ppm is suitable. During this period, the matrix pH value is kept at 5.8 to 6.2. if you are worried about the change of pH, nitrate nitrogen can be used instead of ammonium nitrogen in winter. At ordinary times, the use of chelated iron can help to maintain the suitable pH value of the matrix.

Watering is the most critical technique in the planting process of rosemary. The basic principle is: if you are not sure whether it should be watered today, water it tomorrow. That is, rosemary is afraid of being wet and not afraid of drying.

Pest management

In humid environment, root rot and gray mold are common diseases of rosemary. If the rosemary plant wilts while the substrate is still wet, the plant needs to be removed from the greenhouse immediately. The most common pests are red leaf mites and white whitefly. At present, the most ideal method is to use biological control. No matter what kind of diseases and insect pests, focus on prevention, can start from the sanitary condition, appropriate water management, reasonable temperature and light, and need frequent observation and timely elimination of weak plants.