How to grow Buddleja officinalis? The latest technical methods and tutorial
Buddleja officinalis, also known as Jiulixiang, Xiaojinhua and Menghua, is a plant in the Loganiaceae family. It can be used as medicine and has the effects of dispelling wind, cooling blood, nourishing the liver and improving eyesight, and is often used to treat various eye diseases. So how should Buddleja officinalis be grown? Let's take a look at the detailed introduction.
1. Site selection and land preparation
Buddleja officinalis prefers a warm and humid environment. When planting, it is best to choose sandy loam with deep soil layers, loose and fertile soil, and good drainage. After selecting the site. After selecting the site, plow it to a depth of 30-40 cm, harrow it fine and level it, then make seedbeds 1.2-1.3 m wide, while for the field, apply rotted farmyard manure as base fertilizer, preferably 1500-2000 kg per mu, and then make the beds and wait for planting.
2. Propagation methods
Buddleja officinalis is propagated by seeds. The best sowing time is in autumn. On the prepared seedbed, open furrows at a row spacing of 35 cm and a furrow depth of 3-4 cm. Then sow the seeds evenly into the furrows and cover with 0.5 cm of soil. It should not be too deep, so as not to prevent the seeds from emerging smoothly. It is best to cover with a layer of rice straw to keep warm and moist and facilitate emergence. After sowing, keep the seedbed moist frequently. When the seedlings emerge, remove the covering straw promptly. Cultivate for 1-2 years, and when the seedlings grow to about 1 m, they can be transplanted. After digging out the seedlings, prune their root systems, trim off excess fibrous roots, then open holes at a plant and row spacing of 2×2 cm for transplanting, planting one plant per hole, firming the soil after covering, and watering thoroughly to settle the roots.
3. Field management
After the seedlings emerge, loosen the soil and weed promptly, so that there are no weeds in the field, and keep the soil moist frequently. After each fertilization, an appropriate amount of dilute fertilizer water may be applied to promote seedling growth. After transplanting, cultivate and weed 3-4 times each year, while also earthing up to prevent the root system from being exposed and the plants from lodging. During the flowering and fruiting periods, apply topdressing once each, preferably with a nitrogen-phosphorus-potassium compound fertilizer, or organic fertilizer or farmyard manure may also be chosen. For plants over 3 years old, once the main trunk and form are set, weak branches, diseased and pest-infested branches, dead branches and sprouting branches from the root system should be pruned away to reduce nutrient consumption.
4. Pests and diseases
Buddleja officinalis basically has no diseases during cultivation. Most of the time, it is harmed by pests such as stem borers and red spider mites. Stem borers mainly harm young branches, and during the egg-laying period of the insects, imidacloprid or monocrotophos can be sprayed for control; red spider mites mainly harm leaves and can be controlled with dimethoate.
The above is an introduction to the cultivation techniques of Buddleja officinalis. I hope it can help you. If you want to learn more related knowledge, please stay tuned to us.