How to propagate Coleus blumei the fastest: The cutting method and precautions for Coleus blumei propagation.

How to propagate Coleus fastestLet's talk about how to propagate Coleus fastest and the cutting methods and precautions of green plants and flowers, the specific contents are as follows:Coleus is a perennial evergreen herbaceous plant, usually cultivated as an annual or biennial, with variable leaf colors that can be admired throughout the growing season. The flowers are small, light blue or light purple, blooming from summer to autumn, and are widely used as ornamental foliage plants. Coleus mini pot plants can be planted on indoor desks or window sills for display, or used as edging materials for flower beds and borders, providing a plant landscape for people to enjoy.Coleus can be propagated by both sowing and cutting. Cuttings produce faster-growing Coleus plants, earlier flowering, and maintain the characteristics of the original variety. Coleus cutting is simple and easy, and also very easy to survive, so enthusiasts can experiment more.Coleus used for plant landscapingAlthough Coleus is easy to cut and survive, there are many factors that affect the rooting and survival of cuttings. If not careful, it is not easy to survive. This article focuses on the content of "propagation of Coleus by cutting," learning "three tricks" of cutting to make Coleus root quickly, with high survival rate and good growth, hoping to help friends who love flowers and plants.01Best time for Coleus cuttingAlthough Coleus can be cut and survive all year round, the best time for cutting Coleus is from April to June and from early September to October. Because Coleus prefers warm and humid climatic conditions, these two time points have suitable temperatures, not too cold or too hot, and relatively fast growth rate and high活力 of branches. Cutting Coleus at this time can promote rooting and improve the survival rate of cuttings.ColeusColeus has very poor cold resistance. When the temperature is below 10°C, the plant stops growing, and when it is below 5°C, the leaves fall off, or even die. If you want to choose winter cutting, the temperature should be kept above 15°C, and shading is not required. In summer, high temperatures can easily cause water evaporation, and humidity can lead to disease, reducing the survival rate of cuttings. If shading and cooling measures can be taken to control the temperature at around 20°C for cutting, it is also possible.02Technical points of Coleus cutting1. Selection of mother plant for cuttingExperiments have shown that lateral branches are easier to root than main branches; hard branch cuttings from the base of branches root better; green branch cuttings with top shoots as cuttings root better than those from the lower part; nutrient branches are easier to root than fruiting branches; and removing flower buds is better for rooting than leaving them on.Through cutting propagation, the good traits of the mother plant can be preserved, but if the selected Coleus mother plant is malnourished, with weak branches, and carries diseases, the cuttings taken will definitely affect rooting. Therefore, it is necessary to select cuttings from a Coleus mother plant with good traits, good nutrition, normal growth, and strong branches.Selecting healthy Coleus branches for cuttings2. Treatment of selected cutting branchesSoft branch cutting is a method of using the top soft branches of the plant as cuttings during the growing period.During the peak growing season, most herbaceous flowers grow rapidly, and soft branch cuttings can be combined with pinching and pruning of Coleus. 15-20 days before taking cuttings, strip a circle of bark about 5-7mm wide from the base of the branches to be used as cuttings, which can improve their rooting ability.3. Timing and treatment of cutting cuttingsIt is best to take cuttings in a cool place early in the morning when it is hot, to reduce water evaporation. Coleus branches in the morning contain more water, and the wounds are easy to heal after cutting, making them easy to root and survive.The length of the cuttings can be about 8cm, with some leaves removed, disinfected with a carbendazim solution, and placed in a cool place to dry before preparing for cutting.4. Selection and disinfection of substratesColeus prefers acidic soil, so an acidic substrate with a pH value can be prepared, which should be moist, warm, loose, breathable, clean, and rich in organic matter, and preferably low-cost.Coleus fastest propagation methodSubstrate nutrient soilNever use garden soil, which is heavy and nutrient-poor. Common cutting substrates include humus soil (usually acidic, with a pH of 4.6-5.2), peat soil, vermiculite, perlite, rice husk ash, sand, etc. In addition, the substrate should be disinfected with a 5% formalin or 5% potassium permanganate solution.5. Specific operations during cuttingAfter all preparations are made, insert the disinfected cuttings into the substrate, making a small hole with a thin stick or glass rod before insertion, gently insert the cutting, with a depth of 1/3 of the cutting, and a spacing of about 7cm. Press the substrate to hold the cutting in place, water immediately, and place it in a well-ventilated, shaded area.Using disposable cups for cutting Coleus, or using cell trays03Post-cutting care and management of ColeusAfter cutting Coleus, since the roots have not yet germinated, careful management is required, otherwise it will affect the germination and growth of the roots. The specific management measures are as follows:1. Temperature managementDifferent types of flowers have different requirements for cutting temperatures. For Coleus, a daytime temperature of 20°C and a nighttime temperature of above 15°C are easier for rooting. Adjusting soil moisture and increasing soil temperature is beneficial for promoting the formation of callus at the base of Coleus cuttings, with soil temperature 3-5°C higher than air temperature being most suitable.2. Humidity managementThe moisture content of the substrate should be around 50%. High air humidity should be maintained before the cuttings root, as the cuttings rely on their own balance of water. About 90% relative humidity is required. Water can be sprayed to avoid excessive transpiration of the cuttings. Especially since Coleus cuttings have leaves, short-term wilting after temperature rises can delay rooting, and dryness can cause leaf drying or falling, leading to rooting failure.Using a spray bottle to water appropriately, keeping the substrate moist and air humidity3. Light managementShade Coleus cuttings initially, then gradually increase light to enhance leaf photosynthesis and promote callus formation. 30%-50% shading is suitable for spring, summer, and autumn, otherwise strong light can easily burn the leaves, causing the cuttings to lose water, and at this time, the roots have not yet germinated, which can cause the branches to dry up.4. Ventilation managementAfter about 15 days, Coleus can produce roots, and timely ventilation is necessary to promote faster and more root growth.5. Light application of organic fertilizer solutionAfter Coleus has rooted, a slow-release organic fertilizer solution can be applied to promote nutritional supply during the growth stage and promote branching by pinching later.6. Transplanting seedlings to small potsAs the cuttings grow larger and become stable and strong, they can be transplanted to small pots, usually 10*10cm in size. Be careful not to damage the roots, as they are prone to disease. After a period of growth, the plant can be transplanted to a larger pot.Vigorous ColeusSummaryThis article focuses on "Coleus cutting" as an entry point. Due to its rich colors and high ornamental value, many enthusiasts like Coleus. Coleus can be cut and survive in all seasons, and as long as the specific points and steps of cutting are known, the survival rate is relatively high.Coleus grows well in warm environments, so the best time for cutting is spring, early summer, and autumn. Clearing the key points of Coleus cutting, such as "selection of the mother plant, cutting and processing of cuttings, selection and disinfection of substrates," as well as specific operations during cutting, can complete the cutting work. Afterward, good cutting care management, including "temperature, humidity, light, ventilation, and organic fertilizer solution," is necessary to promote the rooting and growth of Coleus.The above is the specific content about the fastest propagation of Coleus and the cutting methods and precautions from Green Enthusiast Network. Unauthorized reproduction is prohibited!