Why doesn't the osmanthus tree bloom?
As one of the top ten famous flowers in traditional China, the osmanthus tree is very popular for its rich aroma. However, many flower lovers have found that carefully maintained osmanthus trees have not yet bloomed, which often hides multiple factors such as soil, light, water and fertilizer. This article will analyze the four core elements to help you accurately locate the root cause of the problem. Analysis of core conservation elements Soil improvement plan Osmanthus trees grow best in slightly acidic sandy loam soil with pH 5.5-6.5. Alkaline soil can cause the loss of iron and cause the phenomenon of burnt edges of yellow leaves. Suggestion: Change the substrate for potted plants every 2 years (legular soil: river sand: organic fertilizer =5:3:2), use 1:1000 vinegar solution to irrigate the roots for ground planting every month, and use pine needles to cover the soil structure. Light control techniques require at least 6 hours of direct light every day, especially during the flower bud differentiation period from August to September. Recommendation: Full sunshine in spring and autumn, 40% shade from 11 to 15 in summer, and use fill light to extend the light in winter. Pay attention to avoid sunburn damage caused by reflections from glass curtain walls. The water management standard adopts the rule of "see dry, see wet": water is poured thoroughly when 2cm of topsoil is dry, and spray it in the morning and evening in summer to increase humidity. Control at key nodes: Reduce the amount of water by 30% during the bud period to promote flowering, and return to normal after flowering. Accumulating water will cause suffocation of the roots, so ceramite bottom can be used to enhance drainage. The N-P-K ratio of the precision fertilization strategy is 3:1:2 during the growth period, and adjusted to 1:3:2 during the flowering period. Recommended plan: Apply decomposed cake fertilizer in March, apply potassium dihydrogen phosphate (800 times liquid) in June, and replenish bone meal in September. Special note: Stop fertilization when the high temperature exceeds 35℃ or the low temperature is below 10℃.
By systematically adjusting the maintenance plan, significant improvements are usually visible in the following year. It is recommended to keep a maintenance log, record data such as temperature, humidity, and fertilization time, and gradually establish a maintenance system suitable for the local climate. After mastering these skills, you will surely be able to harvest the scenery full of golden osmanthus fragrance.