How to grow sunflowers
Sunflowers, which exist like sunshine envoys, have become a popular choice for home gardening in recent years. The golden and splendid flower plate not only lights up the home space, but its "born towards the sun" characteristic also contains positive life energy. By mastering scientific planting methods and avoiding maintenance misunderstandings, you can also create your own mini sunflower flower field on the windowsill. The whole process of sunflower planting analyzes the key preparations before planting to select seeds with full grains and no mildew. Soaking in warm water at 50 ° C for 2 hours can improve the germination rate. It is recommended to use a mixed substrate with nutrient soil: perlite =3:1 for soil to ensure drainage and breathability. The sowing depth is strictly controlled within 1cm. Too deep may lead to rotten seeds. After sowing, carefully maintain the substrate during the germination period (3-7 days) to keep the substrate moist but no water accumulation. Use a spray bottle to replenish water regularly. After the seedlings break the soil, gradually increase the light duration: ·Week 1: scattered light for 1 hour in the morning·Week 2: Increase to 3 hours of direct light·After week 3, full-sun maintenance and transplanting are the best time to grow 4 true leaves. When transplanting with soil to avoid root damage. Three major taboos for family planting Environmental taboos ① Insufficient light: <4 hours of light per day will lead to thin stalks and deformed flower discs. The north-facing balcony needs to be used with a fill light.② Closed environment: Poor ventilation can easily induce powdery mildew, and the air circulation rate must be greater than 0.5m/s. Maintenance Misunderstanding ③ Excessive watering: Water the topsoil when it is dry to a depth of 2 cm. If the water accumulates for more than 12 hours, the roots will rot. It is recommended to use a pottery basin + tray combination to control water. Interpretation of Fengshui Disputes The so-called folk saying of "recruiting yin" stems from the homophonic association of "sunflower" and "ghost". Modern horticultural research shows that volatile terpenes released by sunflowers actually purify the air, and balcony planting can also enhance indoor lighting through light reflection.
By accurately controlling the light cycle and water management, and regularly applying phosphorus and potassium fertilizers (applying potassium dihydrogen phosphate solution every 10 days before flowering), it only takes 60-80 days from sowing to flowering. It is recommended to choose dwarf varieties such as "teddy bear" and "sunshine (X-J)", and control the plant height at 30-50cm is more suitable for family cultivation. Remember to harvest sunflower seeds in time when the flower tray is fully unfolded to experience the complete fun of planting.