Rose Planting Methods and Key Technical Points

Roses are drought-tolerant plants that fear waterlogging; almost all xerophytes are susceptible to waterlogging. If grown in pots, use unglazed clay pots and strictly follow the principle of "do not water until dry, and water thoroughly when you do." If roses are watered frequently (especially avoiding excessive watering on humid, overcast, rainy days with low evaporation), the roots will rot as if being "pickled" (which is fundamentally different from hydroponics) and the plant will die.

When growing plants indoors, do not leave them in dim rooms for long periods; regularly move them to sunny spots to supplement light. Without photosynthesis, plants stop producing the nutrients needed for growth, and their physiological cycle of water and nutrient transport (the light-pump effect) breaks down, leading to yellow leaves, rotting leaves, rotting roots, and eventually death.

All plants prefer light fertilization only; applying concentrated fertilizer (especially chemical fertilizer) will cause localized root rot and death. Depending on the size of the plant and pot, apply 20-40 granules of compound fertilizer (or nitrogen fertilizer) evenly about 1 cun below the soil at the edge of the pot every 1-1.5 months, or water once or twice a month with a light liquid fertilizer such as fully fermented rice-washing water. As long as the leaves are green, the flowers are bright, and growth is healthy, no further fertilizing is needed.

Use a seeding tray or pot. The medium used for sowing must be clean and free of pests, diseases, and fertilizer. After filling with the medium, water it first. When sowing, you can broadcast the seeds or sow them individually, but sowing individually saves more seeds; place each seed one by one, with spacing based on the width of one finger. After sowing, lightly cover with clean medium, with a covering depth preferably not exceeding twice the thickness of the seed; very fine seeds may be left uncovered.

After sowing, seal the surface of the pot with plastic wrap and poke several holes in the wrap; this both retains moisture and protects the seeds from external disturbances. Finally, place the seeds in a cool, ventilated place and wait for them to germinate. Once germination is noticed, move the pot to a bright location, but do not expose it directly to strong sunlight. When the seedlings grow tall enough to touch the plastic wrap, the wrap can be removed. When the seedlings have grown two leaves, place them where they receive direct sunlight in the morning and evening to prevent leggy growth; at this point you can also begin fertilizing with a quick-acting fertilizer with an NPK ratio of 20-20-20, diluted 2000 times, applied once a week. When the seedlings have about 5 or more leaves, they can be transplanted into other pots!