Detailed Guide to Baby Blue Eyes Planting Methods and Daily Care Techniques
Baby blue eyes (Nemophila menziesii) is an annual herbaceous flower belonging to the genus Nemophila in the family Hydrophyllaceae. It has 5 petals, with a flower diameter of about 1-3 cm. The commonly seen flower color is pale blue; there are also white flowers with small black dots scattered at the center, or white flowers with purple blotches at the outer tip of each petal, and even flowers with black petals (the black portion varies, ranging from deep purple to black, not entirely black) edged with white. Its flower colors are so distinctive they can be said to have no equal.
5. If covered with plastic wrap, remove it promptly after the baby blue eyes seeds germinate, and promptly move the pot to a place with scattered light to receive light. In addition, after the baby blue eyes seeds germinate, apply some liquid fertilizer in a timely manner, such as potassium dihydrogen phosphate, at a concentration of about 200 times dilution; the concentration should not be too high. After they grow a bit larger, fertilize according to the plant's growth condition.
6. When the baby blue eyes seedlings grow to 2-3 leaves, they can be transplanted. When they have 5-6 leaves, plant them out in a timely manner. Before planting out, place a little slow-release granular fertilizer (such as compound fertilizer) and decomposed organic fertilizer at the bottom of the pot.
7. If you want the plant to be fuller in the future, you can pinch off the tips or pinch out the growing points. This also has the effect of dwarfing.
Care Methods
Growing medium: Due to its epiphytic nature, the potting medium should not be soil, but rather sphagnum moss, pumice, tree fern scraps, charcoal fragments, etc., or the seedlings can be fixed directly onto a tree fern board (also called snake wood) and allowed to attach and grow on their own. This cultivation method imitates its original ecological environment. When it blooms, hanging the whole board on the wall for viewing indeed has a unique charm. Iris has many aerial roots, and their root tips are emerald green and quite sensitive; they must be carefully protected and must not be touched or damaged, otherwise the root will stop growing.
Temperature: The suitable growth temperature is 20-30 degrees Celsius. Below 15 degrees it enters dormancy, and below 10 degrees it is prone to death. However, above 35 degrees high temperature affects growth and makes it prone to disease. Flowering requires experiencing one month of low temperature at 15-18 degrees to promote flower bud differentiation; if low temperature continues thereafter, the flower stalks will sprout slowly. Air: Baby blue eyes likes an environment with high air humidity and good ventilation. The air should be kept at 60%-80% humidity, and air circulation should be maintained, preferably with a gentle breeze. There should not be excessive water accumulation in the pot; if the roots are surrounded by liquid water for 6-8 hours, they are very prone to rot. Therefore, ventilation is the key to growing baby blue eyes well, and the medium needs to be loose and breathable so the roots grow strong and healthy. Avoid dry, hot wind. When growing in northern winters, it must not be placed on radiators or directly facing air conditioner airflow.
Water: Baby blue eyes is not drought-tolerant, and due to its epiphytic nature it also fears waterlogging. During high summer temperatures, keeping the material moist is sufficient; you can use spraying to lower temperature and increase humidity (but do not let water remain in the leaf center, as it easily causes crown rot). You can also place a moist towel beside the pot to increase humidity, but be sure to note: the roots must not remain overly damp and dark for a long time, especially being surrounded by liquid water for a long time, which makes them very prone to rot. For example, in summer the daily watering amount should be such that it can naturally air-dry the same day, alternating dry and wet, which will greatly reduce the incidence of root rot and disease. In winter, water less and only keep the material slightly moist.
Fertilizing: The fertilizing principle for baby blue eyes is to apply thin fertilizer frequently, and absolutely avoid overly concentrated chemical fertilizer. A suitable concentration is about 1 times further diluted than the concentration stated on the fertilizer packaging, that is, about 1500-2000 times dilution. Special fertilizer for baby blue eyes can also be used. During the growth period, apply nitrogen and potassium fertilizer; during the flower-promoting period, apply phosphorus and potassium fertilizer. Applying once a week or once every half month is sufficient. Do not fertilize during the flowering period or dormancy period, but pay attention to appropriately supplementing fertilizer before and after flowering.
Flower-promoting conditions: Flowering of baby blue eyes is mainly affected by temperature. Flower bud differentiation requires low-temperature stimulation. After stimulation for one month at daytime 20-23 degrees and nighttime below 18 degrees low temperature (but it must not be below 15 degrees for a long time), the dormant buds in the stems can be transformed into flower buds. Afterward, when the flower buds break through the epidermis and grow into flower stalks, a relatively higher temperature is needed, with the normal growth temperature being suitable; continuous low temperature will cause the flower stalks to emerge slowly, the flowers to be smaller, or even to wither midway. Appropriately increasing sunlight during the flowering period helps produce larger, more colorful flowers and earlier blooming.
Disease prevention: Because baby blue eyes grows in a high-temperature, high-humidity environment, it is susceptible to pathogen attack, and once disease occurs it spreads rapidly, so prevention should be the priority. Common viral diseases include leaf spot, root rot, and anthracnose. In normal times, chlorothalonil can be used (this fungicide has good preventive effects and low pathogen resistance, but has no therapeutic effect on already diseased plants. The upgraded product of guanjuqing, the Dacotech formulation, is even more effective), or thiophanate-methyl (this fungicide can prevent and treat, but pathogens easily develop resistance, so it must not be applied alone for a long time) at 1000-1500 times dilution for prevention and control, spraying once every seven or eight days, for 3 consecutive sprays. These liquid medicines leave white marks on the leaves; there is no need to wipe them off, as this helps them continue to exert their fungicidal effect.