The flowers at home always fail to thrive - here is why
Adverse effects of light intensity on plants
Adverse effects of overly weak light on plants
When plants grow for a long time under light intensity lower than what they need, new leaves become smaller, leaf color becomes lighter, internodes become longer, and the plant becomes tall and spindly, showing leggy growth. For example, golden pothos (Epipremnum aureum), green pothos and similar plants need more than 400lx of light for normal growth, but when indoor light is dim and they are placed there for a long time, leggy growth will occur.
Variegated foliage plants, such as golden pothos, zebra Dieffenbachia, croton (Codiaeum variegatum) and corn plant (Dracaena fragrans), gradually become lighter and yellow in leaf color with blurred markings when placed under dimmer light conditions for a slightly longer time.
Adverse effects of overly strong light on plants
Some foliage plants have strong shade tolerance and need very low light intensity for normal growth. For example, Calathea plants need very low light; when the light is stronger, the leaves will fold or close, and if it is even stronger, the leaves may be scorched.
When placing foliage plants, the placement position should be decided according to the plant's degree of shade tolerance, avoiding placing them under overly strong direct light or in darker places. In addition, a regular rotation method can be adopted to maintain the beauty of their leaves and plant shape.
Effects of indoor temperature on plants
Plants from different places of origin need different optimum temperatures. Most foliage plants can grow normally above 15 degrees. Excessively high temperatures, such as above 35 degrees, or excessively low temperatures, such as below 10 degrees, will affect the normal growth and development of plants. If plants remain in this state for a long time, many diseases will occur. For example, in winter plants are in a semi-dormant state; if the temperature remains below 10 degrees for a long time, then Philodendron bipinnatifidum, Philodendron 'Emerald Gem', corn plant and others will develop leaf spot disease.
Effects of humidity on plants
Foliage plants prefer a high-temperature, high-humidity environment. If the indoor temperature is not high, then the required humidity is also lower. Under normal conditions, in winter plants are in a semi-dormant state, the air is relatively dry, and the plants can safely pass through the dormant period. In summer the temperature is relatively high, the light is suitable, plants grow relatively fast, and the humidity requirement is correspondingly higher, at above 60%. If the room is dry, water can be sprayed on the leaves every day, or the leaf surface can be wiped with moisture, to increase humidity. If foliage plants remain in a dry environment for a long time, the leaf tips will dry out.
Other factors
In winter, keep plants away from heating, and in summer keep them away from electric fans and air conditioners, so as to avoid harm to plants from an adverse environment.