Peach blossoms can monitor toxic gases, a detailed care guide
China has a long history of cultivating peach blossoms, reportedly over 3000 years. The symbolism of peach blossoms is also very rich, such as spring, love, longevity, and more. Their uses are also wide-ranging, such as their monitoring function, but many people are not aware of it. Below, the Huinong Network editor will tell you about the monitoring function of peach blossoms and a care guide.

1. Monitoring function
Peach blossoms mainly monitor sulfides and chlorine gas. Once these pollutants are produced, the leaves of peach blossoms will develop a large number of spots and slowly die.
2. Care guide
(1) Light
Peach blossoms like sunlight, are cold-tolerant, and fear waterlogging. They need to be planted in well-drained sandy soil and in an open environment with sunlight and good ventilation. If light is insufficient during the growing period, branches will become thin and weak, internodes will lengthen, and flower color will be dull during the blooming period.
(2) Temperature
Peach blossom bonsai adapts to a wide range of regions, but if the winter temperature is below -23°C, the plant will suffer frost damage.
(3) Watering
Peach blossoms fear waterlogging, so drainage must be timely during the rainy season.
(4) Fertilizing
During the blooming period, mainly use nitrogen fertilizer, supplemented with phosphorus and potassium fertilizer. During flower bud differentiation or the fruit growing period, additional phosphorus and potassium fertilizer is needed.
(5) Pinching
For potted peach trees, when new shoots grow to 20 cm, they should be pinched.
(6) Pruning
In summer, pinch the branches; in winter, properly prune long branches to encourage more flowering branches and keep the crown neat.
(7) Placement and arrangement
Peach blossoms can be planted in the ground in courtyards, green residential areas, and parks. Potted plants can be made into bonsai and placed on balconies, windowsills, and rooftop gardens with sufficient sunlight as monitoring indicator plants.
Care guide for canna, which has the function of monitoring sulfur dioxide
Canna is native to tropical America and the subtropics, with aliases such as red brilliant canna, orchid canna, tiger-head canna, and broken-blood red. It has high ornamental value and also has the function of monitoring sulfur dioxide. Below, let us learn about the care guide for canna together.
1. Monitoring function
Canna can remove and monitor the harm caused by harmful gases such as sulfur dioxide and chlorine gas, and issue warnings. When its leaves are found to lose green color and turn white, and flowers and fruits drop, be especially careful of chlorine pollution.
2. Care guide
(1) Light
During the growing period, sufficient light is required, ensuring at least 5 h of direct sunlight every day. If the environment is too dark and light is insufficient, the blooming period will be delayed.
(2) Temperature
Canna likes relatively high temperatures. The suitable growing temperature is 15-28°C. If the temperature is below 10°C, it is unfavorable for its growth.
(3) Watering
Canna can tolerate short periods of water accumulation, but it fears too much water. If there is too much water, it easily causes rhizome rot. When canna has just been planted, water frequently, once a day, but the amount of water should not be too much. During drought, spray water on the branches and leaves more to increase humidity.
(4) Fertilizing
Before planting, sufficient base fertilizer should be applied into the soil. During the growing period, fertilizer should often be applied to the plant as a top dressing. After the plant grows 3-4 leaves, apply liquid fertilizer once every 10 days until flowering.
(5) Propagation
Canna can be propagated by sowing or division.
(6) Pruning
After flowering, cut off the remaining flowers as early as possible to reduce nutrient consumption and encourage the plant to continue sprouting new flower branches. In northern regions, after Frost's Descent, if canna suffers frost, all the aboveground parts will turn yellow and withered. At this time, cut off the withered and yellow aboveground parts, dig out the rhizomes, dry them slightly, then store them indoors buried in sandy soil, and replant them in spring the next year.
(7) Placement and arrangement
Canna can be planted directly in courtyards for appreciation, or planted in wooden barrels or large flowerpots and placed in living rooms, balconies, rooftops, corridors, and other places.
The above is the care guide for canna compiled by the Huinong Network editor. Have you all learned it?
Care guide for rhododendron, which has the function of "monitoring ammonia gas"
Rhododendron is also called yingshanhong, shanjuan, and so on. It is one of China's top ten famous flowers and has extremely high ornamental value. It also has the function of monitoring toxic gases. Below, follow the Huinong Network editor to learn the care guide for rhododendron.
1. Monitoring function
Rhododendron has strong resistance to harmful gases such as ozone and sulfur dioxide, and can also absorb these harmful toxic gases, playing a role in purifying the air. It is also very sensitive to ammonia gas and can be used as a monitoring plant for it.
2. Care guide
(1) Light
Rhododendron is a long-day flower. Even in midsummer, it should not be placed in too shady a place, but rather in a ventilated place and a relatively cool place, that is, a shaded place outdoors. At the end of September and the beginning of October, when sunlight intensity weakens and the weather becomes cool, the shading time should be gradually shortened, and it is best to place it on a southeast-facing balcony in front of the house.
(2) Temperature
In mid-to-late April, move it out of the greenhouse, first placing it in a wind-sheltered, sunny place. In summer, provide shade, or place it in dappled shade under trees, avoiding direct strong sunlight. The suitable growing temperature is 15-25°C, with a maximum temperature of 32°C. In mid-October, begin moving it indoors. In winter, place it in a sunny place, and keep the room temperature at 5-10°C. The lowest temperature must not be below 5°C, otherwise growth will stop.
(3) Watering
In summer, water more and water frequently, because summer temperatures are high, sunlight is strong, and water evaporates quickly. In the morning, water thoroughly; in the evening, water as needed, and spray water on the leaves to keep the leaf surface clean and the environment moist.
(4) Fertilizing
At the end of winter and beginning of spring each year, it is best to apply some organic fertilizer to rhododendron as base fertilizer. After rhododendron blooms in April-May, because the plant consumes a large amount of nutrients during the flowering period, as leaf buds sprout and new shoots extend, apply fertilizer about once every 15 days. After the dog days begin, most branch tips have stopped growing. At this time, which is a high-temperature season, physiological activity weakens, so top dressing can be stopped. After autumn, the climate gradually becomes cooler, and there are sometimes continuous autumn rains. The temperature and humidity are suitable for rhododendron growth. At this time, the last top dressing can be applied. After winter begins, fertilizing is generally not suitable.
(5) Pruning
Pruning and branch training is an important measure in daily maintenance and management work. It can regulate growth and development, thereby making growth vigorous. In daily pruning, a small number of diseased branches and weak old branches need to be cut off. Combined with the shape of the crown, cut off some overly dense branches to increase ventilation and light penetration, which is beneficial to plant growth.
(6) Pinching
During the bud stage, buds should be removed in time so that nutrients are supplied in a concentrated way, promoting larger flowers and brighter colors.
(7)) Placement and arrangement
Potted plants cannot be placed on the ground. It is best to place them on a flower stand or an inverted empty flowerpot, with a shading net or curtain hung above, and it must be maintained.
The above is the monitoring function and care guide for rhododendron compiled by the Huinong Network editor. Have you all learned it? Rhododendron not only blooms beautifully but also has a monitoring function. Friends who like growing flowers should not miss it.