What hydroponic plants are hardy in winter?

The choice of hydroponic plants is simple. Hydroponics with strong cold resistance can be directly selected, and those with little or no cold resistance can also spend the winter safely. Special consideration should be given to the north-south border area, where there is no heating but it is as "freezing beautiful" in winter. At this time, you will miss the cold-tolerant plants such as chlorophytum, brown bamboo and narcissus.

Choose hydroponic plants carefully in the flower market. Some profiteers will take hydroponic plants under the tap and put them in beautiful glassware as hydroponic plants.

To see through the tricks of these profiteers, we only need one move to defeat the enemy. That is to observe carefully what color the roots of plants are. If it is delicate white or even transparent, it is a hydroponic plant.

If the roots are brown or khaki and rough, they can only grow in the soil and be temporarily pulled out for hydroponics. Friends in Taiwan Province can wave their sleeves and never bring a pot of plants.

For the hydroponic plants that whine and move home, we must first choose a "land of geomantic omen". In fact, the so-called "land of feng shui" is mainly to avoid the wind.

Avoid facing doors and windows to avoid frostbite caused by cold wind. If you put it on the balcony, it must be a balcony facing south, and don't put anything facing north. Because water is extremely sensitive to temperature changes, it may freeze into ice.

light

No matter what plants need sunshine, especially in winter. Therefore, hydroponic plants should be placed in the most sunny place indoors, such as behind the south-facing window glass (not facing the openable window).

When the weather is fine, hydroponic plants that stay indoors for a long time can also be taken to the balcony for air and sunshine.

temperature

Generally speaking, the temperature limit of hydroponic plants is about 5 degrees Celsius. If Taiwan Province friends try their best to fail to reach this temperature, they must take unconventional measures.

Transparent plastic bags can be used to cover hydroponic plants and hydroponic vessels together to maximize heat preservation.

It should be noted that in this way, firstly, several holes must be punched in the plastic bag to breathe; Second, we must always pay attention to the temperature. Once the outdoor temperature is higher than 10 degrees, we should take off the plastic belt immediately.

Otherwise, once hydroponic plants adapt to the warm greenhouse environment, they will be inseparable from plastic bags in the future. Taiwan Province friends don't want to watch hydroponic plants at home only through plastic bags every day, do they?

water

In winter, the temperature is low, and both water transpiration and plant growth cycle are at the lowest level, so it is necessary to reduce the water level of hydroponic plants. The specific water level should be reduced to 1/2 or even 1/3 of the water level of ordinary hydroponic plants.

In addition, extend the time and frequency of water change, and change the water once every half month or so. And pay attention to the temperature difference of water when changing water, put new water in the same environment for a period of time, and try to keep the old and new water temperatures consistent.

obese

Hydroponics entered the slowest growth stage in winter, and the demand for fertilizer also fell to the lowest point. Therefore, the director suggested that basically no fertilizer should be used for nutrient solution. I really want to add some fertilizer to further dilute the nutrient solution, so that hydroponic plants can "eat" lightly.

humidity

Hydroponics grow in water for a long time, and its microenvironment is very humid. In addition, hydroponic plants are often green leaves, and the dry climate in winter is very unfavorable for their growth, and it is easy to make their leaves lose luster or dry up.

In order to cope with this situation, you can take a watering can from time to time and spray water mist consistent with the water temperature of hydroponic plants, and remember to spray it on both sides of the leaves to increase the humidity of the plants. This will not only make the hydroponic plants more moist, but also make the leaves thicker and brighter.

Finally, introduce a secret.

When taking a bath in winter, move hydroponic plants to the bathroom and let the lingering hot air fumigate the plants. This is the best way to effectively use heat energy. Of course, be careful not to splash bath water on hydroponic plants. Hydroponics don't like shower gel and shampoo, hahaha.