Flowers suitable for northern winter planting (1): distinguish the requirements for light;
1. Positive flowers: such as magnolia, rose, pomegranate, plum blossom, pansy and Scutellaria barbata;
2. Neutral flowers: the light requirements are not strict. Such as jasmine, osmanthus, osmanthus;
3. Negative flowers: such as asparagus, tortoise shell bamboo, green radish, rubber tree, bamboo shovel, dragon Bai Shu, etc.
⑵: According to the requirements of lighting, the time is divided into
1. Flowers with long sunshine time: the sunshine time is more than 12 hours every day, such as iris, aster and impatiens.
2. Sunshine flowers: such as carnations and roses. ;
3. Flowers with short sunshine: the sunshine must be less than 12 hours per day. Such as poinsettia, chrysanthemum and so on.
(3): Temperature
1. Cold-tolerant flowers: can tolerate the low temperature of about MINUS 20 degrees. Such as winter jasmine, begonia, elm leaf plum, Hosta, clove, day lily, wisteria and so on.
2. Semi-cold-tolerant flowers: can tolerate low temperature of about minus 5 degrees, such as tulips, roses, chrysanthemums, pomegranates and peonies.
3. Flowers that are not cold-tolerant: such as asparagus, Eupatorium odoratum, variable leaf wood, poinsettia, hibiscus, calla lily, Prynne and succulents.
⑷: The importance of water in flower cultivation.
1. Pay attention to water quality: according to the ratio of magnesium salt to calcium, hard water and soft water are divided, and it is better to water flowers with soft water. Rain is the most ideal, followed by river water and pond water.
Remember: don't use dishwashing water or water with washing powder. Let the tap water dry for a day before use, so that the chlorine in the water can be fully volatilized.
2. Pay attention to the water temperature: do not quench and heat.
The method of planting Chinese rose in winter in northern China is 1. Soak the newly picked Chinese rose in water for 30 minutes to 2 hours. If it takes too long, the new roots of Chinese rose will suffocate and die. Soaking in water only hopes to replenish the water lost by Chinese rose during transportation, and the soaking time depends on the transportation time and the water loss of branches.
2. After soaking in water, shallow bury it with wet sand, spray water every day, and put it on a cool balcony to wait for it to take root and sprout. Moisture should not be too much, which is not conducive to root growth. When the buds on the branches of Chinese rose flowers begin to grow leaves completely, it means that the roots have grown. Don't pull it every day. 15 degree temperature, and survived in 7 days. My home is a layout structure, with large windows and good ventilation. I'd better put it in my room. Chongqing is now in the rainy season, and it rains a lot of acid rain every day. )
3. The rose with successful rooting is cultured in a container with a height of 50 cm. Drain the water at the bottom of the container with cinder first, and then if there is more than 1/3 of base fertilizer and soil, it should be fattened. Then spread ordinary soil on the fertile soil to separate the roots of Chinese rose from the fertile soil. It is a mixture of cultivated soil and soil. Put the roses away carefully. Put it in a place with mild sunshine and wait for germination. When I was studying plants in middle school, I knew that the roots of plants would automatically look for water and fertilizer. The deeper the water and fertilizer, the deeper the roots of plants will grow and the more lush the plants will grow. So the fertilizer should be placed at the bottom, but it can't touch the roots. The new roots are tender and easily burned by fertilizer. And if the root feels that there is fertilizer on it, it will not develop further. The deeper the soil, the longer the water stays, the lower the temperature in summer and the warmer the winter. Only when the roots are deep, the plants will not fall down in the strong wind, dry up due to lack of water and overwinter safely. )
According to the local climate, you can choose the planting place. There are more acid rains in Chongqing in spring, which is not good for seedlings. How hot it is in summer! The new seedlings in the attic can't stand the high temperature of more than 40 degrees. I'm still going to plant the container on the balcony downstairs for the first year, and then move it to the attic when it's crisp in autumn.
In winter, roses can be stored in the cold room in winter, so that they are dormant and develop healthily in spring. Trim and clean the basin surface before entering the house, spray limewater to kill insects and prevent diseases, and freeze the basin soil before entering the house. It is safest to water in winter storage to prevent air drying, and the room temperature is about 0℃. When it is too cold, seal it tightly with soil. When the weather turns warm in early spring, open your mouth for ventilation to prevent the occurrence of yellow buds and affect normal development.
It can be planted in a warm room in winter. After pruning, freeze it outdoors for a period of time, then enter the room after 1 1, slowly thaw at low temperature, and then move it to the place around 10℃ to wait for germination. Then put it in a sunny place indoors, which requires more than 4 hours of direct light every day, and the temperature is about 20℃. A small amount of water will loosen the soil, and it can grow outdoors in the sun at noon on sunny days. When the new bud leaves and develops into branches, it can blossom around the Spring Festival with proper watering and fertilization.
This is also one of the ways to make roses have a good winter. When pruning branches, we should seize the opportunity. Generally speaking, it is best not to let plants have shoots in winter, because shoots can't resist the cold in winter.
Put the peels and leaves of melons and fruits into containers such as buckets, pots and jars, and seal the mouths with mud to turn them into humus soil, which can be used as flower fertilizer for topdressing. The miscellaneous flesh and blood, fish scales and eggshells on the dinner table at home are all good base fertilizers for potted flowers. If brewed and fermented, they will become phosphorus-rich flower fertilizers.
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