Phlox drummondii, phlox, native to North America.
Variety: 'Palona' dwarf varieties, suitable for small pot cultivation. The plant is round in shape, with strong branching ability and low spread, suitable for potted or flowerbed applications.
Plant height: 10-15 cm.
Sowing seedlings: Seeds are small, about 550-600 grains per gram. Can be broadcast live on the seedling tray, using light sowing media. After sowing, the soil is covered slightly, fine-grained vermiculite is often used to help keep it moist, and a fungicide is sprayed to prevent the seedlings from getting sick. The optimum germination temperature is 20-22 degrees, and the soil temperature has a great influence on the germination of seeds and should be controlled twice. Generally 7-14 days can emerge. Special attention should be paid to immature transplants. The time for planting seedlings varies from place to place. The northern region can be planted in early February and bloom after May. Summer needs a cool climate. In the middle and lower reaches of the Yangtze River and in the areas south of the Yangtze River, due to the summer heat, autumn sowing is often used. The seedlings are over 0 degrees above winter, so that they can bloom in the spring.
Transplantation / upper basin: Phlox seedlings are not tolerant to transplantation, so it is better not to be late, and try to keep the roots of the seedlings intact. Transplant basins are usually transplanted within 4 weeks after emergence. The 'Palena' variety should use small pots of about 10 cm, as well as well-drained, loosely permeable potting media.
Temperature regulation: When the seedlings emerge at a higher temperature, they can be at 22 degrees. In the initial stage of transplanting the pot, it is best to maintain 18 degrees. Once the roots are elongated, they can be reduced to about 15 degrees. This will take about 9-10 weeks to bloom. Maintaining a low temperature can form a good plant shape, and phlox can tolerate low temperatures around 0 degrees, but its growth period is relatively long.
Cultivation management: Phlox should grow under the conditions of sunlight and cool climate, so it does not need to use chlormeson to control plant shape. When environmental conditions are unsatisfactory, spraying 1-2 times of Chlorella can prevent leggy. Seed China reminds you that good spacing must be maintained during the cultivation process to prevent crowding and affect plant shape and produce pests and diseases. Plants are dwarf and their branches and leaves are covered with hairs. Therefore, watering and fertilizing should be avoided to contaminate the foliage to prevent the leaves from rotting. The entire period of growth and development is 10-14 weeks, which is related to the size of the pot, the light conditions, and the time of seedling raising.
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