When will the latest cuckoo blossom?
Rhododendron is one of the rhododendrons, which is suitable for planting in a sunny and cool and humid environment. Rhododendrons are colorful when they bloom and are often used to construct natural landscapes. Some people like to use rhododendrons indoors to increase the indoor atmosphere, and they are also used for decoration in public places to play a festive role during festivals. Let's take a look at when cuckoos will bloom.
When does the cuckoo bloom?
The flowering time of rhododendron varies due to different climatic conditions in different places. generally speaking, rhododendron blossoms in summer and autumn, and some cuckoos raised by some friends sometimes bloom in November. In short, the flowering time of rhododendron varies according to climate, living environment and cultivation management. The flowers of rhododendron attract people's attention because of their unique shape and beautiful color. 2-3 flowers and new shoots come from the terminal bud, Corolla rose red to bright red, the upper petal has thick red spots, wheel-shaped, about 4.5-7 cm in diameter, stamens 5, medicine yellow, sepals small, ovate, light green, fine hairs.
Growth habits of rhododendron
Rhododendron is widely cultivated in all parts of China, and there are wild rhododendrons in Jiuling Mountain in the northwest of Jiangxi Province. Like a cool, moist and sunny environment. Cold-resistant, heat-resistant, semi-overcast, not resistant to long-term strong light exposure. The suitable temperature for growth is 1528 ℃, and it can withstand low temperature of-8 ℃ in winter. The soil should be acid sandy loam which is fertile, loose and well drained.
Culture methods of rhododendron
1. Basin soil: rhododendron likes acidic soil, which requires loose, good drainage and rich in humus. Take 4 parts of humus soil, 2 parts of old basin soil, 1 part of sandy soil, 1 part of burning soil and 1 part of sawdust, mix with proper amount of cake fertilizer and compost for half a month.
2. Potting up: when the cuckoo goes to the pot, the seedlings carry more soil and less damage to the roots, the overlong roots are shortened properly, and the larger plants should prune the upper branches. First, cover the drainage hole of the basin bottom with broken tiles in the flowerpot, spread a layer of coarse-grained soil as the drainage layer, fill part of the culture soil in the center, put the plant into the pot and add soil to compaction. The planting depth is the same as that of the original seedlings when they were unearthed and watered thoroughly.
3. Watering: cuckoos are afraid of both dryness and waterlogging. From the end of November to the middle and early February of the following year, most of the open-field potted rhododendrons are dormant or semi-dormant, and they are watered appropriately according to the dry and wet condition of the basin soil. The temperature rose in late February, the flower buds and leaf buds sprouted, and the watering times were increased appropriately. The peak period of new shoot growth is from March to June, and the water demand increases, so it is necessary to increase the watering times. The temperature is high from July to September and should be watered every day. After October, the amount of water can be reduced.
4. Fertilization: cuckoos do not like big fertilizer, so they should apply thin fertilizer frequently. Base fertilizer with long-acting fertilizer, such as cake fertilizer, bone meal and dry stable manure and other organic fertilizer, in the upper basin to change the basin or buried in the basin soil in winter. Quick-acting fertilizer for topdressing, such as human manure organic fertilizer or nitrogen, phosphorus and potassium fertilizer, the Beginning of Spring applied phosphorus and potassium fertilizer once or twice a month before flowering, and stopped applying fertilizer during flowering. After cooling in autumn, the liquid fertilizer based on phosphate fertilizer was applied twice, and the topdressing was stopped after winter.
5. Pruning: during the growing period, rhododendron must be pruned, withered branches and sprouting branches must be removed, which is beneficial to the balanced development of tree shape. The planting chooses the acidic soil with high dryness, sufficient sunshine and deep soil layer. Fertilizing once a year before and after flowering, cut off the overdense bore branches, truncate only long branches, cut off dead and diseased branches, to ensure that Maojuan can thrive.
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