First, the growth habits of hollyhock.
1, Abelmoschus manihot is widely distributed in China, East China, Central China, North China and South China, and is cultivated all over the world.
2. Like sunny days, tolerant to semi-shade, but avoid waterlogging, strong salt and alkali tolerance. I can still grow in the soil containing 0.6% salt, I can also resist cold, and I can safely overwinter in the open field in North China.
3. It grows well in loose and fertile sandy soil with good drainage and rich organic matter.
Second, how to plant hollyhock seeds
1, hollyhock can be sown in spring and autumn. According to the number of seeds of hollyhock, you can sow them in the seedbed in the open field and then transplant them, or you can sow them directly in the open field without transplanting.
2. Autumn sowing is mostly used in the south, and it is usually appropriate to sow in the open seedbed in September, and the germination is neat, while spring sowing is often the main method in the north.
3. The seeds of Abelmoschus manihot can be sown when they are mature. Under normal circumstances, seeds can germinate in about 7 days.
4. The germination ability of Abelmoschus manihot seeds can last for 4 years, but the growth of seedlings will decrease after 2-3 years of sowing.
5, live broadcast in the open field, if properly combined with transplanting in rainy days, it can not only disperse seedlings, but also plant flowers for many years at a time.
Third, the planting method of hollyhock
1, water
(1) When the seedlings of Abelmoschus manihot grow 2-3 true leaves, they should be transplanted 1 time and the row spacing should be increased. Water it in time after transplanting.
(2) Proper watering during flowering period can promote long flowering period and good flowering until the shoot tip.
Step 2 apply fertilizer
(1) Pay attention to fertilization, weeding and loosening soil during the seedling growth period to make the plants grow and bear fruit.
(2) After flower buds are formed in the axils of leaves, phosphorus and potassium fertilizers should be added, and a few leaves should be slightly cut at the base.
Step 3 cut the roots
When cultivating hollyhock, in order to make the plant low and prevent lodging, the roots can be cut off around the plant with cones in June, once every 2-3 weeks, and then watered immediately.
Step 4 harvest
(1) Harvest the fruit of Abelmoschus manihot immediately when it turns yellow, so as to avoid the seeds from scattering. After the flowering period, the overground part of the plant can be cut off, and when new buds germinate, clustered plants can be formed.
(2) Abelmoschus manihot is easy to age, and should be renewed after 2-3 years of cultivation.