How long does the flowering period of hollyhocks last?
This article introduces the duration of the hollyhock flowering period and other knowledge about the flowering time of hollyhocks, as follows:
Hollyhocks are native to Sichuan Province, China, also known as Shangzhanghong, Qipan Hua, Da Shuji, and Weizu Kui. Hollyhock seeds are usually planted in spring and autumn, with the plants from seeds sown in summer flowering the following year. Hollyhocks are biennial herbaceous plants, with a flowering period from June to August, and each flowering can last for 3 months. Below is a detailed introduction to how long it takes for hollyhocks to bloom after summer sowing and the sowing method.
I. Bloom Time After Summer Sowing
Hollyhock seeds mature in August or September and remain viable for germination within 4 years after harvest. The germination temperature for hollyhock seeds is between 15 and 30°C, and they can germinate in about a week under suitable weather conditions. Seeds sown in summer are from the previous year's harvest and will not bloom in the same year. Those sown in early summer can grow vigorously in temperatures of 25 to 30°C but will not bloom in autumn; they will bloom in June of the following year.
II. Hollyhock Sowing Method
1. Sowing Time
In southern regions, sowing is mainly done in autumn, while in the north of Hebei and further north, it is usually done in spring. In the Hebei region, spring sowing results in flowering by summer. However, in the northeast, if you want to bloom in summer, you need to start with indoor or outdoor seedlings under film before transplanting. In southern regions, hollyhock seeds can be sown in the same year they mature.
2. Seed Germination
After harvesting, the seeds should be cleaned in clear water to remove impurities, then soaked in warm water until they swell, after which they are disinfected and placed in a cool, well-ventilated area to dry.
3. Soil Selection
The suitable soil for sowing is fertile, deep, and well-draining sandy soil, which can be mixed with decomposed leaf soil and peat soil, and a base fertilizer should be applied.
4. Sowing Process
Hollyhocks can endure cold and can be grown indoors or outdoors. When sowing, place the seeds in small holes and cover them with a thin layer of fertile fine soil. For outdoor sowing in spring, a layer of plastic film should be covered, with small holes poked in the film to maintain a suitable temperature.
5. Post-Sowing Care
After sowing, ensure ample direct sunlight and keep the soil moist. Generally, germination occurs within 7 to 15 days, and after the seedlings have grown 3 to 5 true leaves, they can be transplanted.
The above shares the duration of the hollyhock flowering period and a comprehensive introduction to the flowering time of hollyhocks, hoping to bring some related knowledge about green plants to greenery enthusiasts.