When do hibiscus flowers bloom after sowing in summer? Detailed explanation of the sowing method for hibiscus in summer.

When Do Althaea Bloom After Sowing in Summer

This article introduces when althaea blooms after sowing in summer and detailed experience in green plant maintenance for summer sowing methods. Next, our site's editor will introduce to you.

Althaea is native to Sichuan Province, China, also known as a丈red, chessboard flower, big althaea, and Weizu hollyhock. Althaea seeds are usually planted in spring and autumn, and the plants sown in summer bloom in the following year's flowering period. Althaea is a biennial herbaceous plant, with a flowering period from June to August, and a single flowering can last for 3 months. Below, we will specifically introduce how long it takes for althaea to bloom after sowing in summer and the sowing methods.

Ⅰ. Blooming Time After Summer Sowing

Althaea seeds mature in August or September and remain viable for 4 years after harvest. The germination temperature for althaea seeds is between 15 to 30°C, and under suitable weather conditions, they can germinate about a week after sowing. Seeds sown in summer are from previous harvests and cannot bloom in the same year. Seeds sown in early summer can grow vigorously in a temperature range of 25 to 30°C but cannot bloom in autumn. They will bloom in June of the following year.

Ⅱ. Althaea Sowing Methods

1. Sowing Time

In southern regions, sowing is mainly done in autumn, while in the North China and further north regions, sowing is usually done in spring. Althaea sown in spring in the North China region can bloom by summer. However, in the Northeast, if you want to bloom in summer, you need to start with indoor or outdoor membrane-covered seedling raising before transplanting. In southern regions, althaea 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 the seeds swell, after which they are taken out, disinfected, and then dried in a cool, well-ventilated place.

3. Soil Selection

Suitable 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

Althaea is cold-resistant and can be grown through indoor sowing or direct sowing in the field. During sowing, place the seeds in small pits and cover them with a thin layer of fertile fine soil. For spring field sowing, a layer of plastic film should be covered, with small holes poked in the film to maintain a suitable temperature.

5. Post-Sowing Maintenance

After sowing, ensure plenty of direct sunlight and keep the soil moist. Generally, seeds can germinate within 7 to 15 days, and after the seedlings grow 3 to 5 true leaves, they can be transplanted and planted.

The above information provides you with an introduction to when althaea blooms after sowing in summer and detailed explanations of the summer sowing methods. We hope it brings a bit of help to your life!