When is the Best Month to Sow Cornflower Seeds
A bit of knowledge to share with you about the best month for sowing cornflower seeds and the planting methods and timing for green plant and flower cultivation. Detailed content will be shared next.
Cornflowers are best sown in autumn. The blooming period of cornflowers is from February to August, and they can bloom the following spring. Spring is also suitable for sowing, as seeds sown in spring can produce flowers in the same year. Cornflowers are herbaceous plants of the aster family, with a variety of species, very beautiful, and common flower colors include blue, pink, and purple. They can be used as cut flowers and are more suitable for potting or ornamental plants in gardens. Let's talk in detail about the reasons why spring and autumn are suitable for sowing cornflower seeds and the precautions for sowing.
I. Spring
Spring is suitable for sowing cornflowers, with the sowing time best in mid-spring. In the south, it is advisable to sow from mid-March to early April, while in the north, sowing can be done from March to May. This is because early spring sowing requires keeping warm, and attention should be paid to moisture retention due to the high evaporation rate in early spring. Also, since cornflowers are not heat-tolerant, late spring sowing may have temperatures too high, which is not conducive to seed germination and seedling growth.
Generally, sowing in April to May can lead to flowering from July to August. Early spring sowing in February in a greenhouse can result in flowering by May.
II. Autumn
Autumn sowing allows for the fastest seed germination. Autumn sowing is better than spring sowing, as new plants from autumn sowing grow stronger and flower faster and more. An environment of 0 to 10°C can have a vernalizing effect on the seeds, promoting seed germination and flower bud growth. Moreover, since cornflowers are relatively cold-tolerant, they grow best in cool environments, and autumn sowing can lead to flowering the following spring.
Sowing can start after the autumn equinox, usually in August or September, and the seeds can germinate the following early spring, flowering from April to August.
III. Sowing Precautions
Select plump seeds and use seed germination techniques before sowing to improve germination rate and accelerate germination time. The soil for sowing should be kept moist, and after sowing, ensure the environmental temperature is between 18 to 25°C. Generally, seeds can germinate in 10 to 13 days.
Cornflowers are annual or biennial plants that can survive outdoors in winter in our country, but the plants will not wither. Therefore, after autumn sowing, it is best to move the pots to a sunny indoor location for maintenance during winter.
The above is the complete content on the best month for sowing cornflower seeds and the planting methods and timing. Green plant enthusiasts might consider referring to this information.