1, the seeds of delphinium can be sown in spring and autumn.
The seeds of delphinium can be sown in spring and autumn, with April and May in spring and August and September in autumn. The climate in these two periods is warm and suitable, and the sunshine is sufficient, which is very suitable for seed germination and beneficial to its growth. Delphinium does not have high requirements on soil, but it is best to plant it in fertile, moist and well-drained acid soil, and it is not suitable to grow in low-lying soil which is easy to accumulate water, and it is easy to rot roots or die.
2. Choose high-quality seeds for sowing.
Planting delphinium also needs to choose high-quality seeds for sowing. The seed quality can directly determine the germination rate. If there is a problem with the seeds, the budding effect will be poor, which will lead to poor flower growth and greatly affect flowering. Therefore, when buying delphinium seeds, we should choose those mature and complete high-quality seeds, preferably new seeds recently picked, which can effectively improve the germination rate.