When is the best time to sow dahlia?
Dahlia is an ornamental flower with a great many varieties, and it is grown by a great many people, so when should dahlia be sown? What are the main varieties? Let's take a look!
1. Basic introduction to dahlia
The scientific name of dahlia is dahlia (Dahlia pinnata), also called dahlia, Tianzhu peony, Oriental chrysanthemum, sweet potato flower, etc. It is a perennial herbaceous plant of the Asteraceae family and the genus Dahlia.
Dahlia is one of the species with the most flower varieties in the world, and there are currently more than 30,000 varieties.
Dahlia prefers partial shade; too strong sunlight affects flowering. The light duration is generally 10-12 hours, and direct sunlight should be avoided when cultivating seedlings.
Dahlia is not tolerant of drought or waterlogging. Generally, for potted plants, when the soil is dry, water thoroughly, following the principle of wet-dry alternation; on rainy days, the pot can be tipped to drain water (for ground planting, frequent watering is not necessary).
Dahlia is suitable for cultivation in loose, well-drained, fertile sandy soil.
Dahlia likes a cool climate. It blooms largest, most brilliantly and most abundantly in late September, but it is not tolerant of frost; after frost, the stems and leaves immediately wither. During the growing period, it is not strict about temperature and can grow at 8-35°C, with 15-25°C being suitable.
2. When should dahlia be sown?
Dahlia is generally sown in spring, and the suitable sowing temperature is 10-25°C. In fact, dahlia has no fixed sowing time; as long as the temperature is suitable, it can be sown at any time.
3. What are the main varieties of dahlia?
1. Shouguang: The flower color is bright pink, the ends of the petals are white, the flowers are brilliant, the flower diameter is 12 cm, and the plant height is 110 cm. It is a cut flower variety for summer and autumn.
2. Liren: The flower is purplish red, the tips of the petals are white, and the flower diameter is 10 cm. The plant height is 100 cm, and it is strongly upright. It is a small cut flower variety.
3. Hongzan: The flower is pink, the petals are rounded, rose-shaped, and the flower diameter is 12 cm. The plant is compact and well-proportioned, very beautiful.
4. Xinhuang: The flower is bright yellow, the tips of the petals are white, and there are many flowers. The plant height is 90 cm.
5. Hongfei: The flower is dark red, the leaves are upright, there are many branches, and it is easy to cultivate.
When growing dahlia, in addition to sowing, dahlia can also be propagated by division of roots and cuttings.