How to plant the latest hydrangea seeds?

Hydrangea, also known as hydrangea, hydrangea grass, purple sun flower, etc., is a shrub plant belonging to hydrangea genus of Saxifraga family, native to Japan and Sichuan area of our country. It is widely cultivated in Europe, Holland, Germany and France. The flower type is plump, large and beautiful. Modern parks and scenic spots are planted in pieces to form landscapes. Let's take a look at how hydrangea seeds are planted.

How to plant hydrangea seeds?

Hydrangea flowers are mostly sterile flowers, few mature seeds, so usually using cuttings and branches of asexual propagation methods of cultivation. Hydrangea likes warm, moist and semi-shady environment. The optimum temperature for growth is 18~28℃. The temperature in winter is not lower than 5℃. The flower bud differentiation takes 6~8 weeks at 5~7℃. The temperature of 20℃ can promote flowering. The temperature of 16℃ after flowering can prolong the flowering period, but the high temperature makes the flowers fade quickly. Basin soil to keep moist, soil to loose, fertile and good drainage of sandy loam as well.

The reproduction method of hydrangea

1. Plant division: Hydrangea plant division should be carried out before germination in early spring. The rooted branches should be separated from the mother plant, potted directly, watered not too much, maintained in the semi-shade, and then transferred to normal maintenance after germination of new buds.

2, layering: Hydrangea layering propagation in bud germination, 30 days after growth, the next spring and mother plant cut, with soil transplantation, that year can bloom.

3, cuttage: hydrangea cuttage in the plum season, cut the top shoots, about 20 cm long, pick the lower leaves, cuttage temperature is 13~18℃, 15 days after the root.

Culture method of hydrangea

1, soil: Hydrangea to loose, fertile and good drainage sandy loam is good, but the change of soil pH makes Hydrangea color changes, in order to deepen the blue can be applied in the bud formation period aluminum sulfate, in order to maintain pink can be applied lime in the soil.

2, watering: Hydrangea pot soil to keep wet, but watering should not be too much, especially in the rainy season to pay attention to drainage, to prevent waterlogging caused by rotten roots. Winter indoor potted plants to a little dry as well. Too much moisture makes the leaves decay easily.

3, light: Hydrangea is a short-day plant, usually cultivated to avoid the sun, 60~70% shade is the most ideal. Appropriate shade can prolong the flowering period in summer when the light is too strong.

4, temperature: Hydrangea growth temperature is 18~28℃, winter temperature is not lower than 5℃. Flower bud differentiation needs 6~8 weeks at 5~7℃, 20℃ can promote flowering, maintain 16℃ after flowering, can prolong flowering period, pay attention to high temperature to make flowers fade quickly.

5, fertilization: hydrangea generally every 15 days or so should be applied once thin cake fertilizer water, in order to make the pot soil often maintain acidic reaction can be combined with the application of liquid fertilizer when adding 0.2% ferrous sulfate to make it become alum fertilizer water irrigation, bud stage increased application 1~2 times 0.5% calcium superphosphate soaking solution.

6, pruning: Hydrangea flower after flowering to pay attention to remove the flower stem, promote the production of new branches, proper pruning, can maintain the beautiful shape of the plant. In early spring, March should cut off diseased dead branches and delicate branches from the base, retain 3~5 strong main branches and cut them short, and leave 2~3 buds per branch.

7. Pests: Hydrangea mainly has wilt disease, powdery mildew and leaf spot disease, which is controlled by spraying 600 times solution of 65% zinc deberea wettable powder. Insect pests have aphids and bugs harm, available 40% omethoate EC 1500 times spray kill.

8, change the pot: hydrangea generally change the pot once a year, combined with the pot to cut off rotten roots, rotten roots and long roots. After the plants are moved into new pots, the soil should be compacted, watered, placed in shade for about 10 days, and then moved outdoors for normal management.