A Detailed Introduction to the Latest Propagation Methods for Zinnia

Zinnia is a relatively common flowering plant in our country, very suitable for pot cultivation at home. It is welcomed by many people, and zinnia is also an important traditional Chinese medicinal herb with many beneficial effects. Its planting area in our country is now also very large. So when we grow zinnia, how should we propagate it? Today, the editor brings you the propagation methods for zinnia. Let's take a look below!

I. Seed Propagation

1. Pre-sowing Treatment

Before carrying out seed propagation, we must disinfect both the zinnia seeds and the planting soil. This ensures that zinnia can grow normally in the middle and later stages. For seed disinfection, potassium permanganate and other agents can be used for soaking, generally for about half an hour. Then use leaf mold, river sand, peat and perlite and other materials to prepare the sowing substrate, keeping the ratio at 2:1:2:2. At the same time, potassium permanganate or formaldehyde should also be used for disinfection. If sowing in soil, high-temperature fumigation can be carried out to kill the pathogens and pests in the soil.

2. Sowing Method

Zinnia seeds remain viable for a relatively long time, generally around three years, and the germination rate can reach 60%. However, it is best to choose plump seeds from within one year, which can effectively improve the seed germination rate. The sowing method can be mainly dibbling or broadcasting, and after sowing, a layer of fine soil must be covered and watering carried out. Under normal management, roots and sprouts generally appear after about a week. When sowing, we should adjust the sowing time according to our expected flowering time. The time from sowing to flowering for zinnia seeds is about 80 days.

3. Post-sowing Management

Zinnia is a light-shy plant, so after sowing, be careful to cover it with a layer of vermiculite. At a temperature of around 22 degrees, it will germinate in about 4 days. During the seed germination stage, basically no light is needed, and the humidity of the seedbed should be maintained at around 55%, not too wet. Avoid phenomena such as root rot and damping-off. Then, when the seedlings have grown about two true leaves and reached a height of about 6-7cm, transplant them. Finally, note that zinnia only needs shading during the seedling stage, and in all other periods it should be provided with sufficient light.

II. Cutting Propagation

In addition to seed propagation, zinnia can also be propagated by cuttings. The time for zinnia cutting propagation is generally around spring each year, and the cuttings are mainly zinnia side shoots, with a length kept at about 10cm. Directly insert the side shoots into the cutting soil, then press and fix the cuttings in place. Water appropriately to keep the soil moist, and after about 10 days of cutting, the side shoots will take root. After about one month or one and a half months, they can be transplanted into pots. However, because the uniformity of cutting seedlings is not as good as that of seed seedlings, cutting propagation is generally not used for large-scale propagation.

The above is a brief introduction to zinnia propagation methods. That is all for today's introduction. This article is for reference only. Friends who want to learn more related information, please continue to follow us!