Complete Collection of Zinnia Pictures and Introduction to Seed Sowing Methods

Growing Techniques Jan 1, 1970 0 views

[Zinnia]Zinnia Pictures | Zinnia Seed Sowing

❤ ❤`•.¸¸.•´´¯`•Houseplants, this article originates from [Decoration Information]

The zinnia stem is upright and sturdy, covered with short hairs, and the surface is rough. The leaves are opposite and sessile, with the leaf base clasping the stem. The flower diameter is 4~1Ocm, and large flowers reach 12~15cm. The flowers come in many colors, including white, green, yellow, pink, red, orange, and more. The tubular florets are concentrated in the center of the flower head in yellow-orange, with split edges. The flowering period is from June to September, and the fruit ripening period is from August to October. The thousand-grain weight of the seeds is 5.9g, and the lifespan is 3 years. In this issue, the editor shares zinnia pictures and its sowing methods.

  Zinnia - Growth Habits

  It likes warmth, is not cold-tolerant, fears intense summer heat, is robust, drought-tolerant, tolerant of poor soil, and avoids continuous cropping. The roots are deep and the stems are hard, making it resistant to lodging. It is suitable for growing in fertile, deep soil. The suitable temperature during the growing period is 15~30°C, and it is suitable for cultivation in the north. Dwarf varieties in hot regions should be planted in light shade. There are about 20 species in the same genus, such as small zinnia, fine-leaved zinnia, and others. It likes a warm climate, is not cold-tolerant, likes sunlight, is drought-tolerant, and tolerates poor soil. The suitable temperature for growth is 15-30°C, and it is suitable for planting in the north.

  Zinnia - Medicinal Value

  The whole plant of zinnia can be used as medicine, with the effects of clearing heat, draining dampness, and detoxifying. It can also be used to treat damp-heat dysentery, breast abscess, and boils. For internal use: decoct in water, 15-30g. For external use: apply as appropriate, pound fresh material and apply.

  Zinnia - Flower Language

  Zinnia (magenta) lasting love
  Zinnia (mixed colors) commemorating an absent friend
  Zinnia (purplish red) everlasting and unchanging
  Zinnia (white) kindness
  Zinnia (yellow) daily greetings

  Zinnia - Seed Sowing

  1. During the sowing process, zinnia requires a well-drained, loose, and fertile soil environment. The usual germination temperature is 21-22 degrees, and the seeds need to be covered with soil during germination. They can germinate in 2-5 days. During the growth process, the daytime temperature should be maintained at 18 degrees, and the nighttime temperature should reach 21 degrees. From sowing to flowering, the time required is generally 9-10 weeks. In addition, it is worth noting that zinnia avoids continuous cropping, so crop rotation should be carried out in a timely manner.
  2. Because zinnia tends to grow leggy in the later stages of growth, growers usually take measures to control it: first, appropriately lower the temperature and increase ventilation; second, ensure sufficient nutritional area and increase the spacing between plants and rows; third, timely pinching to promote axillary bud growth. To make the plant short and still flower, a dwarfing agent is often sprayed when the axillary buds grow to about 3 cm after pinching. If the goal is to limit its growth height, pinching should also be carried out.

  3. Zinnia has strong growth vigor and likes a warm, dry, and sunny environment. The suitable growth temperature is 20-25°C, and it is not tolerant of intense summer heat. When the temperature is higher than 35°C, growth is noticeably weakened, flowering is sparse, and the flowers are also smaller. Under short-day conditions, the ray florets become smaller and the tubular florets increase. It is best to choose deep, well-drained fertile soil for growth.
  4. Zinnia is mainly propagated by seeds, and can also be propagated by cuttings. Seed propagation is suitable for spring sowing, generally carried out in mid-to-late April. Its seeds are photophobic, so after sowing they should be covered with soil, watered, and kept moist. The germination rate is generally around 60%. Cut a 10-15 cm long soft branch, remove the lower leaves, keep the two upper leaves, insert it into the soil, spray water frequently, provide appropriate shade, and after about 2 weeks it will take root and sprout.

Conclusion:The flower language of zinnia is missing friends far away, enduring as heaven and earth. Zinnia has a very long flowering period, with flowers opening one after another and blooming beautifully for a long time, also symbolizing friendship that lasts as long as heaven and earth. The colors of zinnia flowers are very rich, and as a potted plant for appreciation, its ornamental value is very high. Each flower grows taller than the last, which inspires people's motivation to make progress.

How to Plant Zinnia Seeds - Zinnia Seed Sowing Methods

Zinnia generally refers to Zinnia elegans, an annual herbaceous plant of the genus Zinnia in the Asteraceae family, native to Mexico. It has single-petaled, double-petaled, curled-leaf, wrinkled-leaf, and various differently colored horticultural varieties. It is widely cultivated throughout our country and sometimes becomes wild. It can be used in flower beds, flower borders, and flower strips according to height, and is also often used as a potted plant. Now let us take a look at how to plant zinnia seeds!

Seed Selection

The seeds of zinnia have a lifespan of 3 years and a germination rate of about 60%. Try to choose plump seeds from the previous year to increase the seed germination rate. Zinnia seed collection should be carried out when the outer ring of petals begins to dry up and the middle ring of petals begins to lose color. Cut off the flower heads, dry them in the sun, remove impurities, and store them.

Disinfection Treatment

Before sowing zinnia, the soil and seeds must undergo strict disinfection treatment to prevent pests and diseases during the growing period. For seed disinfection, soak the seeds in a 1% potassium permanganate solution for 30 minutes. The substrate is mixed with 2 parts leaf mold, 1 part river sand, 2 parts peat, and 2 parts perlite. It can be disinfected with 0.05% potassium permanganate or 1000 times formaldehyde. The soil can be treated by high-temperature fumigation to kill pathogens, pests, and weed seeds in it.

Sowing Time

The sowing time of zinnia depends on the desired flowering time. Generally, sow in a greenhouse 2-3 months in advance. Direct sowing in the open field should be after the severe cold of early spring, otherwise the seedlings will develop poorly. If used for autumn flower beds, it is best to sow in summer. Spring sowing is carried out in March-April, transplanting when there are 4-5 leaves, planting out in early June, and flowering from July to frost.

Sowing Methods

Zinnia seeds can be sown in holes or broadcast. Because it is a photophobic flower seed, after sowing it must be covered with a layer of vermiculite. At a temperature of 21-23°C, it can germinate in 3-5 days. Light is not needed during the germination period. After germination, the seedbed should maintain a water content of 50-60%, and it should not be too wet, so as to avoid root rot or damping-off disease.

Seedling Management

After the zinnia seedlings grow 1 true leaf, divide and transplant them once. The zinnia root system is not well developed and has fewer lateral roots. Generally, when there are 2 true leaves, transplant and plant them into pots. When transplanting, they should be moved with soil. The transplanting substrate should be loose, fertile, and well-drained. It can be prepared with 3 parts pond mud, 1 part leaf mold, and 1 part decomposed compost and barnyard manure. The planting depth should be 0.5 cm below the cotyledons. After planting, press the soil lightly and water thoroughly.