Is gladiolus easy to grow? A full breakdown of the key planting techniques

Gladiolus is a common cut flower variety, but it can also be grown in pots, planted in gardens, and more. It has a wide range of uses and is very popular in daily life. Below are the key techniques for growing gladiolus, so all you flower lovers out there can learn a thing or two.

1. Growth habits of gladiolus

Gladiolus is a herbaceous plant with a bulbous root. Its flowering period can last about three months. Gladiolus likes a warm, humid growing environment and cannot grow in overly cold conditions. The most suitable temperature for gladiolus growth is around 20 degrees; too high a temperature will also cause poor growth. It likes sandy soil rich in nutrients, and it likes light; long hours of light help gladiolus bloom.

2. Care tips for getting gladiolus to bloom

(1) Light. Gladiolus likes long hours of light and is a fairly typical long-day plant. Before the flowering period, 14 hours of light per day is very helpful for gladiolus to form flower spikes and grow buds, bringing it into the flowering period earlier.

(2) Temperature. Gladiolus likes a warm environment, ideally around 20 degrees; this temperature helps gladiolus form buds. Gladiolus enters dormancy in winter, so temperature regulation can be used to bring gladiolus into its growth period earlier, which helps it bloom earlier. Gladiolus flowers are very beautiful; pay attention to the following planting tips and you can grow gladiolus too.

(3) Fertilizing. Gladiolus likes fertilizer, especially phosphorus fertilizer, which can promote flowering and improve the quality of gladiolus flowers. Normally, you can apply organic fertilizer to gladiolus once every ten days or so; make sure it is fully decomposed organic fertilizer and dilute it, otherwise it can easily burn the roots. Also, apply some phosphorus and potassium fertilizer before the gladiolus flowering period to promote bud formation.

3. Pest and disease control for gladiolus

Because the root of gladiolus is a corm, it is prone to mold, such as dry rot, leaf spot, wilt, and scab. The main feature of these diseases is that the corm is attacked, causing the plant to die. Disease control is mainly preventive: keep gladiolus well ventilated, make sure the soil does not become waterlogged, disinfect promptly, and avoid mold problems. If disease appears, deal with it promptly; first disinfect the flower soil and corms, promptly remove diseased corms and leaves, and spray the relevant chemicals.

When growing gladiolus, if you want it to bloom, you need to properly control light, temperature, fertilizing, and so on. Such a beautiful flower, so why not plant it right away?

How to grow gladiolus, gladiolus pictures

Gladiolus, whose scientific name is Gladiolus gandavensis, is not an orchid. It is a bulbous plant in the iris family. The gladiolus plant is 80-170 cm tall, with green leaves arranged alternately in two rows, and a flattened round or oval corm with ring-shaped nodes. How do you grow gladiolus? Let's take a look together below.

Gladiolus is a typical long-day plant. It likes plenty of sunshine, fertile soil, and cool climatic conditions. It is not cold-tolerant and fears intense heat; a climate with warm winters and cool summers suits it best. It requires fertile, loose, moist, well-drained soil. The critical low temperature for growth is 3°C; at 4°C-5°C the corm can begin to sprout and grow. The suitable growing temperature is 20°C-25°C during the day and 10°C-15°C at night. Generally, corms can sprout at 5°C, and the best temperature for growth and development is 20-25°C during the day and 15°C at night. As long as an area has 4-5 months a year suitable for growth, it can be cultivated.

In China it is usually grown as a spring-planted bulb crop, blooming in summer and dormant in winter, with the dormant period generally lasting 30-90 days. Gladiolus likes deep, fertile, well-drained sandy loam, and is not suitable for growing in heavy clay soil or low-lying waterlogged spots. The ideal soil pH is 5.6-6.5, and it requires plenty of sunshine.

Cultivation and propagation

Gladiolus is a perennial bulbous plant. Its planting corm is flattened and spherical, covered with a brown outer skin, and in the past it was mostly supplied by imports. Some research units in the north succeeded through seed-saving trials and can now self-propagate for their own use, though the quality of the flowers in season is still not quite ideal. Observations show that gladiolus is a typical long-day plant and requires more than 10 hours of long-day conditions each day before flowering in order to shift from vegetative growth to reproductive growth. Nowadays, cut flower production is mostly practiced in various places, requiring deep, fertile soil with easy drainage and irrigation, and raised beds for sowing.

In production, planting corms is the main method. In spring, grade the corms by size and soak them for 30 minutes in a 800x dilution of 70% thiophanate-methyl powder or a mixture of 1000x carbendazim solution and 1500x captan solution, then sprout them at 20-25°C, and they can be planted in about 1 week. For varieties seriously infected by viruses and obviously degenerated, shoot-tip virus elimination can be used to rejuvenate the plants.

Conventional gladiolus cultivation refers to cultivation under natural conditions

, generally choosing planting corms with a diameter of more than 2.5 cm. Planting methods include ridge planting and bed planting, with a planting depth of 5-10 cm. When gladiolus puts out its second leaf, this is exactly the time of flower bud differentiation, and it is especially sensitive to environmental factors; if it encounters low temperature and weak light, the number of "blind flowers" increases. Generally, when preparing the soil, apply 6-9 kg of nitrogen, 6-12 kg of phosphorus, and 7-12 kg of potassium per mu. The whole growing season requires topdressing 3 times, namely when 2-3 leaves have emerged, when the flower spike emerges from the leaves, and 15 days after flowering.

Forcing cultivation of gladiolus

The corm dormancy must first be broken. After the corms are harvested, under natural conditions, from late autumn to early winter, they must go through the influence of low temperature before dormancy is broken. For forcing cultivation, dormancy must be broken artificially: after the corms are harvested, first treat them at a high temperature of 35°C for 15-20 days, then treat them at a low temperature of 2-3°C for 20 days, and then plant them, after which they will sprout and grow normally. If flowers are required for January-February, plant in October-November; if planted in December, they will bloom in March-May. That is, from planting to flowering takes 100-120 days. The row spacing for forcing cultivation is 15 cm x 15 cm or 25 cm x 7 cm, planting 40-60 corms per square meter. After planting, the daytime temperature should be kept at 20-25°C and the nighttime temperature at around 15°C.

Delayed cultivation can also be used

After the corms are harvested, store them in a dry cold storage at 3-5°C, then plant them again in a greenhouse in July-August of the following year; the management work is the same as for forcing cultivation.

Pest prevention for gladiolus

Corm diseases of gladiolus are relatively serious, so corm disinfection is an important measure. The method is:   remove the corm skin, soak in clean water for 15 minutes, then soak in 80x formalin solution for 30 minutes or 0.2% amobam for 10 minutes, then rinse with clean water before planting. In summer, with high temperature and humidity, it is prone to damping-off. Besides spraying 1000x thiophanate solution or, combined with irrigation, applying 10 grams of zineb per square meter for control, you should also be careful to avoid drooping flowers. If nematode damage is found, the corms should be dug up and burned, and in addition to soil disinfection, crop rotation must also be carried out. The main pest is the two-lined slug, which can be killed by spraying lime water or ammonia water; scatter lime powder around the garden to stop them from entering; and handpick and kill them.

The above is the introduction to gladiolus brought to you by the editor. We hope it can help you. For more information related to gladiolus, please continue to follow Tubatu Learning Decoration.

[Gladiolus flower language] What does giving gladiolus represent? How much does a bouquet of gladiolus cost?

Gladiolus is also called Gladiolus gandavensis, and is also known as "Shisan Taibao". Its flower language is attentiveness, longevity, fortune, health and peace, and steadfastness. The gladiolus flower represents tenderness and attentiveness; the tenderness is mainly shown in the appearance of gladiolus, as the delicate flowers are protected by the heavy outer stems, thus expressing its tenderness. Gladiolus comes in many different colors, and its colors are very beautiful, making it a very good home decoration plant. Golden leaf origin

Gladiolus flower language? Gladiolus pictures

Gladiolus flower language meaning 3: Tryst, attentiveness. Its flower language is tryst. The tender flower, protected by the thick stem and quietly blooming on the stem, probably brings to mind a woman with her coat collar turned up, half hiding her face! So many people tie it into a bouquet and give it to the other person as a secret signal for a tryst! Although a tryst can raise the heat of romance, one must not lose calm. Therefore, another flower language of gladiolus is attentiveness!

Gladiolus flower language? Gladiolus pictures

Crimson gladiolus is a relatively common gladiolus variety. Its flower shape is crimson, its leaves and stems are green, and its plant height is more than 90 cm. Its corm is relatively large, with a cylindrical rhizome. Each plant produces about 7 or more flowers, the flowers are bell-shaped, and the petals have white spots.

Gladiolus flower language? Gladiolus pictures

Primrose gladiolus is a relatively short variety among gladiolus types, with a plant height of about 20 cm, each plant bearing about 3-5 flowers, and the color is purple.

Gladiolus flower language? Gladiolus pictures

The suitable growing temperature for gladiolus is spring, around 20 degrees. The corm sprouts at 4°C and grows best at 20-25°C. In any area with a growing period of 4-5 months a year, it can be planted in the open field. When the temperature is above 27°C, growth is hindered and the petals are easily scorched; below 10°C, growth is slow.

Gladiolus flower language? Gladiolus pictures

Gladiolus is not shade-tolerant and is a long-day plant. The most suitable condition is 16 hours of light per day. Cut flower varieties are greatly affected by light; sufficient sunshine makes them grow robustly with strong stress resistance, and the flower colors are vivid and long-lasting. But in hot summer, strong direct sunlight should also be avoided, otherwise the gladiolus leaves will get scorch marks from the sun.

Gladiolus likes fertile, deep sandy soil and requires good drainage. Well-drained sandy slope soil is most suitable, with a pH of 5.6-6.5 being ideal. It should not be planted in heavy clay soil or places prone to waterlogging.

Gladiolus flower language? Gladiolus pictures