Freesia cultivation methods and precautions

soil

Freesia prefers loose, water-retaining and well-drained sandy soil. Before planting, disinfect the soil and prepare a solution of pentachloronitrobenzene, methyl bromide and enantiomer for watering. After disinfection, leave it for 5 to 7 days before use.

Bulb pretreatment

Before planting, the bulbs should be treated as follows: disinfection.

Soak the bulbs in 800 times dilution of thiophanate-methyl or carbendazim solution for 1 to 2 hours, remove them and dry them in a cool place.

Place the bulbs in a relatively warm environment to promote the growth of rhizomes and break their dormancy period. After the roots grow 2 to 3 cm, they can be transplanted.

Fertilizer

Keep the soil moist after transplanting until germination. After buds appear, gradually increase or decrease the amount of watering, try to keep the soil dry, lower the air humidity, and reduce diseases and pests.

From planting to flowering, the basal fertilizer in the soil can basically meet the growth of the plants, but if the plants are weak, top dressing should be applied once when they grow 2 to 4 leaves, mainly with ammonium nitrate, urea and potassium sulfate. Do not apply fertilizer when buds appear, so as not to cause the leaves to grow too long and affect flowering. When flowering, apply potassium dihydrogen phosphate as foliar fertilizer to promote flowering.

temperature

Usually 6 weeks after planting, the inflorescence will gradually differentiate. When the plant grows 4 leaves, maintain the temperature at around 13~14℃ to promote leaf growth. During the flower bud differentiation period, the temperature should be controlled at 10~25℃. After buds appear, the temperature should be appropriately increased within this range to promote flowering. Lowering the temperature to 15℃ after flowering can extend the flowering period.

illumination

When the first leaf grows, provide appropriate shade to lower the soil temperature and promote root development.

When the plant grows 4 to 6 leaves (flower bud differentiation), ensure 10 hours of sunshine, which is conducive to the differentiation of flower buds.

After flower bud differentiation, extend the lighting time appropriately to promote inflorescence development and early flowering. Avoid direct sunlight during this period. If the light is too strong or the temperature is high, block out 30% of the light.

Pull Net

The branches of freesia are soft and the inflorescences grow in a curved shape. When there are more flowers, the branches droop and fall over. Therefore, when the plant grows 3 to 4 leaves, you can pull the net. Set up the first layer of netting about 25 cm from the ground, and then set up 2 to 3 layers of netting as the plant grows. The specifications of the net are 10cm×10cm or 10cm×15cm.