Timely supplement magnesium

Palmetto is easy to grow, but the demand for magnesium is much higher than many other foliage plants. When magnesium supply is insufficient, the edge of the old leaves of white palm will turn yellow

The grower shall supplement the plant with magnesium by applying liquid fertilizer or solid fertilizer, or spray the plant with magnesium sulfate, magnesium nitrate or magnesium chelate regularly. 　

Master the appropriate light level

<

Palmetto is a shade tolerant plant. Generally speaking, the degree of shade required for planting palmetto is at least 73%. In summer, 80% shade will be better

However, we can't put the white palm in the shade for a long time. If the light level is too low, the color of the white palm leaves will fade and the growth will be blocked. 　

Control moisture

White palm likes wet environment. The substrate should always be kept wet. You can't wait until the substrate is completely dry before watering. The optimum relative humidity for the growth of Anthurium andraeanum is 75% ~ 85%. Sprinkling water on the leaf surface with a thin eye sprayer and sprinkling water on the ground around the plant to keep the air moist and beneficial to its growth and development. p>

The climate is dry and the air humidity is low. The new leaves will become smaller and yellow, and wither and fall off in severe cases

If the humidity at night is greater than 80%, the greenhouse temperature must be increased by 1 ℃ ~ 2 ℃ one hour before sunrise in the morning and continue until two hours after sunrise to avoid infection with bacteria. 　

Controlling root rot is key

If the plant is infected with root rot, its root system will turn black and cause the old leaves to wither and wither. In serious cases, it will lead to plant death

At present, there is no white palm variety with good resistance to root rot in the market, so the best way is to focus on prevention. Spraying fungicides can prevent root rot, but can not cure the disease

Artificial induction of flowering by spraying gibberellic acid

The flowering time of different varieties is also different. Generally speaking, small varieties respond quickly to gibberellic acid. They can bloom in 7 to 9 weeks after spraying, 10 to 11 weeks for medium varieties and 12 to 13 weeks for large varieties

It should be noted that high concentration of gibberellic acid will cause plant flower deformation

The container shall be appropriate

The container of appropriate size should be selected according to the variety when planting white palm. Some small varieties are suitable for planting in 4-inch containers, while some large varieties are suitable for planting in 21 inch containers. Growers should choose according to the actual situation