What plants and flowers are not suitable for ferrous sulfate (the effects and hazards of ferrous sulfate)

The pros and cons of watering flowers with ferrous sulfate

1. Function

Ferrous sulfate has two main functions in home flower cultivation: improving soil pH and lowering soil pH to make it more suitable for flower growth . In addition, watering with ferrous sulfate can supplement iron and prevent the leaves of flowers from turning yellow, falling off, and withering .

2. Hazards of improper use

Improper use of ferrous sulfate for watering flowers will cause black spots on the surface of the plant's leaves. In severe cases, it will accelerate the yellowing of the plant's leaves and cause more and more leaves to fall.

In addition, if too much ferrous sulfate is used, the iron nutrition will be excessive, which will cause large-scale leaf fall and the roots will be too acidic, causing wilting.

Which flowers are not suitable for ferrous sulfate

Rose

In life, many flowers are suitable for watering with ferrous sulfate, which can make the flowers bloom more brightly and beautifully. However, you cannot water roses with ferrous sulfate, because roses like to grow in alkaline soil. Ferrous sulfate will increase the acidity of the soil, which is not conducive to the growth of roses.

clove

Lilac belongs to the genus Syzygium of the Myrtaceae family. It also likes to grow in alkaline soil, so it is not suitable for watering with ferrous sulfate. Usually we can dry the flowers of lilac, then soak them in warm water for five minutes and drink them. They have high medicinal value.

Forsythia

Forsythia has high requirements for the growth environment. It blooms from March to April and bears fruit from July to September every year. If ferrous sulfate is used to water Forsythia, the flowers will wither quickly and may even cause the death of the entire plant.

Crape Myrtle

The flowers of crape myrtle are very beautiful and are called 100-day red. They bloom from June to September and bear fruit from September to December. Do not use ferrous sulfate to water crape myrtle during normal cultivation, otherwise it will make the leaves of crape myrtle turn yellow. Continuous watering may even cause the death of crape myrtle.

Albizzia

Albizzia julibrissin belongs to the genus Albizzia in the Fabaceae family. It has a strong vitality. Its flowers have a unique shape and are deeply loved by people. However, Albizzia julibrissin is not suitable for watering with ferrous sulfate, otherwise it will reduce the ornamental value of Albizzia julibrissin.

white wax

White wax trees do not have high requirements for the growth environment. We can usually grow them in pots, which has a very high ornamental value. However, if you water white wax trees with ferrous sulfate, it will stimulate the roots of white wax trees and affect their normal growth. It may even cause white wax trees to not bloom, so be sure to water them with ferrous sulfate.

Hibiscus

Hibiscus belongs to the genus Hibiscus of the Malvaceae family. If it is cultivated in alkaline soil, it will grow quickly and the flowers it blooms will be bright and beautiful. If it is watered with ferrous sulfate, it will slow down the growth of hibiscus.

Pomegranate flowers

Pomegranate flowers are very beautiful and bloom in May every year. If you use ferrous sulfate to water pomegranate flowers, it will not only make the pomegranate flowers wither quickly, but also reduce the fruits, which will affect the growth of pomegranate flowers.