Do roses like acidic or alkaline soil

Roses prefer loose, fertile, slightly acidic soil with good ventilation and drainage. Remember not to use clay soil.
After years of repeated planting of flowers, the soil is relatively acidic. The company’s special humic acid is a weak organic acid that can improve the rhizosphere soil environment. Together with its salt element fertilizer, it can form a buffer system to regulate and stabilize the pH value of the soil. Reduce the rapid changes in soil pH, and the water quality with high pH resistance (3-12) is stable and does not flocculate or precipitate to block drip irrigation.
After years of repeated planting of flowers, the soil is relatively acidic. The company’s special humic acid is a weak organic acid that can improve the rhizosphere soil environment. Together with its salt element fertilizer, it can form a buffer system to regulate and stabilize the pH value of the soil. Reduce the rapid changes in soil pH, and the water quality with high pH resistance (3-12) is stable and does not flocculate or precipitate to block drip irrigation.
When humic acid fertilizer is applied to acidic soil, the OH- released after humic acid chelates iron and aluminum ions in the soil neutralizes the H+ in the soil solution, thereby reducing soil acidity;
When humic acid fertilizer is applied to alkaline soil, humic acid reacts with calcium, magnesium, phosphorus, potassium and other salts solidified in the soil (commonly known as the white stuff on the saline-alkali ground), thus reducing the alkalinity of the soil and improving fertilizer utilization. .

Rose planting conditions:

Roses prefer medium-alkaline and slightly acidic soil that is rich in humus and well-drained. The most suitable acid-base environment is: neutral to slightly alkaline flowers and trees (around pH 6.5-7).
During the flowering period of roses, dry hot wind and soil drought are the most avoidable. During the production and development process of roses, there are two periods of growth stop (generally called aestivation in June-July and hibernation in November-December). At this time, no branches will appear and the branches will not stretch. long. The aestivation period is the best pruning period for flowering seedlings. During the hibernation period, you can apply base fertilizer and fill with overwintering water to lay the foundation for stable and high yield of flower buds in the coming year.

1: Soil requirements

1. Soil nutritional requirements,

The requirements for nutrients in the soil are: fertile soil, rich in humus, naturally black soil, generally rich in nutrients and high in humus content. The higher the organic matter content, the more beneficial it is to the growth of flowers. There is often earthworm activity in such soil.

2. Soil quality requirements

Generally speaking, soil that is heavy or compacted should not be used. Clay soil will condense when it rains and will dry out and become compacted after sunny weather. Soil is not good. It is not breathable, or after watering, the water cannot penetrate well, and the roots cannot fully receive the water, and it is easy for water to accumulate in the upper layer and damage the root system. Some sandy soil is not good either. It loses moisture quickly and becomes dry when the weather is sunny. It does not retain water or fertilizer. It is best to use sandy loam soil, where water can gradually penetrate and fertilizers will not be lost. It won’t cake or be too dry.

3. Soil properties

The acidity and alkalinity of the soil directly determines whether roses can be grown in the soil. For example, roses are most suitable for growing in medium-alkaline or slightly acidic soil. Then it cannot be planted in saline-alkali soil or saline soil. Grows poorly in purely alkaline soil. It cannot be grown in purely acidic soil. Growth will also be affected. Neutral alkaline slightly acidic soil is suitable for rose growth.

Table of soil nutrients and organic matter content required by roses

When humic acid fertilizer is applied to acidic soil, the OH- released after humic acid chelates iron and aluminum ions in the soil neutralizes the H+ in the soil solution, thereby reducing soil acidity;
When humic acid fertilizer is applied to alkaline soil, humic acid reacts with calcium, magnesium, phosphorus, potassium and other salts solidified in the soil (commonly known as the white stuff on the saline-alkali ground), thus reducing the alkalinity of the soil and improving fertilizer utilization. .

Rose planting conditions:

Roses prefer medium-alkaline and slightly acidic soil that is rich in humus and well-drained. The most suitable acid-base environment is: neutral to slightly alkaline flowers and trees (around pH 6.5-7).

During the flowering period of roses, dry hot wind and soil drought are the most avoidable. During the production and development process of roses, there are two periods of growth stop (generally called aestivation in June-July and hibernation in November-December). At this time, no branches will appear and the branches will not stretch. long. The aestivation period is the best pruning period for flowering seedlings. During the hibernation period, you can apply base fertilizer and fill with overwintering water to lay the foundation for stable and high yield of flower buds in the coming year.

1: Soil requirements

1. Soil nutritional requirements,

The requirements for nutrients in the soil are: fertile soil, rich in humus, naturally black soil, generally rich in nutrients and high in humus content. The higher the organic matter content, the more beneficial it is to the growth of flowers. There is often earthworm activity in such soil.

2. Soil quality requirements

Generally speaking, soil that is heavy or compacted should not be used. Clay soil will condense when it rains and will dry out and become compacted after sunny weather. Soil is not good. It is not breathable, or after watering, the water cannot penetrate well, and the roots cannot fully receive the water, and it is easy for water to accumulate in the upper layer and damage the root system. Some sandy soil is not good either. It loses moisture quickly and becomes dry when the weather is sunny. It does not retain water or fertilizer. It is best to use sandy loam soil, where water can gradually penetrate and fertilizers will not be lost. It won’t cake or be too dry.
Therefore, the formation of sandy loam soil can effectively increase the soil aggregate structure and improve pore conditions. It happens that humic acid is an organic colloidal substance. When observed under a high-magnification electron microscope, it is composed of extremely small spherical particles connected into lines or grapes, forming Loose spongy aggregates. It can directly form humic acid clay complex with clay minerals in the soil. The complex forms a flocculent gel with calcium, iron, nitrogen, phosphorus, potassium and other elements in the soil, cementing the dispersed soil particles into a more water-stable form. With high aggregates, the soil is loose and porous, water, fertilizer, air, and heat are coordinated, the soil bulk density is reduced, and the total porosity is increased.

3. Soil properties

The acidity and alkalinity of the soil directly determines whether roses can be grown in the soil. For example, roses are most suitable for growing in medium-alkaline or slightly acidic soil. Then it cannot be planted in saline-alkali soil or saline soil. Grows poorly in purely alkaline soil. It cannot be grown in purely acidic soil. Growth will also be affected. Neutral alkaline slightly acidic soil is suitable for rose growth.

2: Temperature control:

The most suitable growth and development temperature for rose production is 24℃–26℃ during the day and 14℃–16℃ at night.
When the night temperature is lower than 8℃ in winter, the growth is slow, the branches become shorter, and the number of double-hearted flowers increases. When the night temperature is lower than 5℃ for a long time, the new branches will be shorter and the number of blind branches will increase. The ideal temperature difference between day and night is 10℃–12℃

Three: Humidity control:

Roses require a relative humidity of 70-80% during the budding and leaf growth stages, and a relative humidity of 40-60% during the flowering stage. The daytime humidity is controlled at 40%, the nighttime humidity is controlled at 60%, and the humidity in the greenhouse is higher than 90%. More than % of greenhouse films, water tanks, plants and leaves begin to form water droplets, which can easily induce a variety of diseases!

Four: Temperature control:

The most suitable growth and development temperature for rose production is 24℃–26℃ during the day and 14℃–16℃ at night.
When the night temperature is lower than 8℃ in winter, the growth is slow, the branches become shorter, and the number of double-hearted flowers increases. When the night temperature is lower than 5℃ for a long time, the new branches will be shorter and the number of blind branches will increase. The ideal temperature difference between day and night is 10℃–12℃

Five: Humidity control:

Roses require a relative humidity of 70-80% during the budding and leaf growth stages, and a relative humidity of 40-60% during the flowering stage. The daytime humidity is controlled at 40%, the nighttime humidity is controlled at 60%, and the humidity in the greenhouse is higher than 90%. More than % of greenhouse films, water tanks, plants and leaves begin to form water droplets, which can easily induce a variety of diseases.

Growing roses requires choosing the right soil. 

1. pH value:

Roses prefer neutral to slightly acidic soil (pH 6.0-7.0). To make sure the pH of your soil is suitable for growing roses, you can use a soil testing kit to check the pH of your soil. If the soil is too acidic or alkaline, the pH can be adjusted by adding lime or sulfur.

2. Add organic matter:

Roses prefer soil rich in organic matter. You can increase the organic matter content of the soil by adding well-rotted compost, leaf mold, or other organic fertilizers. Organic matter can improve the structure of the soil, increase soil water retention and aeration, and help plant growth and development.

3. Drainage:

Roses require well-drained soil, and excessive water accumulation can lead to root rot and disease. To improve soil drainage, add sand or vermiculite to the soil before planting and keep the soil loose.

4. Nutritional requirements:

Roses are heavily vegetative plants and require an adequate supply of nutrients to keep growing and blooming. Before planting, major nutrients such as phosphorus and potassium, as well as trace elements, can be added to the soil to meet the needs of rose plants. Organic or chemical fertilizers can be used to provide these nutrients. Regular fertilization is an important step in keeping your plants healthy.

5. Nutrient balance:

In addition to providing adequate nutritional supply, attention should also be paid to balancing the proportions of different nutritional elements. Excessive nitrogen fertilizer may cause lush green growth but inhibit flowering. The correct balance of nutrients helps promote healthy plant growth and flower formation.

6. Pest and disease control:

Choosing the right soil can also help prevent and control pests and diseases. Some pathogenic bacteria and pests prefer specific types of soil. Understand the impact of soil on pests and diseases, and you can take corresponding prevention and control measures before planting, such as crop rotation, disinfection, etc.
I hope this knowledge about soil for growing roses can be helpful to you, and I wish you good luck growing roses!