How to Grow Camellias? Cultivation Methods and Precautions

Everyone must have seen camellias at the botanical garden, right? They are so beautiful, so surely many people want to grow them. But do you know how to grow camellias? Be careful, or you might end up killing the flowers. So let us walk you through the precautions for growing flowers, and follow along with the material below to learn together.

How to Grow Camellias

1. Acidic soil

Camellia is a flower that grows in the south, and it prefers acidic soil. If the soil is alkaline, it will hinder the growth of the camellia. Use loose, fertile acidic soil, choosing leaf mold soil plus loess and sandy soil, mixed in a 4:3:3 ratio to promote camellia growth. To maintain the acidity, you can add a few drops of ferrous sulfate to the soil once a month.

2. Moderate temperature

If you want to know how to grow camellias, you must pay attention to temperature. Camellias are neither heat-tolerant nor cold-tolerant, and grow best in a warm environment. The optimal temperature is between 18 and 25°C. In summer, provide appropriate shade; in winter, place it in a greenhouse or on an indoor balcony to catch the sun.

3. Appropriate watering

Camellias like warm, humid environments, especially during the growing season, when sufficient watering is needed to ensure their growth. In spring and autumn, water once every 2 to 3 days; in summer, water once a day; in winter, reduce watering to once every 5 to 6 days. Always keep the soil slightly moist, avoiding both excessive dryness and excessive wetness.

4. Sufficient light

Camellias like sunlight, and need good light in spring, autumn and the rainy season. In the hot summer, place them in a cool environment, and give an appropriate amount of light when it is cool at sunrise and sunset; this spot is exposed to sunlight all day long.

5. Fertilizing

Camellias need a lot of nutrients to bloom throughout the year, so fertilizing at this time is essential. This is especially true during the growing season and with autumn top-dressing, which can greatly secure the camellia's nutrients. Before flowering, it is best to apply phosphorus fertilizer to promote the growth of buds and flower buds. In October to November and April to May, apply fertilizer once every 10 days, three times in total. Use a small amount of fresh cake fertilizer left to ferment naturally; after watering, the fertilizer will naturally decompose, without causing fat damage or nutrient loss.

Camellia Cultivation Methods and Precautions

1. Camellia cultivation methods

1. Soil

Potting soil is very important for the growth of camellias, so you must be careful when choosing soil. Generally, soil with high humus content and slightly acidic soil is preferred, so it can meet the soil's needs.

2. Temperature

Camellias fear high temperatures and also fear low temperatures, so the temperature is best between 18 and 25 degrees. If the temperature is too high or too low, it will affect their growth. Especially in winter, move them back indoors for care; at noon when there is sun, you can move them to the balcony. In summer, prevent exposure to direct sun, and also prevent temperatures that are too high.

3. Watering

Camellias like humid places, so water is very important, but you must ensure they are watered appropriately, not too dry or too wet, otherwise root growth will be affected. If it is summer, you can water a bit more to help them grow; if it is winter, you need to reduce watering. You can water once every 2 to 3 days to prevent frost damage.

4. Fertilizing

When using fertilizer for camellias, the amount should be sufficient. Especially during the growing season, in addition to adding fertilizer that benefits growth, you also need to add phosphorus fertilizer, which can promote more vivid flowers later on. But remember not to fertilize too much; too much will affect root growth.

5. Regular

Pruning is also very important for protection. When there are too many flower buds, regular pruning is needed: cut off the weak branches above and tidy up the flower buds so they can better absorb nutrients.

6. Pests and diseases

Camellias are very prone to pests and diseases. A common cause is black mold, which is extremely harmful to the plant. So during the periods when they are susceptible to pests and diseases, it is necessary to spray some medication to prevent and control pests and diseases, to promote better growth.

2. Precautions for camellias

1. Selection of potting soil and pots for camellia cultivation

According to the growth characteristics of camellias, it is recommended to use slightly acidic, loose, fertile, mixed, well-draining soil as potting soil. Pay special attention to good drainage, and never use calcareous soil. The mixing ratio is: 6 parts red soil, 3 parts orchid mud (leaf mold soil), 1 to 2 parts fine sandy soil. The pot size should be moderate, neither too large nor too small. Generally, the ratio of pot to seedling is: one plant 40 to 50 cm tall, with a crown of 20 to 25 cm. It should be planted in a purple clay pot or a pot with a diameter of about 20 cm. Other sizes, etc.

2. Potting time for camellia cultivation

From February to March, the potting time is November; at this time in winter the flower buds are plump and the flowers are in full bloom, making it the most suitable time for potting. When the flowers are fading and new roots are still sprouting, if you want to pot them, you must be especially careful not to damage the root system. Generally, stop potting around the budding period, because at this time new shoots are about to emerge and leaves are unfolding, requiring a large amount of water. If potting is done, the new roots will be injured, which can easily affect that year's growth and development. Potting also avoids the seasons of high temperatures and severe winter, to prevent the plant from shrinking and dying.

Precautions for Hydroponic Camellias

1. Light: Camellia is a light-loving plant. Just as with soil cultivation, you only need to avoid strong summer light; in other seasons it needs better light.

2. A nutrient solution should be added to the water. During the vegetative growth stage, nitrogen and potassium are the main nutrients, while during the flower bud differentiation stage, phosphorus and potassium are the main nutrients.

3. There is no need to change the water too diligently, but every time you change the water, be sure to rinse the root system and remove the mucus adhering to the roots. Also clean the vase used for hydroponics thoroughly, preferably with 800 times diluted potassium permanganate.

4. The water level should not be too deep; about 2/3 of the root system can be in the water. If you are converting from soil cultivation to hydroponics, do not put the roots into the water at first. Just add pebbles to the tray at the upper part of the bottle to fix the root system, let the water vapor in the bottle rise to moisten it, and then insist on spraying water on the roots and pebbles every day.

5. The hydroponic bottle should not be too small; it is best if it is slightly deeper. The water temperature should not differ too much each time you change the water, so it can be grown very well.

In summer, camellias need special attention to the problem of insects. If insects hinder the camellia from absorbing nutrients, the camellia will wither. Do not just look at how beautiful the flowers are and assume they are easy to grow; this is a very labor-intensive task. For people without patience, we still do not recommend growing them.