How to Water a Potted Camellia Sasanqua and What to Do About Root Rot in Potted Camellia Sasanqua

In cultivating potted plants, what matters is the ornamental appeal of the pot and the growth of the plants within it. Planting very beautiful, uniquely shaped plants whose growth is poor will greatly diminish the vitality of the pot and affect its appearance as well. Therefore, when growing potted plants, you must do well in the basics such as watering and fertilizing, and then paying attention to the growth of the plants.

How to Water a Potted Camellia Sasanqua

1. Watering steps for camellia sasanqua

Camellia sasanqua is a plant that prefers a moist environment, so watering camellia sasanqua is a very important part of its care.

Camellia sasanqua needs to be watered properly: when camellia sasanqua is newly planted and being cultivated for growth, it should be watered properly to maintain soil moisture and ensure its survival rate.

During the seedling stage, watering management for camellia sasanqua should be careful and meticulous, watering at least about 3 times a day, and also spraying water onto the leaves of the camellia sasanqua, so that the water supply and transpiration of the above-ground stems and leaves and the underground roots are balanced with each other. After the seedlings sprout, normal watering can resume.

During the seedling sprouting and growth period, water appropriately according to the growth needs of the camellia sasanqua.

2. Watering times for camellia sasanqua

Watering camellia sasanqua throughout the four seasons is also different.

First, summer: when watering camellia sasanqua in summer, ensure once each morning and evening every day, and every few days also spray water on the leaf surface, both keeping the leaves moist and making the leaves fresh and clean.

Second is the cold winter season. Because the air circulation in winter is cold, camellia sasanqua will enter a dormant period, so it is best to water less, and watering once every 3 days or more is sufficient.

Finally, in spring and autumn, in addition to watering as needed by the camellia sasanqua, also spray water on the leaf surface every few days.

3. Precautions for watering camellia sasanqua

The main thing to pay attention to when watering camellia sasanqua is that watering must soak through. Do not stop watering just because the soil looks wet; be sure to dig into the soil to see whether it has penetrated and reached the roots.

Note that for the first watering right after camellia sasanqua is planted, be sure to water thoroughly, and afterward do not water as long as the potting soil is not dry.

What to Do About Root Rot in Potted Camellia Sasanqua

1. Causes of root rot in camellia sasanqua——potting soil

If the potting soil is chosen improperly, camellia sasanqua is very prone to root rot. This mainly includes two aspects: soil and repotting.

If the problem is with the soil, that includes two causes: first, the soil's pH is unsuitable; second, the soil is not loose and breathable enough. Camellia sasanqua likes acidic soil, so when choosing potting soil, do not choose highly alkaline soil. In addition, the soil also needs to be loose and breathable and rich in humus. A fairly suitable option is mountain soil, to which a certain amount of pine needles or river sand can be added, which can benefit the growth of the camellia sasanqua roots and reduce the occurrence of root rot.

If the problem is with the flower pot, then the cause should be sought in two aspects: texture and size. Generally, for planting camellia sasanqua, an unglazed clay pot is best, followed by a purple clay pot; a porcelain pot is relatively unsuitable. In terms of size, mainly ensure that the camellia sasanqua plant can grow well and that the root system can extend easily.

2. Causes of root rot in camellia sasanqua——fertilizing

Root rot in camellia sasanqua caused by fertilizing is mainly due to fertilizing too frequently and too heavily. For fertilizing camellia sasanqua, it is best to use light fertilizer, and it can be divided into 3 growth stages. In March and April, fertilizing mainly with nitrogen fertilizer can promote good growth of spring shoots. In May and June, fertilizing mainly with phosphorus fertilizer can make the flowers brilliant. In September and October, it is best to apply a compound fertilizer of nitrogen, phosphorus and potassium. Winter is the dormant period of camellia sasanqua, and fertilizing should generally be stopped.

So when fertilizing, in addition to ensuring sufficient nutrients for the camellia sasanqua, you also need to pay attention to the degree, to prevent the fertilizer from being too concentrated and burning the roots, causing root rot.

3. Causes of root rot in camellia sasanqua——watering

In fact, the cause of root rot in camellia sasanqua is mostly too much watering. Camellia sasanqua needs a large amount of water when growing vigorously, but there still must be a limit, so watering is best done according to the dry and wet condition of the potting soil. This involves factors such as climate, the size and texture of the flower pot, and the growing environment. Basically, water when the surface of the potting soil becomes dry, and do not water excessively, otherwise root rot will occur. In addition, if watering is needed in winter, the water temperature must not be too low.

What to Do When Camellia Sasanqua Leaves Drop

1. Appropriate shading

Because newly planted camellia sasanqua cannot withstand cold wind and sun in early spring, it should be placed outdoors in a wind-sheltered, warm, semi-shaded spot.

If it is cold outdoors, it should be placed indoors in a spot with scattered light, and only as the temperature rises can the pot gradually be placed outdoors.

As the temperature continues to rise, around midday the pot can be placed on a north-facing windowsill of a south room or on the balcony of a north room, receiving only the morning and evening sun while avoiding direct sunlight around midday. In early summer it should be placed under the eaves of a corridor or under a trellis in the yard.

2. Moderate watering

For newly transplanted or just-mailed camellia sasanqua seedlings, after the first thorough watering, do not water as long as the potting soil is not dry; spray water on the plant and the pot surface 2—3 times a day to keep the potting soil slightly moist. This both ensures the leaf surface does not lack water and keeps the potting soil from becoming too wet.

Normally, water according to the principle of watering when dry and stopping when wet, and water thoroughly when watering.

3. Light fertilizing

Under normal circumstances, apply a dilute nitrogen fertilizer once from February to March to promote the growth of branches and leaves. Apply a dilute cake fertilizer water once between April and May to favor flower bud differentiation. Apply 0.2% monopotassium phosphate once from September to October to promote large flowers and vivid colors. To keep the potting soil at an appropriate acidity, you can combine fertilizing with watering of alum fertilizer water or irrigate with water soaked from green grass.

Methods for Preventing and Controlling Camellia Sasanqua Diseases

1. Anthracnose

The potting soil used for cultivation should be fertile, loose, slightly acidic loess with good aggregate structure and good drainage, moisture drainage and breathability. For mature plants, repot once every two years, and when repotting, apply well-rotted base fertilizer, mixing 50% of the potting soil with about 10% compost or organic fertilizer fermented with effective microorganisms. Pay attention to light and shading: camellia sasanqua likes sunlight, so in winter it should receive all-day sunlight, while in summer and autumn it should not be exposed to direct sunlight.

You can regularly spray Guoguang Yintai (80% zineb wettable powder) 600—800 times dilution and Guoguang Sitaling, for prevention before disease and to supplement nutrition, improving ornamental value. In the early stage of disease, spray 25% prochloraz emulsifiable concentrate 500—600 times dilution, or 50% mancozeb wettable powder 400—600 times dilution. Use 2—3 times consecutively, with an interval of 7—10 days.

2. White star disease

Chlorothalonil and zineb types are protective fungicides, suitable for prevention before disease onset. It is recommended to use Guoguang chlorothalonil or 80% zineb 600—800 times dilution spray for prevention and control before disease onset.

During the growth of camellia sasanqua, there may be many problems encountered, most of which are caused by improper cultivation. So starting from the basics, if you want camellia sasanqua to grow well, you need to master the growth habits of camellia sasanqua. Waiting until problems arise and then trying to remedy them is always a poor strategy.