How do you care for a Radermachera sinica in winter so it survives the cold safely?

The Radermachera sinica is a common variety among household potted plants, and it naturally loves a high-temperature, high-humidity, sunny environment.So how does the Radermachera sinica overwinter? How is it cared for normally?

1. How does the Radermachera sinica overwinter?

The Radermachera sinica cannot overwinter below 8 degrees; when the ambient temperature drops to around 10, it should be moved indoors promptly. At the same time, apply potassium dihydrogen phosphate solution twice in a row to improve its cold resistance. The watering interval should be lengthened, and watering should be done at noon when the temperature is higher. In addition, the potting soil should be loosened to improve aeration.

2. How is the Radermachera sinica normally cared for?

1. Soil

Use a loose, fertile, well-drained and well-aerated potting soil rich in organic matter. It is usually mixed with 5 parts garden soil, 3 parts leaf mold, 1 part decomposed organic fertilizer, and 1 part river sand, or it can be mixed with domestically produced peat soil plus perlite and vermiculite. During its growing season, loosen the soil once a month.

2. Light

The Radermachera sinica is a light-loving plant and can also tolerate slight shade; full sun and semi-shade environments are both acceptable. When displayed indoors, it should be placed in front of a window with ample light or indoors, but the light intensity should not exceed 400001x at most. Its seedlings are relatively shade-tolerant, and direct sunlight should be avoided in summer. During the overwintering period, it can be placed in a higher spot in front of a window or on a balcony so it receives more light.

3. Watering

The Radermachera sinica likes moisture, so just keep the potting soil moist. Generally, in winter it is best to water on clear days, at a time in the afternoon when the temperature is higher. In summer, when grown indoors, water once every 3-5 days. When the weather is dry, spray the leaves with water about every 10 days. You can use a 0.1% potassium dihydrogen phosphate solution and spray both the front and back of the leaves evenly, which can make the leaves more dark green and glossy.

4. Fertilizing

It is best to start fertilizing the Radermachera sinica in March, stop fertilizing in summer, and then give it a top dressing around the Mid-Autumn Festival. It is best not to fertilize in summer and winter.

5. Pruning

To ensure a beautiful tree shape and well-spaced branches and leaves, reasonable pruning should be carried out. The first pruning and shaping should be done before spring sprouting, removing some old leaves and overly dense branches and leaves. If you want the Radermachera sinica to grow more side branches, you can pinch the tips so the plant shape becomes round and attractive.

To help the Radermachera sinica overwinter safely, in addition to controlling water and keeping it warm, you can also cover the plant with a plastic bag, but remember to leave a gap for ventilation.