How to Grow Sinocalycanthus chinensis and Things to Note

1. Light and Temperature

Sinocalycanthus chinensis can tolerate a brief high temperature of 40°C and a low temperature of -15°C. Sinocalycanthus chinensis likes a warm, humid environment with not-too-strong sunlight, which is more suitable for its growth. If Sinocalycanthus chinensis is exposed to full sunlight for a long time, its leaves will turn yellow and its growth will suffer. Therefore, Sinocalycanthus chinensis should avoid direct sunlight and being placed in the sun for long periods. It only needs appropriate light and temperature each day.

2. Watering

Sinocalycanthus chinensis is drought-tolerant and afraid of waterlogging, so the soil needs to be kept in a semi-moist state, but it must not lack water in summer, and in the rainy season it should be drained promptly to avoid affecting flower bud formation. During the flowering period of Sinocalycanthus chinensis, the amount of watering must be reasonable. Too little watering will cause the flowers to bloom unevenly; too much watering can easily cause flowers and buds to drop.

3. Soil

Sinocalycanthus chinensis is suitable for growing in fertile, loose, well-drained sandy loam. The potting soil can be prepared by mixing sand slope and coniferous humus soil at a ratio of 1:1.

4. Fertilizing

Sinocalycanthus chinensis likes fertilizer. Timely fertilizing can promote flower bud differentiation and produce more flowers. In spring, apply leaf-growing fertilizer twice. From the end of June to just before the dog days, fertilize Sinocalycanthus chinensis once every half month or so to encourage flower bud formation. In autumn, fertilize once more, with the aim of plumping up the flower buds. After flowering and before leaf drop, apply topdressing two or three times. Before winter arrives, apply one more round of dilute horseshoe water to provide the nutrients needed for flowering and help it get through the winter.

Now that we understand how to grow Sinocalycanthus chinensis, let's take a look at what needs attention when growing it!

How to Grow Sinocalycanthus chinensis and Things to Note

How to Grow Sinocalycanthus chinensis

Temperature and Light

Sinocalycanthus chinensis can overwinter and get through summer normally in places such as Jiangnan, and can tolerate a brief high temperature of 40°C and a low temperature of -15°C. It likes a warm, humid growing environment with not-too-strong sunlight. Under full sunlight its leaves turn yellow and its growth suffers, so it should avoid direct sunlight and being placed in the sun for long periods; an appropriate amount of light is enough.

Watering

Sinocalycanthus chinensis is drought-tolerant and afraid of waterlogging; keeping the soil semi-moist is enough. Drain promptly in the rainy season. But in summer it must not lack water, otherwise the leaves will form dry, whitish patches, affecting flower bud formation. During the flowering period of Sinocalycanthus chinensis, the amount of watering must be reasonable. If there is too little water, the flowers will bloom unevenly; too much watering can easily cause flowers and buds to drop.

Soil

It is suitable for growing in fertile, loose, well-drained sandy loam. The potting soil can be prepared with equal amounts of sand slope and coniferous humus soil.

Fertilizing

It likes fertilizer. Timely fertilizing can promote flower bud differentiation and produce more flowers. In spring, apply leaf-growing fertilizer 2 times. From the end of June to before the dog days, apply a compound fertilizer once every half month or so to encourage flower bud formation; fertilizing should focus mainly on phosphorus and potassium fertilizer, with a moderate amount of nitrogen fertilizer. After the autumn cools, apply cake fertilizer once to plump up the flower buds. After flowering and before leaf drop, apply topdressing 2-3 times. Before winter arrives, apply one more round of dilute horseshoe water to supply the nutrients needed for flowering.

Things to Note When Growing Sinocalycanthus chinensis

Pay attention to pest and disease control

The main problems are damage from scale insects and aphids, as well as black spot disease and anthracnose. Especially in high-temperature seasons, management needs to be strengthened.

Pay attention to wind protection

Sinocalycanthus chinensis is afraid of wind, so when growing it in the open ground, choose a sheltered spot. If wind protection is not done properly, the leaves will develop rust spots from rubbing against each other. If it is exposed to wind during the flowering period, the buds will be slow to open, and the petals will appear unspread, and so on.

Prune in good time

Sinocalycanthus chinensis has strong branching ability. Timely pruning helps encourage more flowering branches to sprout and produce more flowers. Pruning is suitable after the flowers fade and before the leaves emerge, generally carried out between March and June, and stopped after July. Cut off diseased and pest-infested branches, dead branches, crossing branches, overly dense branches, and so on. For one-year-old branches, keep 2-3 pairs of buds at the base and cut off the upper branches to encourage branching. After that, once each new branch grows two or three pairs of leaves, pinch it back once.

Things to Note When Growing Sinocalycanthus chinensis

1. Pest and Disease Control

The main insect pests of Sinocalycanthus chinensis are damage from scale insects and aphids, and the diseases are black spot disease and anthracnose. They are especially likely to occur in high-temperature seasons, so management needs to be strengthened in summer.

2. Pay attention to wind protection

Sinocalycanthus chinensis is afraid of wind, so when growing it in the open ground, choose a sheltered spot; otherwise the leaves will develop rust spots from rubbing against each other. If it is exposed to wind during the flowering period, the buds will be slow to open, and the petals will appear unspread, and so on, making the whole plant look uncoordinated and less attractive.

3. Prune in good time

Sinocalycanthus chinensis has strong branching ability. Timely pruning helps encourage more flowering branches to sprout and produce more flowers. Generally, prune the flowering branches between March and June, and stop pruning after July. Pruning the flowering branches mainly targets diseased and pest-infested branches, dead branches, crossing branches, overly dense branches, and so on; cutting off the upper branches is to encourage branching.

That is all the editor has put together on how to grow Sinocalycanthus chinensis and things to note. I hope that after reading it, you too can grow fresh, elegant, and charmingly beautiful Sinocalycanthus chinensis!