Can the pruning of Chinese roses be postponed to mid-to-late September?
This article's core guide: Should Chinese roses be pruned in autumn now? Let's explore the knowledge of flowers and plants with the editor!
Recently, many rose enthusiasts have been asking about the pruning of Chinese roses in autumn.
So, can Chinese roses be pruned now in autumn?
It's only the beginning of late August now, and most areas are still experiencing high temperatures. I personally suggest waiting a bit longer. Of course, if you are in the northern regions where autumn comes early, pruning should be done now. But for regions like Jiangsu, Zhejiang, and Shanghai, it's better to wait until the end of August or early September. In Guangdong and Guangxi, there's no rush, and you can wait until the end of September.
The timing for pruning Chinese roses in autumn is not fixed. For healthy rose plants, they can bloom almost every month, even in summer. Pruning is just to control the plant's shape and regulate the blooming period. Therefore, the timing for autumn pruning can vary greatly based on different needs.
For example, if we want the roses to bloom around September 10th, we can prune in early August. If we want them to bloom during the National Day holiday, we can prune around August 25th.
Why don't I recommend pruning Chinese roses now? Mainly because the temperature is still rising, and the new buds after pruning are not robust, and the quality of the flowers is not good. For most varieties of roses, pruning the first batch of autumn flowers now will still look ugly. Varieties that need temperature differences to color, such as Six-Winged Angels, will still not be able to color properly if pruned now.
Because pruning too early results in poor-quality first batch of autumn flowers with low ornamental value, but the new buds will consume a lot of nutrients to bloom. Therefore, unless there are specific requirements for blooming periods, I don't recommend pruning too early. It's suggested to check the weather forecast and start pruning when the temperature is consistently around 30 degrees Celsius.
Can the pruning of Chinese roses be postponed to mid-to-late September?
Some rose enthusiasts wonder if, since high temperatures after pruning result in poor-quality blooms, they should wait until mid-to-late September when temperatures drop completely before pruning. Wouldn't the flowers bloom more standard and beautiful then?
Theoretically, this approach is possible, but there is a problem: our Chinese roses will start their growth mode as they sense temperature changes with the change of seasons.
Basically, by the end of August or early September, when the temperature difference between day and night is significant, the roses will gradually start their growth mode. If we don't prune at this time, the roses will sprout many new buds from the top of the branches. After the new buds sprout, the old leaves will turn yellow and fall off in large numbers. This will be尴尬 because the new buds at the top are not ideal flowering branches, but the leaves in the middle and lower parts have already metabolized and fallen off. If we try to prune back then, it can easily lead to weakened growth of the roses.
So, it's best to prune the roses in late August or early September when the temperature is around 30 degrees Celsius. After pruning, the roses will quickly sprout new buds, maintaining the plant's vitality.
If the temperature is still high after pruning and you're worried about the quality of the first batch of autumn flowers, you can pinch off the flower buds when the new branches grow. After pinching off the flower buds, the roses will quickly grow new buds and continue to produce flower buds and bloom.
Pinching off the flower buds during the budding stage will delay the first batch of autumn flowers by about 15 days, which will be around mid-to-late October when the temperature is relatively low. The new flower buds that grow will bloom beautifully.
It should be noted that pinching off the top and flower buds in autumn needs to be based on local weather conditions and should not be blindly followed. For regions where winter comes early, caution should be exercised and the timing should be calculated to avoid the roses not blooming properly due to winter cold.
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