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Roses bloom in the spring, usually in May-June. If they are artificially cultivated, the flowering period can be controlled by changing the growing environment, so there are roses open all year round. In contrast, most of the home maintained roses bloom once a year. To make the rose bloom better quality, first of all, the soil should be suitable, the use of breathable acidic soil is better, the second is to ensure that there is enough light, but also need to be properly watered.