Stock Flower Not Blooming. Put the bougainvillea plant in direct sun for at least eight hours daily for them to bloom their best. 24052021 Stock stops blooming when temperatures are high no matter what you do as they can only set buds when the temperature is less than 65 degrees F usually from March through June.
Stock thrives in cooler weather or climates. Theyre related to the cabbage family and are also known as gillyflower. The time period when you thin them out may be preventing them from blooming.
23082015 The flowering of bougainvilleas depend on the amount of light the plants receive.
25042021 Other info says stock flowers can be biennial. If you are buying large plants they should be. The time period when you thin them out may be preventing them from blooming. Because healthy growth follows seasonal cycles providing your plant with the correct light for different lifecycle stages is essential.