The Q&A Archives: Bougainvilleas not blooming

Question: Hi. I have a Bougainvillea that has grown pretty large (it's about 5 years old), but only blooms for a short period. How do I know if it's getting too much water? It has a lot of green leaves, but the flowers only last about a month or so.
Thank you.
Kelly Castillo

Answer: Bougainvilleas bloom in a 5-6 weeks cycle and they tend to bloom better if they are kept on the dry side. Perhaps this is because in their native habitate they flower after a rainfall that ends a drought. In any event, provide as much sunshine as possible - the less direct sun, the fewer the blooms. You didn't mention whether or not you'd pruned your bougainvillea. These plants produce flowers on new wood that develops on old wood. You can try pruning it back a bit to force new flowering stems.

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