Bougainvillea—also known as the Paperflower—is an absolute showstopper in the summer with its explosion of vibrant color. But to get those iconic blooms, you’ve got to give it a little TLC and, more importantly, the perfect spot to soak up the sun, whether you’re growing it in a pot on the patio or as a houseplant.
Summer Vibes
Bougainvilleas are total sun-worshippers. They live for light and heat, so during the summer months, you definitely want to give your climbing shrub a prime spot on the balcony or patio.
Outdoor Season
Since these beauties are pretty sensitive to the cold (and by “cold,” I mean anything in the single digits), the outdoor season usually kicks off:
- In mid-May (once the threat of frost has passed).
- Whenever you’re sure those late-spring freezes are over.
The outdoor party ends in the fall. To make sure your Bougainvillea doesn’t freeze, bring it inside well before the first frost—ideally when temperatures consistently dip below 45°F (7°C). Depending on where you live, this usually happens sometime in September or October.
Picking the Perfect Spot
If you want that lush, “wow-factor” bloom, your Bougainvillea needs a sunny home. It can handle partial shade, but you’ll definitely notice fewer flowers. If you have smaller plants, make sure they aren’t getting shaded out by their bigger neighbors.
To really satisfy their craving for heat, try placing them against a garden wall or the side of your house. These surfaces soak up heat during the day and radiate it back at night. A sunny corner is also great because it traps warm air. Pro tip: Placing them near a reflective window or a light-colored wall provides even more light!
One more thing—try to find a spot protected from wind and rain. Those gorgeous colorful “petals” (which are actually bracts) are surprisingly delicate and can get beat up by heavy storms or gusty winds.
Winter Care
When the thermometer starts dropping toward the 40s, it’s time to head indoors. Your winter storage spot needs to be bright, no matter what. The ideal temperature for overwintering your Bougainvillea depends a bit on the specific variety, but light is non-negotiable.
Growing Indoors Year-Round
If you’re planning to keep your Bougainvillea as a full-time houseplant, you need to mimic its natural tropical environment. A heated sunroom or conservatory is the gold standard. If you don’t have one, a large south-facing window is your best bet to ensure it gets enough hours of sunlight. Just a heads-up: be careful if the leaves are touching the window glass, as it can actually get *too* hot right there in the midday sun. You might want to provide a little shade during those peak afternoon hours to prevent scorching.
