Bougainvillea—also known as the Paperflower—is a total sun worshipper. To get those iconic, vibrant blooms, this plant needs plenty of heat and direct sunlight. Because it’s not a fan of the cold, most of us here in cooler climates treat it as a prized indoor plant or a seasonal patio star.
Can You Plant Bougainvillea in the Ground?
Since Bougainvillea is a perennial, you might be wondering if you can just plant it directly in your garden. Unfortunately, for most of us in the States (unless you’re in a tropical zone like Southern Florida or California), the answer is a firm “no.” While some varieties can technically handle a quick dip down to about 20°F, sustained freezing temperatures are a death sentence for these beauties. Your best bet is to keep them in containers so you can move them inside when the weather turns chilly.
Growing Bougainvillea as a Houseplant
You can definitely keep a Bougainvillea as a year-round houseplant, but you’ve got to be picky about where you put it. If it doesn’t get enough light or warmth, it’ll let you know pretty quickly. Signs of a grumpy plant include sparse blooming, dropping leaves, or just looking generally “leggy” and sad.
To keep your indoor Bougainvillea happy, aim for:
- A frost-free sunroom or conservatory.
- A bright, south-facing window that gets tons of direct sun.
The Best of Both Worlds: Summering on the Patio
Even if you keep yours indoors most of the year, your Bougainvillea will love a “summer vacation” outside from roughly mid-May through September. This allows it to soak up the intense light and heat it needs during its blooming season. Trust me, it’ll thank you with a massive explosion of color!
When moving your plant to the balcony or patio, look for a spot that offers:
- Full, direct sun.
- Protection from heavy rain and strong winds.
Pro tip: Place your pot against a south-facing brick wall or in a cozy corner. The wall will soak up heat during the day and radiate it back to the plant at night. If you place it near a reflective window, it’ll get even more of that precious light.
Once the temperatures consistently drop into the 40s or low 50s, it’s time to end the outdoor season. Bring your Bougainvillea back inside to overwinter in a safe, warm spot until next year!
