How to Keep a Bougainvillea Healthy During Winter
It’s impossible not to fall in love with a bougainvillea at first sight and want it in your garden! This long-flowering shrub is usually grown in pots outdoors, but it is not suitable for cold temperatures during the winter. Here’s how to keep your bougainvillea healthy during the cold season, where to put it, and how to care for it.
How to Keep a Bougainvillea in Winter?
Did you know? The bougainvillea is named after the French navigator Louis-Antoine de Bougainville, who brought it to Europe in the 18th century. This tropical plant is beloved, especially in the Mediterranean region of southern France. In summer, it boasts abundant flowers in various colors depending on the variety. But is it a hardy plant? What temperature can it withstand? How do you keep it in winter? Find out below!
What Temperature Can a Bougainvillea Withstand?
Bougainvillea is a tropical plant native to South America. It does not tolerate cold well and is generally sensitive to temperatures below 5°C (41°F). It cannot withstand frost, which can quickly kill it.
How to Keep a Bougainvillea Indoors in Winter?
If you live in an area with cold winters, it’s best to grow bougainvillea in pots. Here are the steps to winter it indoors:
- Prune in Autumn: The leaves fall naturally in autumn, but if they haven’t yet, prune the plant by cutting them off.
- Where to Put Bougainvillea in Winter?: Choose a bright, cool, and sheltered location indoors before the first frost. The ideal temperature is between 10°C and 15°C (50°F to 59°F). Ensure the soil does not get too cold.
- Spring Transition: Gradually move the plant outside in spring, taking it out completely once the danger of frost has passed.
And Outside?
To keep a bougainvillea outside in winter:
- Water Before Cold Snaps: Water the plant before a cold spell, as moist soil is better protected than dry soil. Avoid overwatering.
- Mulch: Use mulch (dead leaves, compost, or wood cuttings) at least 10 cm thick to insulate the ground.
- Wrap for Frost: In case of frost, wrap the plant with thick fabric. Avoid plastic, as it can cause excess moisture.
How to Water It?
Proper watering is crucial for bougainvillea in winter:
- Young Plants: Water deeply every 3 to 4 weeks.
- Mature Plants: Water modestly, allowing the soil to dry out between waterings.
Should We Fertilize in Winter?
Do not fertilize bougainvillea in winter. Wait until early spring if the plant needs fertilizing. Use compost or coffee grounds to stimulate flowering.
Can You Prune in Winter?
Pruning stimulates new growth. Prune in late winter or early spring to prepare for the new season and boost flowering. If frost damages the plant, prune the affected parts once temperatures rise above 4°C (39°F).
With these tips, you can keep your bougainvillea healthy and thriving through the winter!
