How to Grow Bougainvillea on a House Wall

Select a wall that receives full sunlight, or at least six hours of sun per day. Lay wire fence paneling against the house wall, leaving only 1 or 2 inches of space between. Leaning the paneling should suffice; you do not need to permanently secure it. Bougainvillea needs a base to climb on; you cannot train it to grow on your house wall without the wire base. Once it is growing healthily on the paneling, it will likely spread over the rest of the wall. Alternatively, you can create a wire grid directly on your wall with a roll of 12-gauge wire, small roofing nails and a hammer. You can find the necessary materials at your local home improvement store.

Place clay pots along the house wall at 3-foot intervals, directly against the wire paneling. Fill their bottoms with 2 inches of gravel. Add a 1-to-1 mixture of peat moss and potting soil to fill them the rest of the way, stopping 2 inches from the top. Make holes in the potting soil in the center of each pot, large enough to accommodate the bougainvillea plants. All the necessary materials should be available from your local gardening store.

Remove a started bougainvillea from its container and place it gently into the hole in one pot. Pack the soil around it and repeat with the remaining bougainvillea, one per pot, until all the planters are full. You can find started bougainvillea from most nurseries.

Pull the length of each bougainvillea toward the paneling and slide it beneath one wire. Weave the bougainvillea through the wire carefully, one or two rungs up, without breaking the stem. Repeat with the remaining plants.

Water the bougainvillea when the soil dries completely; the frequency depends on your climate. Feed them with a liquid fertilizer per manufacturer’s instructions once monthly.

Weave the tops of the bougainvillea plants into the rungs of the wire paneling when they grow taller. Eventually, they should begin climbing it without assistance; at that point, the training is complete. Continue to care for the bougainvillea as it grows on the house wall as normal.