When shopping, look for these specific varieties known for their compact growth and vibrant colors: Bougainvillea Bonsai Summer Work | The Bonsai Supply
Their famous "flowers" are actually colorful, paper-like leaves called bracts that surround small, white true flowers. They come in striking shades of pink, purple, red, orange, and yellow.
They tolerate hard pruning and frequent shaping, making them suitable for almost any bonsai style.