Flowers in Bac Ha flower valley bloom throughout all four seasons with many flower species such as: petunia, lavender, hydrangea, cymbidium, rose, jade, nasturtium, azalea, chrysanthemum... Tourists come to visit Bac Ha calendar can visit the flower valley at any time of the year, because each season Bac Ha flower valley has its own color. Petunia is a beautiful small flower, shaped like flying butterfly wings, with many colors such as white, pink, purple...