african violet, parma violet, potted flower on wooden trunk in the garden

trunk tree nature wood environment parma violet propagation plant care houseplants fertilization yellowing leaves discoloration pests violets diseases plante verzi perene saintpaulia blue grow house lilac horticulture indoor flower cultivation flowerpot herbaceous botany blossom bloom natural decoration garden hobby decorative color petal african pots planting green gardening potted wooden