Here we are talking about flowers that start with “P”. In total, there are at the least 18 favorite flowers whose names begin with the letter “P”. These flowers include the likes of Paeonia, Papaver, Passiflora, Pelargonium and many more. So let's see what flowers are there? its name start with the letter P in alphabetical list. We hope you enjoy seeing all the different kinds of flowers and their names.