iris
violet is my only answer.
Alyssum and aster are flowers. They begin with the letter a.
Xeranthemum and Xylobium are flowers. They begin with the letter x.
Oleander, omithoalum and orchid are flowers. They begin with the letter o.
Azalea.
Flowers that begin with the letter n:narcissusnasturtiumnerineNew Guinea impatiensnicotiananierembergia
Here are some flowers that begin with the letter G:GaillardiaGardeniaGazaniaGentianGeraldton WaxGeraniumGerberaGerbera DaisyGermander SpeedwellGermaniumGilly FlowerGladiolaGladiolusGlobeflowerGloxiniaGodetiaGoldenrodGrevilleaGumamelaGuzmaniaGypsophilaGypsophilla
Magnolia, marigold, morning glory and mums are flowers. They begin with the letter M.
Sweet pea, sunflower, salvia, snowball and snapdragon are flowers. They begin with the letter S.
Umbrella plant, urginea and ursinia are flowers. They begin with the letter U.
African Violet and Azalea are flowers that begin with the letter A. Pansy and Polyantha Roses are flowers that begin with the letter.
Nasturtium