120 Days to maturity. Penstemon palmeri. Palmer's Penstemon Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, perennial. Growing Palmer's penstemon seeds this season is an effortless and vibrant way to splash some familiar summer color and fragrance into your home or garden. Palmer's seeds grow elegant penstemons bursting with fragrant "snapdragon-like" flower stalks. Makes an eye-catching mid-level planting in any flower bed. Palmer's penstemon seeds grow bold and brilliant flowers, promising butterflies and important pollinators to the garden all season long. Palmer's penstemon is easy to grow from seed, and its hardy and robust stalks are an essential seasonal twist to traditional snapdragon arrangements and centerpieces.