(Evening Primrose or Ozark Sundrop) Oenothera 'Lemon Drop™' PP#16,393 is a new Evening Primrose that is quickly gaining popularity among gardeners and garden writers. Lemon Drop is a Proven Winners Perennial and also the recipient of the "Editor's Choice Award" from Country Living Gardener™. This new slection is covered with vibrant lemon yellow flowers all summer, even when the temperatures sizzle. Lovely upright habit with dark green foliage. Also an excellent choice for a combination planter!