1 Gallon Pot (Stokes Aster) Zone 5 Full Sun Blooms are similiar to asters but have a leafy bract around the bud. Useful in borders or containers, it requires light moist well drained soil. Distinctive soft yellow flower over nicely mounding deep green foliage. Flower Colour – Pale yellow Leaf Colour – Green Bloom Time – July-September Height – 12-18 Space – 12