Narrow-leaved Vervain$4.00 in 3″ re-used plastic pot In stock - Narrow-leaved Vervain quantity + Add to cart Description ... (Verbena simplex) a quiet little plant with a scattering of white flowers that are essential to many tiny pollinators. Full sun, dry soil, great choice for rock gardens. You might also like... Downy Wood Mint $4.00 Add to cart Switchgrass $1.00 – $2.50 Select options Marjoram, Marcelka $4.00 Add to cart Bushy Bluestem $4.00 Add to cart