- Up for sale is buddleia davidii, butterfly bush lavender flowers 200+ seeds - Butterfly bush is a semi evergreen shrub of about 12' tall with grey-green foliage. In late summer and early fall its arching canes bear at their tips long, 6-10", cones of densely packed, wonderfully perfumed, lavender flowers with an orange dot in the center. They are very attractive to butterflies and humming birds. - They are very fast growing and will bloom their second year. - Perennial - Zone: 5-10 - Sun: full sun - Water: regular - Soil: rich,well draining soil. - Height: 12' - Bloom time: late summer through fall - Difficultly: easy