Lilac, Betsy Ross LilacBetsy Ross Lilac is a large deciduous shrub with an upright rounded habit and rich green foliage. Large panicles of fragrant warm white flowers bloom heavily from early to mid spring. Best flowering with full sun and rich, moist well drained neutral soils. Betsy Ross is disease resistant with an improved tolerance of heat and humidity of the South. Type: Shrub Origins: Eastern Europe Height: 8' 10' Spread: 8 10' Spacing: 9 USDA Hardiness Zone: 4 8