bigleaf snowbell. Aggressive and native and invasive species, such as Japanese honeysuckle (Lonicera japonica) and Multiflora rose (Rosa multiflora) can negatively impact bigleaf snowbell. In the south, kudzu (Pueraria lobata) can pose a treat to Styrax grandifolius. Bigleaf snowbells are also susceptible to extreme cold and drought, however this usually only occurs in population that appear at the extreme margin of its range, for example, at higher elevations in South Carolina Bigleaf snowbell can be susceptible to flower bud freeze off in early spring. References grandifolius Flora of the United States