Effect of Weed Competition on Growth of Container Grown Ornamentals Plants in Four Different Container Sizes

The objective of this study was to assess the growth two woody ornamental plants when subjected different levels weed competition in four container sizes, representing stages production. Ligustrum (Ligustrum lucidum W.T.Aiton) and Japanese holly (Ilex crenata Thunb.) liners were potted individually into 3.8 L, 11.4 24.7 56.8 L containers, respectively. Weed coverage 0%, 50%, 100% each size maintained by surface sowing seeds six common nursery species volume, based on media area pot. Results showed that shoot dry weight ligustrum at 50% reduced 28% 35%, 55% 56%, 41% 43%, 12% 14% 18% 22%, 51% 52%, 53%, 40% 53% indicate level similar across all weeds remained competitive even larger sizes.