knock out roses.. - Knowledgebase Question

coraopolis, Pe
Question by kavitha21m
March 26, 2010
am planning to have knockout roses in planter boxes in my deep and wide should the planter box be? how far should i keep one from another?

Answer from NGA
March 26, 2010


You can plant Knock Out roses in large containers or in a deep planter boxes. The planter can be any width you want but should be at least 18" deep to accommodate the roots. They can easily grow to be more than 3-4' wide x 3-4' tall. Periodic trims will keep at a smaller size. A once a year cut (to about 12-18" above the ground) in early spring (after the last hard frost) is also recommended for maximum performance.

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