Will knockout roses grow well in pots rather than the ground? What size pots are best according to the size of the plant?
Certified GKH Gardening Expert
Knockout roses can do quite well in pots. I would not use a pot less than 18 to 20 inches in diameter and at least as deep as a five gallon bucket. I like to give the root system lots of room to spread out. I have some rosebushes and a rose tree planted in some of those rope handled storage buckets or tubs, like found at this link: http://www.agrisupply.com/product.aspx?p=89202&sid=bsf10&eid=Ebsf10&utm_source=bing&utm_medium=cpc&utm_campaign=NB_PLA_AllProducts_BING&zmam=77232640&zmas=1&zmac=2&zmap=89202&utm_content=0CU9k6LK_dc|pcrid|11231445313|pkw||pmt|| I drill holes in the bottom for drainage and put a layer of 3/4" gravel in the bottom to help the overall drainage work well. I place the tubs on a couple pieces of redwood or treated wood, again to allow a free and open drainage area. The tubs are way less costly than some pots. With today's spray paints that work on such plastic materials I can even paint them up with different colored bands or designs to give them a bit of character if I so choose. I use a good amended bagged garden soils mix or potting soil from EKO or Miracle Gro for the planting soils.