One plant per pot is sufficient for all pot sizes. Maintain temperatures at 50F to 65F with light levels at 1,500 to 1,800 footcandles. Topdress with a low to medium rate of slow-release fertilizer. Finishes four to six weeks faster in a 6-inch pot than other calathea varieties.
Plants look good alone or in a combination planter.
Aside from the color difference, 'Corona' was larger than other plants on the bench. The company sought the opinion of Central Florida growers who recommended 'Corona' be put into commercial production. No growth retardants are required. Plants have very few pest problems. Control two-spotted spider mites with Avid or Sanmite.