Standard or tree roses are manufactured plants. The trunk section is grafted onto a hardy rootstock, and then the flowering part of the plant is grafted on top of that. Standard roses are not difficult to grow.
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Standard roses are heavy feeders. Use a fertiliser formulated for roses and follow package application directions. Rose fertilisers typically have a 1-2-1 or 1-3-1 NPK ratio. Container-grown tree roses need to be fertilised more often than those planted in the ground.
Insects and Diseases
Roses are prone to fungal diseases and sucking insects. Consider using a systemic rose product for protection all growing season. Systemic products are ready-made mixes of fungicide and insecticide that are applied to the root zone at regular intervals.
Prune standard roses in spring by removing dead or weak stems, then shape as desired. Remove suckers that grow up from the roots.
Protect a standard rose planted in the ground by digging a trench next to the plant. Loosen the plant's roots on the opposite side, then gently bend the plant down into the trench and secure it in place. Cover the plant with several inches each of soil and mulch. Container-grown tree roses overwinter best in a cool garage or basement.
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