Can I Plant a Rose Tree in a Container?
Tree roses grow foliage and flowers atop a tall trunk. These roses consist of bush varieties grafted to the trunk of an upright rose. They come in all the flowering and color varieties of bush roses, including grandiflora, floribunda, miniature and hybrid tea types. Tree roses grow well in containers if planted and cared for correctly. Does this Spark an idea?
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Container and Site
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Tree roses grow best in a 6- to 10-gallon planter that has drainage outlets on the bottom. Placing the container in a suitable site prior to planting helps you avoid moving the heavy planter around afterward. Roses need a location that receives at least six hours of daily sunlight. Locations protected from heavy winds protect tree roses from breakage and help prevent the soil from drying out too quickly.
Soil and Fertilization
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Potting soils containing at least 50 percent organic matter, such as compost or peat, provide a rich, well-drained medium for the roses. Set tree roses in the soil-filled containers so the graft union is at the soil surface. A stake helps keep the trunk straight as the rose grows. Potting mixtures that include a fertilizer do not require fertilization for two months. A soluble fertilizer formulated for roses applied at 25 percent of the label-recommended rate weekly in spring and summer provides the nutrients necessary for the tree rose's health.
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Water Needs
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Container-grown tree roses may need daily watering in summer, when heat and sun dries the soil more quickly. When the top inch of soil feels dry, the roses need watering. When the irrigation water begins draining from the bottom of the pot, the soil is thoroughly moistened throughout. Mulching over the top of the container with straw or planting annual flowers as a living mulch helps retain moisture by preventing rapid evaporation.
Winter Protection
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The graft union on tree roses combined with the colder conditions in a container as opposed to a bed makes tree roses more prone to freeze damage. Moving the containerized plants to an unheated garage or other protected area during the winter months improves the rose's chances of survival. If you must place them in an uncovered area, covering the plants with burlap helps prevent some wind and cold damage.
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