How to Care for Grandiflora Roses

Grandiflora roses grow up to 6-feet tall, forming upright bushes covered in large flowers on single stems. These roses combine the best qualities of hybrid tea and floribunda roses providing your garden with attractive, fragrant flowers. The roses provide your landscape with a continuous display of flowers because they bloom from the summer until the early fall. These hardy roses grow well in most climates and require minimal care, when compared to other rose bush varieties.

Mulch
Fertilizer
Pruning shears

Instructions

- 1
  Water the roses once weekly, providing 1 inch of water or enough to moisten the soil to a 6-inch depth. Apply water twice weekly during hot weather if the soil dries out quickly, as grandifloras do best in soil remaining evenly moist.
- 2
  Spread a 2-inch layer of pine straw, bark or leaf mold on the ground beneath the grandiflora bush, leaving a space between the mulch and the rose's stems. The mulch prevents soil temperature fluctuations and helps retain moisture.
- 3
  Fertilize grandiflora roses in monthly beginning from the first new growth in spring and continuing until September. Apply 3 tbsp. of 16-4-8 or another rose fertilizer blend to each rose bush. Sprinkle the fertilizer in a circle around the base of the plant. Water the area immediately after application.
- 4
  Remove the old blossoms from the bush as they begin wilting. Cut back the stems to within ¼ inch of a five-leaflet set. Grandifloras produce more blooms with regular old flower removal.
- 5
  Prune grandifloras lightly in late winter. Cut out any dead or damaged stems at the base with pruning shears. Dead branches develop a darker color than the live ones. Cut back overgrown branches to within ¼ inch of an outward facing leaf bud.

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