How to Care for Bleu Magenta Rose


The Bleu Magenta is a climbing "rambler" rose bush that produces 2-inch wide blooms that are red when they first open, changing to deep purple and then to a dark violet during the course of three or four weeks in the spring and summer. This hardy, disease-resistant and shade-tolerant rose bush is a vigorous grower, reaching a mature height of 10 to 15 feet. The Bleu Magenta rose is thornless and hardy down to USDA Zone 5, meaning that it can tolerate winter temperatures to minus 15 degrees F.

Bleu Magenta Care Tips

Step 1

Water the Bleu Magenta deeply once or twice each week to supplement rainfall during the growing season. Water the rose bush in the morning to prevent fungal diseases.

Step 2

Spread a 1- to 2-inch layer of organic compost, aged manure or leaf mold (humus) on the ground over the root zone area. Spread a fresh layer each year in the spring.

Step 3

Feed the rose bush twice each year, in early spring right after you prune the plant and again in July after the flowers begin to fade. Scatter a handful of commercial rose fertilizer around the base of the plant and water the soil thoroughly.

Step 4

Prune the Bleu Magenta rose bush in the late winter or early spring, after the last frost has passed but before new growth emerges. Prune away all dead, weak, weedy or crowded growth.

Training Your Bleu Magenta

Step 1

Grow the Bleu Magenta along a fence or wall, or erect a trellis beside the rose plant for it to climb. Train the Bleu Magenta during September or October each year.

Step 2

Secure wires stretched along the fence, wall or trellis, with the bottom-most wire about 24 inches from the ground. Stretch three more wires, about 2 feet apart, up the structure.

Step 3

Tie the climbing stems and shoots to the wires using string or soft twine. Arrange the branches so they fan out horizontally along the wires.

Step 4

Train the vertical-growing stems up to a higher wire, selecting only the stronger stems and pruning away all the other vertical shoots. Prune the weaker vertical shoots back to about ½-inch from the horizontal stem.

Tips and Warnings

  • Don't encourage too much vertical growth in a Bleu Magenta or it could end up as a tall rose plant that has only a few blooms at the top.

Things You'll Need

  • Garden hose
  • Organic compost, aged manure or leaf mold
  • Rose fertilizer
  • Pruning tools
  • Trellis (optional)
  • Wire
  • String or soft twine
  • Insecticidal soap (optional)


  • Rogue Valley Roses: Bleu Magenta
  • Garden Roses: How to Grow Garden Roses

Who Can Help

  • David Austin Roses: Bleu Magenta
Keywords: Bleu Magenta rose care, rambler rose care, grow Bleu Magenta roses

About this Author

Sarah Terry brings 10 years of experience writing novels, business-to-business newsletters, and a plethora of how-to articles. Terry has written articles and publications for a wide range of markets and subject matters, including Medicine & Health, Eli Financial, Dartnell Publications and Eli Journals.