How to Grow Blue Roses Plant - Plant Care & Tips

By NorwichGardener Team   /   2025

Blue roses is a plant that has blue flowers. It is a beautiful plant that can add color to any garden.

How to Grow Blue Roses Plant - Plant Care & Tips

Also called

  • Royal blue roses
  • Blue eyed roses
  • Blueberry roses
  • Blue moon roses
  • Lavender roses

Things to Know

  • Blue roses are not a naturally occurring rose color.
  • Blue roses are created through genetic engineering or dyeing.
  • Blue roses typically symbolize mystery, or sometimes melancholia.
  • The blue rose was popularized in the early 1800s by Empress Josephine of France.
  • In the language of flowers, blue roses often carry a meaning of "unattainability".
  • In the traditional rose color wheel, blue roses would be located at the very bottom, opposite of orange roses.
  • Blue roses are often used in wedding bouquets and other arrangements because of their elegant color.
  • Because blue roses are not a naturally occurring color, they can be quite pricey.
  • Blue roses often have a shorter lifespan than other colored roses.
  • Blue roses are a beautiful and unique addition to any garden or bouquet.

Related plant:
Buddleja Davidii Nanho Blue

How to Grow

  1. For blue roses , first step is to grow the roses in well-drained, slightly acidic soil in an area that receives full sun.
  2. The soil should be amended with organic matter such as compost or manure to improve drainage and fertility.
  3. Roses require regular watering, especially during hot, dry weather.
  4. Apply a layer of mulch around the plants to help retain moisture and suppress weeds.
  5. Fertilize the plants every month with a balanced fertilizer such as 10-10-
  6. To encourage more blooms, deadhead the flowers regularly.
  7. To discourage disease, water the plants at the base instead of wetting the foliage.
  8. Inspect the plants regularly for signs of pests or diseases and treat accordingly.
  9. For blue roses, special blue varieties must be purchased.
  10. The plants may need to be pruned annually to encourage new growth and flowering.

Related plant:
Blue Hydrangea Flowers

Soil Condition

About soil condition, blue roses require soil that is not overly wet and that has good drainage. The soil should also be slightly acidic with a pH between 6.0 and 6.5. If your soil is not naturally acidic, you can add sulfur to lower the pH.

Light condition

Just like other roses, blue roses need at least six hours of sunlight each day in order to flourish. They also need well-drained soil and regular watering. However, blue roses are notoriously difficult to grow and often require special care. If you're up for the challenge, you can try growing blue roses in your garden. With a little bit of effort, you just might be rewarded with these beautiful and unique flowers.

The Temperature

The temperature condition of blue roses is relatively cool compared to other flowers. When placed in a vase, blue roses should be kept in a cool spot, out of direct sunlight. Blue roses are also known to be one of the longest lasting flowers, with a vase life of up to two weeks.

Humidity Level

Ideal humidity condition for this plant is around 60-70%. The plant does not like to be in standing water, so make sure the pot has proper drainage. You will know the plant is not happy if the leaves start to turn yellow or drop off.

The Fertilizer

Mentioning fertilizer, this kind of plant need more attention in term of taking care of it. The plant need to be feed by fertilizer to help it grow. The fertilizer that we need to use is full of nitrogen, phosphorus and potassium. With this, the plant can grow strong and healthy. What is more, we need to ensure that the plant has enough water and sunlight.

About light

Pruning is an important part of keeping your blue roses healthy and vibrant. Cut back the canes by about one-third after the flowers fade. This will encourage new growth and help to keep the plant compact and bushy.

Plant Propagation

Propagation is the process of creating new plants from a single plant or a few plants. Blue roses can be propagated from stem cuttings, which is a common method for propagating many types of roses. To propagate blue roses from stem cuttings, first take cuttings from the desired plant in early spring. The cuttings should be 4-6 inches long and should have at least two leaves. Dip the cuttings in rooting hormone and plant them in a pot filled with moistened potting mix. Place the pot in a warm, sunny location and keep the soil moist. The cuttings should root within 4-6 weeks.

Growth Rate

Usually, the plant growth rate is relatively slow compared to other roses. They tend to produce fewer flowers and have a shorter flowering season. Consequently, they are not as widely cultivated as other rose varieties.

Common Problems

Common problems for this kind of plant are pests, diseases, and environmental stress. Pests like aphids, mites, and whiteflies can infest the plant and suck out its sap, weakening it. Diseases like black spot, powdery mildew, and rust can also attack the plant, causing leaves to fall off and the plant to become stressed. Environmental stress from too much sun, wind, or cold can also damage the plant.

List to Know

  • Remember to give your blue roses plenty of sunlight. They need at least six hours of sun each day in order to thrive.
  • Be sure to water your blue roses regularly. They should be kept moist, but not soggy.
  • Fertilize your blue roses every few weeks using a high-quality fertilizer.
  • To encourage blooming, deadhead spent flowers regularly.
  • Protect your blue roses from extreme heat or cold. They will do best in a sheltered spot.
  • Keep an eye out for pests and diseases. If you see any, treat them immediately.
  • Prune your blue roses annually to encourage new growth.
  • Divide your blue roses every few years to keep them healthy and vigorous.
  • Enjoy the beauty of your blue roses!
  • Keep in mind that blue roses are relatively fragile. Handle them with care.

Substitution

  • Alcea rosea
  • Amana brassaia
  • Barbarea verna
  • Brassaia actinophylla
  • Brassaia arboricola
  • Brassaia excelsa
  • Brassaia spp.
  • Brassaiopsis glomerulata
  • Caesalpinia gilliesii
  • Caragana rosea

Source:
Blue roses — a pigment of our imagination? - Academia.edu
Rose: Identify and Manage Problems | University of Maryland …
Rose Insects & Related Pests | Home & Garden Information Center

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