Sun flare Rose: History, Characteristics & How to Grow

Rosa ‘Sun Flare’ is a floribunda rose that was introduced into United States market by Jackson & Perkins in 1981. It is also known as the JACjem rose. This cultivar is a result of a cross between the ‘Amber Queen’ and the ‘Sutter’s Gold’ roses. It was bred by William Warriner 1979.

Sun Flare rose plant is a short bushy shrub about 3 to 4 ft tall. The blooms of ‘Sun Flare’ are large and double with pointed buds that open up to reveal a high-centered bloom. The petals are thick and velvety, with a lemon-yellow color. The flowers have a mild licorice fragrance and bloom intermittently in flushes throughout the growing season.

Sun Flare rose is hardy in USDA zones 6-10, which means that it can tolerate winter temperatures as low as -10 to 0 degrees Fahrenheit. In zones 6 and 7, the rose may experience some dieback during particularly harsh winters, but it should bounce back in the spring. In zones 8-10, where winter temperatures rarely drop below freezing, the rose should thrive with proper care.

The rose won a gold medal in Japan in 1981, Portland in 1982 and was named an All-America Rose Selections winner in 1983.

Facts About Sun Flare Rose

Facts and Data

Scientific NameRosa ‘Sun Flare’
Type of RoseFloribunda Rose
OriginUnited States
Year of Breeding1979  
Year of Introduction1981
BreederWilliam Warriner
Size3 to 4 ft 
FoliageGlossy, dark green
USDA Zones6-10
Marketing Names‘Sunflare’, ‘Sun Flare’ or ‘JACjem
AwardsGold medals in Japan (1981) and All-America Rose Selections winner in 1983.

How to grow and care for Sun Flare Rose


  • Choose a sunny location with well-drained soil. Roses generally prefer at least 6 hours of direct sunlight daily.
  • Plant the rose in a hole twice as wide and as deep as the root ball.
  • Ensure good air circulation around the plant to prevent diseases.


  • Provide well-draining soil enriched with organic matter.
  • Aim for a slightly acidic to neutral soil pH (around 6.0-7.0).


  • Keep the soil consistently moist, especially during the growing season.
  • Water at the base of the plant to avoid wetting the foliage.
  • Mulch around the base to retain moisture and suppress weeds.


  • Fertilize in early spring with a balanced rose fertilizer.
  • Follow package instructions for application rates and frequency.
  • Consider additional applications during the growing season if needed.


  • Prune in late winter or early spring before new growth begins.
  • Remove dead or diseased wood and shape the plant to maintain a balanced form.
  • Regularly deadhead spent blooms to encourage continuous flowering.

Disease Control:

  • Sun Flare Roses are generally disease-resistant, but it’s important to monitor for common rose diseases.
  • Provide adequate spacing for good air circulation.
  • If necessary, apply fungicides preventively, especially in humid conditions.


  • Monitor for pests like aphids, thrips, or spider mites.
  • Treat pest issues promptly using insecticidal soap or neem oil.


  • Hybrid tea roses like Sun Flare may benefit from support, especially if they produce large blooms.
  • Use stakes or other support structures to prevent bending or breakage in strong winds.

Winter Care:

  • Mulch around the base of the rose to protect the roots from freezing temperatures.
  • Consider additional winter protection, especially in colder climates.

Regular Inspection:

  • Regularly inspect the Sun Flare Rose for signs of stress, disease, or pests.
  • Early detection allows for timely intervention and better plant health.