Rosa Mainzer Fastnacht So Amazing Flower

Rosa ‘Mainzer Fastnacht’ — A Regal Lavender Rose with a Carnival Soul.
If there’s one rose that perfectly blends aristocratic elegance with festive spirit, it’s the Rosa ‘Mainzer Fastnacht’, also known internationally as ‘Blue Moon’. This stunning hybrid tea rose is a showstopper in any garden, not only for its striking color but also for its rich fragrance and historical charm.
Origins and Name
Introduced in 1964 by German rose breeder Mathias Tantau Jr., ‘Mainzer Fastnacht’ gets its name from the famous Mainz Carnival, one of Germany’s most celebrated and colorful events. While the rose itself exudes refinement, its name pays homage to the joy, festivity, and exuberance of the carnival. It’s a delightful contrast: an elegant bloom inspired by riotous celebration.
The Color That Captivates
One of the most distinctive features of this rose is its unique lavender to silvery-lilac hue. While not truly blue, ‘Blue Moon’ comes as close as nature allows, giving off a cool-toned, dreamy appearance that makes it stand out in any bouquet or bed. The petals are velvety and perfectly formed, often appearing in that classic high-centered hybrid tea style.
Its changing hues throughout the blooming cycle—from deep lilac to soft silvery blue—add dynamic interest to the garden. In the right light, it almost seems to glow.
Growth Habits and Care
‘Mainzer Fastnacht’ is a bushy, upright hybrid tea rose that typically reaches about 3 to 5 feet tall with a spread of 2 to 3 feet. It is a repeat bloomer, rewarding gardeners with flushes of flowers from late spring into the fall.
Key Growing Info:
Sun: Full sun
Soil: Rich, well-drained soil with good organic matter
Water: Regular watering, keeping soil evenly moist
Pruning: Early spring pruning encourages strong new growth and abundant blooms
Hardiness: USDA Zones 6–9
While not the most disease-resistant of roses, it performs well with a good care routine, particularly if planted in a location with good air circulation to prevent fungal issues.