The ‘Rosa Alexander’, often called ‘Alexander’, is a popular Hybrid Tea rose that adds vibrant color to gardens. It is a favored choice for many gardeners due to its visual appeal and consistent performance, making it a desirable addition for a classic rose presence.
Characteristics of Rosa Alexander
The ‘Rosa Alexander’ rose is distinguished by its vibrant orange-red, double flowers, which typically measure about 5 inches in diameter. These blooms possess a mild fragrance. The plant grows as a vigorous, upright, thorny shrub, reaching 3 to 7 feet tall and spreading 30 inches to 4 feet wide. Its foliage consists of dark green, glossy leaves. This rose blooms continuously from summer into autumn.
Growing and Caring for Rosa Alexander
Planting
The best time to plant ‘Rosa Alexander’ is when the ground is not frozen or waterlogged. Bare-root roses are often planted between November and March while dormant. For container-grown plants, transplanting into the garden can occur in early June to avoid root damage. When preparing the planting site, dig a hole slightly wider than the root ball. Space plants about 18 to 24 inches apart.
Light Requirements
‘Rosa Alexander’ thrives in full sun, requiring at least six hours of direct sunlight daily for optimal growth and flowering. A location with ample morning sun is beneficial as it helps dry dew from the leaves, reducing fungal disease risk. While full sun is ideal, this rose can tolerate some partial shade, though bloom production might be less prolific.
Watering
Water deeply and regularly, especially during dry periods. Watering at the base of the plant, rather than overhead, helps prevent fungal issues by keeping the foliage dry. Established plants can tolerate some dry conditions, but consistent moisture promotes the best performance.
Soil and Fertilization
‘Rosa Alexander’ prefers moderately fertile, humus-rich, moist but well-drained soil. It adapts to various soil types, including chalky, clay, loamy, and sandy soils, and a pH range from acidic to alkaline. For best flowering, apply a balanced fertilizer in late winter or early spring, and again in early summer.
Pruning
Prune ‘Rosa Alexander’ in late winter or early spring before new growth begins. Remove any dead, damaged, or diseased wood. Cut healthy canes back by about one-third, making cuts at a 45-degree angle above an outward-facing bud. This encourages outward growth and improves air circulation, which helps reduce disease risk. Deadhead spent blooms throughout the summer to encourage continuous flowering.
Common Issues and Solutions for Rosa Alexander
‘Rosa Alexander’ is known for its good disease resistance, making it a relatively low-maintenance rose. However, it can still encounter common pests and diseases. Regular monitoring helps in early detection and treatment.
Aphids and spider mites are common pests. A strong spray of water can dislodge aphids, while insecticidal soaps or neem oil can manage more significant infestations. For diseases like black spot and powdery mildew, ensuring good air circulation through proper spacing and pruning helps significantly. Fungicides can be applied preventatively or at the first sign of fungal issues. Environmental stressors like hard freezes can cause canker or die-back, so protecting tender new spring growth in colder climates is beneficial.