Climbing Nightshade Rosa Highgrove = 'Hornightshade' (Cl)

Water

Climbing roses, like Rosa 'Highgrove' require regular watering, especially during their growing season in the spring and summer. Water deeply once or twice a week, providing about 1 to 2 gallons per plant for each watering session, depending on weather conditions. Make sure the soil is moist but not waterlogged. During the hot, dry periods, increase the frequency; during the cooler months or rainy seasons, reduce it. It's important to water directly at the base of the plant to keep the foliage dry and prevent diseases.

Light

Climbing roses, such as Rosa 'Highgrove', thrive in full sun, which means they require at least 6 hours of direct sunlight daily. The best spot for these roses would be in an area where they receive morning sunlight, which is less harsh than the afternoon sun. However, they can also grow well with sunlight throughout the day as long as they are not exposed to prolonged periods of intense afternoon heat.

Temperature

Climbing roses like Rosa 'Highgrove' are quite hardy and can tolerate a range of temperatures, but they perform best in climates with temperatures between 55°F and 85°F. They can survive minimum temperatures down to about 20°F, but to thrive and produce abundant blooms, they prefer the warmer side of the spectrum. Avoid planting in sites where temperatures frequently drop below the hardiness zone recommendations or exceed 90°F as extreme temperatures can stress the plant.

Pruning

Climbing roses like Rosa 'Highgrove' require pruning to maintain their shape, encourage new growth, and improve air circulation. Prune in late winter or early spring, just as new buds begin to swell. Remove dead, damaged, or crowded stems to promote healthy growth and larger blooms. Climbing roses should be pruned lightly compared to other rose types, focusing mostly on removing old wood and any canes that do not contribute to the plant's structure.

Cleaning

As needed

Soil

The best soil mix for the climbing rose consists of well-draining loam enriched with compost and aged manure. The soil pH should be slightly acidic to neutral, ranging from 6.0 to 7.0. Good drainage is critical to prevent root rot and ensure healthy growth.

Repotting

Climbing roses such as the Highgrove Rose typically do not require frequent repotting as they are usually planted directly in the ground. If grown in containers, repotting may be necessary every 2 to 3 years to refresh the soil and accommodate root growth.

Humidity & Misting

Climbing roses prefer outdoor conditions with natural humidity levels. They are adaptable to a wide range of humidity but do best with average humidity levels, avoiding environments that are too arid or overly humid, which can foster diseases like powdery mildew.

Suitable locations

• Indoor

  Grow climbing roses indoors in large containers, bright light, and good air circulation.

• Outdoor

  Plant in full sun, well-draining soil, prune regularly, and provide a trellis.

• Hardiness zone

  5-10 USDA

Life cycle

The life of the Rosa 'Highgrove' (commonly known as the climber rose 'Highgrove') begins with seed germination, which takes place in a moist, well-drained soil environment with adequate sunlight. Once the seedling emerges, it enters the vegetative stage, developing a sturdy root system, foliage, and stems over several months. This is followed by the budding stage, where the plant prepares for flowering by developing buds at the tips of its canes. The reproductive stage sees the full bloom of fragrant flowers, typically in late spring through summer, which are then pollinated by insects or other agents. After pollination, the flowers produce hips (fruit), containing seeds that mature and, once fallen, can generate new plants, thus completing the cycle. The plant also enters a period of dormancy during winter, where growth slows down significantly until the next growing season.

Propogation

• Propogation time

  Spring-Early Summer

• Propogation: The Rosa Highgrove 'Hornightshade' (Cl), commonly known as a climbing rose, is often propagated through semi-hardwood cuttings. The best time for this method is in later summer or early fall when the plant's growth begins to slow and the stems are semi-ripe. To propagate by cuttings, one selects a healthy stem that has recently flowered, making a cut about 6 to 8 inches long just below a leaf node. The lower leaves are removed, and the cut end is dipped in rooting hormone to encourage root development. The cutting should be planted in well-draining soil mix, ensuring it is kept moist but not waterlogged, and ideally placed in a location with bright, indirect light. With proper care, the cutting will develop roots and eventually can be transplanted to its permanent location in the garden.