Climbing Rose Rosa Sweet Syrie = 'Harwilling' (Cl)

Water

The Climbing Rose 'Harwilling', commonly known as Sweet Syrie, requires thorough watering to keep the soil evenly moist, especially during its active growth in the spring and summer. Establishing plants should be watered once or twice a week, depending on weather conditions, ensuring that the plant receives about 1 to 2 gallons per watering. Mature roses may need less frequent watering but it’s essential to avoid letting the soil dry out completely. During hot, dry periods, weekly watering may become necessary, providing the plant with up to 2 gallons of water each time to maintain adequate moisture levels. Adjust the watering frequency and amount depending on rainfall and temperatures, because over-watering can be as detrimental as under-watering.

Light

Climbing Rose 'Harwilling', or Sweet Syrie, thrives best in full sun, which means it should receive at least six hours of direct sunlight each day. The ideal spot for planting is a location where it can enjoy morning sun, which is less harsh than the afternoon sun and can help dry dew off the leaves, thereby reducing the risk of diseases. However, Sweet Syrie can tolerate some light afternoon shade, especially in hotter climates where some protection from the intense afternoon sun can prevent stress on the plant.

Temperature

Sweet Syrie, a variety of climbing rose, prefers moderate temperatures and is hardy in a range of climate conditions. It can typically survive winter temperatures as low as 20 degrees Fahrenheit but thrives best when the temperature is consistently between 65 and 75 degrees Fahrenheit. During the summer, it can tolerate heat up to about 90 degrees Fahrenheit but may need extra care if temperatures exceed this range. Ensuring good air circulation around the plant can help to maintain a cooler microclimate in excessive heat.

Pruning

Pruning the Sweet Syrie climbing rose is essential to encourage healthy growth and abundant blooms. It's best to prune in late winter or early spring, just before new growth starts, removing any dead, damaged, or diseased wood and thinning out crowded areas to improve air circulation. Typically, pruning should be done once a year, but the plant may also need occasional summer trimming to shape the plant or control its size. Removing spent flowers will also encourage the plant to produce more blooms.

Cleaning

As needed

Soil

For climbing roses like Rosa Sweet Syrie, a well-draining soil mix is crucial. Combine one-third each of loamy garden soil, compost, and coarse sand or perlite. The best soil pH range for these roses is slightly acidic to neutral, around 6.0 to 7.0.

Repotting

Climbing roses including the Rosa Sweet Syrie typically do not need frequent repotting and are often planted directly in the ground. However, if grown in containers, repotting every 2-3 years or when the plant outgrows its pot is advisable.

Humidity & Misting

Climbing roses like Rosa Sweet Syrie prefer moderate humidity levels but are adaptable to various conditions. They thrive best with average air humidity and do not require special humidity adjustments.

Suitable locations

• Indoor

  Provide bright light, ample water, and regular feeding.

• Outdoor

  Full sun, well-draining soil, and space to climb.

• Hardiness zone

  5-9 USDA

Life cycle

The life cycle of the climbing rose 'Harwilling', also known as Rosa 'Sweet Syrie', begins with germination, where seeds sprout after experiencing stratification, a process mimicking winter conditions. The seedlings develop into young plants with juvenile leaves. As the plants mature, they enter the vegetative stage, during which they grow stems, leaves, and thorns. Once the plant is mature enough, it enters the flowering stage, producing fragrant blooms usually from late spring to fall in cycles. After pollination, the flowers form rose hips (fruit), which contain the seeds, completing the reproductive cycle. Finally, the plant enters a period of dormancy during colder months, conserving energy for the next growing season.

Propogation

• Propogation time

  Spring to summer

• The Rosa Sweet Syrie 'Harwilling' (Cl), commonly known as the climbing rose, is best propagated through hardwood or semi-hardwood cuttings. The ideal time for taking cuttings is late fall or early winter, when the plant is dormant. To propagate from cuttings, one should select healthy, disease-free stems from the current or previous year's growth. These stems are then cut into lengths of 6 to 8 inches (about 15-20 cm), ensuring that each cutting has several nodes. The bottom cut should be made just below a node, and the top cut should be made just above a node to maximize the potential for root and shoot growth. The cuttings can then be dipped in rooting hormone powder to enhance root development, and planted in a well-draining soil mix. They should be kept in a humid environment with indirect light until roots develop, which could take several weeks.