Invincible Rose Rosa Invincible = 'Runatru' (F)

Water

Rose bushes, including the Invincible rose, typically require watering once a week, but this can vary depending on weather conditions. During hot, dry periods, they may need water more frequently, such as twice a week. It's important to provide deep watering which means ensuring that the water reaches deep into the soil, about 18 inches down, encouraging the roots to grow deeply. A good rule of thumb is to provide about 1 to 1.5 gallons of water per plant during each watering session. Avoid overhead watering to minimize the risk of leaf diseases; instead, use a soaker hose or drip irrigation at the base of the plant.

Light

Rosa Invincible, commonly known as the Invincible rose, flourishes best in full sunlight. It requires at least 6 hours of direct sunlight daily to perform well. The ideal spot for planting is in a garden area that receives morning sun, which helps dry the dew on the leaves and prevent fungal diseases. Avoid overly shaded areas, as insufficient light can lead to poor bloom production and weak growth.

Temperature

The Invincible rose thrives in a range of temperatures, but it benefits from cool to moderate climates. Ideally, daytime temperatures should be between 65 to 75 degrees Fahrenheit, while at night it should not be colder than 40 degrees Fahrenheit. Rosa Invincible can survive in temperatures as low as 20 degrees Fahrenheit, but extended exposure to cold can damage the plant. Similarly, temperatures above 90 degrees Fahrenheit can stress the rose and might require additional care, such as mulching and extra watering.

Pruning

Pruning the Invincible rose is essential to maintain its health, encourage growth, and improve flowering. Prune early in the spring just as buds start to swell, removing dead, damaged or crowded stems to open up the plant to light and air circulation. Pruning is also the perfect time to shape the plant, keeping it at a manageable size and removing weak or spindly canes. Once-blooming roses should be pruned right after they finish flowering since they bloom on old wood, whereas repeat bloomers can be pruned in both spring and right after a flush of blooms to encourage more flowers.

Cleaning

As needed

Soil

Roses like Rosa 'Invincible' thrive in well-drained loamy soil with rich organic matter. The best soil mix includes equal parts of loam, peat moss, and perlite or coarse sand to ensure good drainage and aeration. The pH should be slightly acidic to neutral, ranging from 6.0 to 7.0 for optimal growth.

Repotting

It is not common to repot roses like Rosa 'Invincible' since they are typically planted outdoors. However, if grown in containers, they should be repotted every 2 to 3 years to refresh the soil and accommodate root growth.

Humidity & Misting

Rosa 'Invincible' prefers average outdoor humidity levels. As long as the plant has adequate water and is in well-draining soil, ambient humidity should generally not be a concern for this rose variety.

Suitable locations

• Indoor

  Ensure bright light, cool temps, and regular water.

• Outdoor

  Full sun, fertile soil, water well, prune annually.

• Hardiness zone

  4-9 USDA

Life cycle

The life of the 'Invincible' rose (Rosa 'Runatru' (F)) begins with germination, which occurs when a seed, given proper conditions of moisture and temperature, sprouts and produces a small seedling. As the seedling grows, it develops a root system and shoots that form leaves and stems, entering the vegetative stage where it focuses on growth and development. Once mature, the rose enters the flowering stage, producing distinctive flowers that attract pollinators for reproduction. After pollination, roses enter the fruiting stage, developing 'hips' that contain seeds to complete the reproductive cycle. Throughout its life, the rose will undergo periods of active growth in the spring and summer, followed by dormancy in the colder months, ready to repeat the cycle when conditions become favorable again. Finally, the rose reaches the end of its life cycle, which can vary in time depending on environmental conditions and care, eventually dying after potentially many years of growth and bloom cycles.

Propogation

• Propogation time

  Spring-Early Summer

• The Rosa Invincible 'Runatru', commonly known as the Invincible Rose, is typically propagated using semi-hardwood cuttings. The most popular method begins during the late spring to summer months when the rose has finished its first flush of blooms and the new growth has started to mature but is not entirely woody. You would select a healthy stem that has recently flowered, cutting it around 6 to 8 inches (15 to 20 centimeters) long, just below a leaf node. It's crucial to remove the bottom leaves and any flowers or buds from the stem to direct energy into root development. The cut end is then dipped in rooting hormone and inserted into a pot filled with a mixture of peat and perlite. The pot should then be covered with plastic to retain humidity and placed in indirect light. Maintaining a consistent moisture level in the medium is important, without letting the cutting sit in waterlogged soil, and roots usually develop within several weeks.