summary：

Japanese Marie Rose is a delicate and weak-growing variety that requires special care. With proper maintenance, a small sapling can grow to a height of 30-50 cm and a crown width of 30-40 cm in a year. However, if not cared for properly, the plant might stagnate or even die.

Key Points for Growing Japanese Marie Rose

1. Soil

Japanese Marie Rose is highly susceptible to waterlogging. If the soil lacks good aeration, the plant is likely to stagnate. When planted in the ground, Marie Roses often fail because the garden soil does not provide sufficient aeration.

Tip: Use well-draining soil to avoid waterlogging. Consider mixing in perlite or sand to improve soil aeration.

2. Watering

Watering should be based on the soil's moisture level. Over-watering can easily lead to plant stagnation.

Tip: Water sparingly and only when the top layer of soil feels dry. Over-watering can cause root rot and other issues.

3. Fertilizing

Japanese Marie Rose has weak roots and slow growth. Generally, adding slow-release fertilizer like Osmocote to the potting soil can meet most of the plant's growth needs. For faster growth, you can add a liquid fertilizer like Flower Plus when watering.

Tip: Avoid over-fertilizing as it can damage the plant's roots. A balanced approach to fertilizing will promote healthy growth.

4. Pruning

Avoid unnecessary pruning. Every branch is valuable, and the best time to adjust the plant's shape is after it enters dormancy in the fall.

Tip: Be gentle with pruning and only do it when necessary. Over-pruning can stress the plant and stunt its growth.

5. Pest and Disease Control

Japanese Marie Rose is very prone to black spot disease, which can be severe and hard to treat once it sets in. Preventive measures are crucial.

Tip: Regularly inspect the plant for signs of disease and treat promptly. Using fungicides preventively can help manage black spot.

Challenges of Growing Japanese Marie Rose

Japanese Marie Rose is notoriously difficult to grow, earning its place as one of the "four demon flowers" in the gardening community. Despite its popularity and beauty, many gardeners are deterred by its challenging care requirements. Often, enthusiasts buy the plant, only to give up after a few months due to its demanding nature.

Conclusion:

Growing Japanese Marie Rose can be a rewarding experience, but it requires patience and meticulous care. By paying attention to soil quality, watering practices, fertilizing, pruning, and pest control, you can help your Japanese Marie Rose thrive and reach its growth potential. Remember, while it is a challenging plant to grow, the effort is worth it for the beautiful blooms and the satisfaction of overcoming its growing challenges.

In summary, the Japanese Marie Rose can reach a height of 30-50 cm and a crown width of 30-40 cm within a year under optimal care conditions. While its care can be demanding, following the guidelines for soil, watering, fertilizing, pruning, and pest control can make a significant difference in the plant's health and growth. Despite its difficulty, with dedication and proper care, you can successfully grow this stunning variety of rose and enjoy its unique beauty.