Does Japanese forest grass need fertilizer?

Japanese forest grass, also known as Hakone grass, is a beautiful ornamental grass that adds a touch of elegance to any garden or landscape. When it comes to fertilizing this plant, the good news is that it doesn’t require much. In fact, other than a layer of compost, Japanese forest grass needs no other fertilizer if planted in rich, fertile soil. This is because it is adapted to growing in the forest understory where it receives a natural supply of nutrients from decaying organic matter.

If your soil is already rich and fertile, you can simply spread a layer of compost around the base of the plant in early spring. Compost is a natural and slow-release source of nutrients, providing a balanced supply of nitrogen, phosphorus, and potassium, as well as trace elements. It also improves soil structure and moisture retention, which can benefit the overall health of the plant.

Applying a balanced slow-release fertilizer once in the spring when the new growth starts can also be an option, but it is not always necessary. Slow-release fertilizers provide nutrients over an extended period of time, reducing the risk of over-fertilization. However, it is important to follow the instructions on the fertilizer packaging and avoid applying more than the recommended amount. Over-fertilization can lead to excessive leaf growth and weak stems, making the plant more susceptible to disease and pests.

In my personal experience, I have found that Japanese forest grass thrives in soil that is rich in organic matter. When I first planted it in my garden, I prepared the soil by incorporating compost and ensuring it was well-draining. Since then, I have only added a layer of compost in the spring, and the plant has continued to flourish without any additional fertilizer.

Japanese forest grass does not require much fertilizer if planted in rich, fertile soil. A layer of compost in the spring is usually sufficient to provide the necessary nutrients for healthy growth. However, if your soil is lacking in nutrients, a balanced slow-release fertilizer can be applied once in the spring. Remember to follow the instructions and avoid over-fertilization.

Photo of author

Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.