Updated: July 22, 2023

The Tacoma plant, scientifically known as Polystichum munitum, is a popular fern that is native to the western regions of North America. It is commonly found in forests and woodlands, thriving in shady and moist environments. This hardy plant has gained popularity among gardeners for its unique appearance and ease of cultivation. One of the common questions asked by those interested in growing this fern is how quickly it grows. In this article, we will explore the growth rate of the Tacoma plant and provide some tips on how to promote its growth.

Understanding the Growth Pattern

Before discussing the growth rate of the Tacoma plant, it is important to understand its growth pattern. The Tacoma plant is a perennial fern, which means it lives for more than two years. It has a clumping habit, forming a cluster of fronds that can reach a height of 2 to 3 feet and a width of 2 to 4 feet. The fronds emerge from a central crown and grow outward in a circular fashion.

Growth Rate

The growth rate of the Tacoma plant can vary depending on several factors such as environmental conditions, soil quality, and care provided. On average, the Tacoma plant grows at a moderate pace, taking about 3 to 5 years to reach its mature size. During its initial years, the plant focuses on establishing a strong root system before putting energy into frond production.

In optimal conditions, the Tacoma plant can grow up to 6 inches per year. However, it is important to note that this growth rate may slow down if the plant is not provided with adequate moisture or if it is exposed to extreme temperature fluctuations. Additionally, young plants may take longer to reach their mature size compared to older ones.

Promoting Growth

To ensure healthy growth and development of your Tacoma plant, there are several factors you should consider:

1. Site Selection

Choose a suitable location for your Tacoma plant. It thrives in partial to full shade, making it an excellent choice for shaded areas in your garden. Avoid planting it in direct sunlight, as excessive heat can cause the fronds to wilt and lose their vibrant green color.

2. Soil Conditions

The Tacoma plant prefers moist and well-draining soil. Before planting, amend the soil with organic matter such as compost or peat moss to improve its water-holding capacity. Maintaining consistent soil moisture is crucial for the plant’s growth, so regular watering is essential, especially during dry spells.

3. Mulching

Applying a layer of organic mulch around the base of the plant helps retain soil moisture and regulate temperature. This also prevents weed growth, which can compete with the Tacoma plant for nutrients and water.

4. Fertilization

While the Tacoma plant does not require excessive fertilization, providing it with a balanced slow-release fertilizer in spring can promote growth. Avoid over-fertilizing, as it can lead to excessive foliage growth at the expense of root development.

5. Pruning

Regular pruning is not necessary for the Tacoma plant, as it naturally sheds old fronds over time. However, removing any damaged or diseased fronds can improve overall plant health and appearance.

6. Winter Protection

In regions with harsh winters, protecting the Tacoma plant from freezing temperatures is crucial. Applying a layer of mulch around the base of the plant and covering it with burlap or frost cloth can help insulate it from extreme cold.

Conclusion

The Tacoma plant is a beautiful fern that adds texture and interest to any garden or landscape. While it may not be the fastest-growing plant, its moderate growth rate allows for steady establishment and longevity. By providing the right growing conditions and care, you can ensure that your Tacoma plant thrives and enhances the beauty of your outdoor space for years to come.