10 Best Fertilizer For Crepe Myrtles 2025 in the United States

Miracle-Gro Water Soluble All Purpose Plant Food is a versatile fertilizer designed for a variety of plants, including flowers, vegetables, trees, shrubs, and houseplants. It aims to promote rapid growth and vibrant results. One of its significant strengths is the NPK ratio, which is well-balanced for general plant health but may not be specialized enough for specific needs like crepe myrtles.

This fertilizer is synthetic, meaning it provides quick results, but some gardeners might prefer organic options for a more natural approach. It contains essential micronutrients, which are beneficial for plant health. The application frequency is convenient, allowing for flexible use both indoors and outdoors with varying amounts depending on the plant type. It’s easy to apply using a watering can or the Miracle-Gro Garden Feeder, making it user-friendly even for those new to gardening.

However, the broad application might not meet the specific requirements of crepe myrtles as precisely as a specialized fertilizer would. Additionally, while the product supports substantial coverage, which is excellent for large gardens, it may be more than needed for smaller spaces. In conclusion, this product is effective for a wide range of plants but might not be the most targeted choice for crepe myrtles if you're looking for a fertilizer that caters specifically to their unique needs.

Osmocote Smart-Release Plant Food Plus is a versatile fertilizer ideal for both indoor and outdoor plants, which makes it suitable for a wide range of gardening needs, including crepe myrtles. The product has a balanced NPK ratio of 15-9-12, providing ample nitrogen, phosphorus, and potassium, essential for promoting healthy growth and vibrant blooms in crepe myrtles. This fertilizer is synthetic and comes in granule form, making it easy to apply either by mixing into the soil or sprinkling around the plants.

One of its main advantages is its long-lasting effect; a single application can feed plants for up to six months, reducing the need for frequent reapplication. This is particularly beneficial for those who prefer low-maintenance gardening. The inclusion of 11 essential nutrients and secondary nutrients ensures that plants receive a comprehensive diet, which can help in preventing nutrient deficiencies. The Osmocote package is also quite substantial, with 8 lbs (or approximately 8 liters) covering about 300 square feet, making it a cost-effective choice for larger garden areas.

However, it's important to note that this product is synthetic, which may not appeal to organic gardeners who prefer natural options. Additionally, while it is easy to apply, precise measurement is necessary to avoid over-fertilization, which can harm plants. For best results, it is recommended to follow the application instructions carefully, ensuring the granules are well-mixed into the top layer of soil and the area is watered regularly. In summary, Osmocote Smart-Release Plant Food Plus is a practical and efficient choice for fertilizing crepe myrtles, particularly for those looking for a long-term feeding solution.

Miracle-Gro Shake 'N Feed All Purpose Plant Food is a versatile option for feeding your crepe myrtles, whether they are in-ground or in containers. This fertilizer has an NPK ratio suitable for a wide range of plants, delivering essential nutrients for up to three months. A notable strength is its inclusion of vital micronutrients, which can help your plants become stronger and more vibrant compared to unfed plants.

Another advantage is its ease of use; you simply apply it to the soil and work it in lightly, followed by regular watering. This makes it convenient for both novice and experienced gardeners. Additionally, the product's ability to feed both the soil and the plants above it ensures comprehensive nourishment.

This is a synthetic fertilizer, which may not appeal to those looking for organic options. Also, the granule form means that it needs to be worked into the soil, which might be a bit labor-intensive for some users. Reapplication every three months is required to maintain its effectiveness, which might be a drawback for those seeking a more long-term solution. Despite these points, Miracle-Gro Shake 'N Feed's balanced nutrient profile and ease of application make it a solid choice for feeding crepe myrtles and a variety of other plants.