Boxwood shrubs are popular for their dense foliage and versatility in landscaping. Choosing the right fertilizer can significantly enhance their growth, color, and overall health. In this article, we review the best fertilizers designed to nourish boxwood shrubs effectively. Below is a summary table highlighting the top products for growing vigorous, green, and beautiful boxwoods.
| Product | Brand | Type | Key Features |
|---|---|---|---|
| TOPBUXUS Boxwood Turbo Grow 1 lbs. | TOPBUXUS | Granular | Nutrient boost, fast-acting, root absorption |
| Complete Liquid Boxwood Shrub Plant Food 8 oz | TPS NUTRIENTS | Liquid | Dense foliage, healthy growth, easy instructions |
| Nelson NutriStar 21-6-8 Granular Fertilizer 4 lb. | Nelson Plant Food | Granular | Balanced nutrients, slow-release nitrogen, for trees & shrubs |
| Evergreen Fertilizer by Perfect Plants 32oz | PERFECT PLANTS | Slow-Release Granular | Micronutrients, 2–3 month feeding, vigorous roots |
| TOPBUXUS Boxwood Turbo Grow 10 lbs. | TOPBUXUS | Granular | Fast growth, root absorption, large coverage |
TOPBUXUS Boxwood Turbo Grow – 1 lbs. Professional Fertilizer

This granular fertilizer is specifically formulated for boxwood shrubs, providing essential nutrients that help promote accelerated growth. Its fast-acting formula is absorbed directly by the roots, offering a rapid nutrient boost to ensure healthy, dense foliage. Ideal for application on 100 square feet, it simplifies feeding requirements for both hobbyist gardeners and professionals.
- Granular formula tailored for boxwood plants
- Fast absorption by roots for quick effects
- Boosts shrub growth with balanced nutrients
Boxwood Fertilizer – Complete Liquid Shrub Plant Food by TPS NUTRIENTS

This liquid fertilizer offers a complete nutrient profile designed for thriving boxwood shrubs. It encourages dense foliage and promotes healthy growth throughout the season. The product comes with easy-to-follow care instructions, making it suitable for gardeners seeking a straightforward application process. Its liquid form ensures quick uptake and distribution throughout the plant.
- Complete formula to support shrub health
- Enhances leaf density and growth vigor
- Simple application with clear usage guidance
Nelson NutriStar 21-6-8 Granular Fertilizer for Trees & Shrubs

Featuring a balanced blend of nitrogen, phosphate, and soluble potash, this granular fertilizer supports long-term health for boxwoods and other shrubs. The product includes five nitrogen sources with varying release rates to provide consistent nourishment. It’s versatile, effectively feeding shrubs planted in-ground or containers, and helps maintain lush green foliage throughout the season.
- Contains 21% nitrogen, 6% phosphate, 8% potash
- Multiple nitrogen sources for steady nutrient supply
- Suitable for in-ground and container shrubs
Evergreen Fertilizer by Perfect Plants – Slow Release Granules

This slow-release fertilizer delivers nutrients gradually over 2–3 months with each watering, promoting sustained growth and deep root development. It includes essential micronutrients like calcium, boron, iron, and zinc, which are crucial for the year-round vibrant green color of boxwood shrubs and other evergreens. The granular form allows easy top dressing around shrub bases.
- Balanced nutrients with key micronutrients
- Slow-release formula feeds for 2 to 3 months
- Ideal for year-round shrub health and color
TOPBUXUS Boxwood Turbo Grow – 10 lbs. Professional Fertilizer

This larger volume of the TOPBUXUS Turbo Grow fertilizer provides the same fast-acting and root-absorbed nutrient boost as the smaller pack, but covers a wider area of 1,000 square feet. It’s practical for gardeners or landscapers with multiple shrubs, ensuring uniform growth and health across your boxwood collection.
- Granular formula concentrated for boxwood shrubs
- Absorbed swiftly by roots to stimulate growth
- Designed for large-area applications
Buying Guide for Boxwood Shrub Fertilizers
To select the best fertilizer for your boxwood shrubs, consider the following factors:
1. Fertilizer Type
Granular fertilizers are popular for their ease of application and slow-release properties, which feed plants over time. Liquid fertilizers provide a quick nutrient boost but may require more frequent use. Choose based on your gardening routine and desired feeding frequency.
2. Nutrient Content and Balance
Look for balanced fertilizers that provide adequate nitrogen to promote green, leafy growth, along with phosphorus and potassium to support root development and overall plant vigor. Some formulas include micronutrients like iron, calcium, and boron that enhance shrub health and color.
3. Release Rate
Slow-release fertilizers feed shrubs gradually, reducing the risk of nutrient burn and minimizing frequent applications. Fast-acting options provide quicker results but may need reapplication. Consider your preferred maintenance schedule and how quickly you want to see growth.
4. Specificity for Boxwoods
Choosing products specifically formulated for boxwood shrubs ensures the nutrient ratios are tailored for their unique needs. General shrub fertilizers can work but may not optimize growth and color as well.
5. Coverage Area
Match the fertilizer quantity to your garden size. Some packages are designed for small areas or container plants, while others cover larger landscapes with multiple shrubs.
6. Ease of Application
Granular products typically require spreading around the base of shrubs, while spikes offer a mess-free insertion method. Liquid fertilizers need mixing and spraying but allow for targeted feeding.
Evaluating these perspectives will help you select a fertilizer that keeps your boxwood shrubs lush, healthy, and vibrant throughout the growing season.