Best Fertilizer for Crape Myrtles to Promote Vibrant Blooms and Healthy Growth 2025

Crape myrtles are popular flowering trees known for their stunning summer blooms and attractive bark. To keep your crape myrtles thriving, selecting the right fertilizer is essential. This article reviews the best fertilizers for crape myrtles available on Amazon, highlighting their features and benefits. Whether you prefer granular, liquid, or spike forms, our comprehensive guide will help you find an effective option to support your plants’ vibrant flowers and vigorous growth.

Product Name Brand Type Key Features
Carl Pool Crepe Myrtle Plant Food 24oz 8-55-7 UOOTPC Liquid Fast results, feeds through roots and leaves
Crape Myrtle & All Flowering Trees Granular Fertilizer (4 lb.) Nelson Plant Food Granular Designed for flowering trees and shrubs
Complete Liquid Crepe Myrtle Tree Plant Food, 8 oz TPS Nutrients Liquid Promotes vibrant blooms, strong branches
Natures Wisdom Crepe Myrtle Tree 8-55-7 Water Soluble Fertilizer Natures Wisdom Water Soluble Balanced nutrients, optimized for crape myrtles
BioAdvanced 12 Month Tree and Shrub Protect and Feed, Granules BioAdvanced Granular Slow-Release 12-month insect protection, slow-release nutrition

Carl Pool Crepe Myrtle Plant Food 24oz 8-55-7

Carl Pool Crepe Myrtle Plant Food

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This liquid fertilizer by UOOTPC is specifically formulated for crape myrtles, featuring a nutrient ratio of 8-55-7. It delivers essential nutrients rapidly, enhancing flowering and overall plant vigor. The product can feed plants through both roots and leaves, providing versatile application options. Customers report fast visible results in bloom intensity and plant health, making it a convenient choice for gardeners seeking prompt improvements. The 24oz bottle size suits multiple applications for sustained growth throughout the growing season.

Crape Myrtle & All Flowering Trees Granular Fertilizer (4 lb.)

Crape Myrtle Flowering Trees Granular Fertilizer

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This granular fertilizer by Nelson Plant Food is designed for crape myrtles and other flowering trees such as desert willow and mimosa. Its granular form allows for easy soil application, gradually releasing nutrients to roots where they are most effective. Suitable for indoor and outdoor container-grown plants as well, it supports healthy flowering and foliage development. Being a multi-purpose fertilizer, it benefits a range of ornamental trees and contributes to sustainable plant nutrition.

Complete Liquid Crepe Myrtle Tree Plant Food, 8 oz

Complete Liquid Crepe Myrtle Tree Plant Food

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TPS Nutrients offers a concentrated liquid fertilizer tailored for crape myrtle health. This nutrient formula encourages vibrant blooms and strong branch development, essential for ornamental appeal and plant robustness. The product includes easy-to-follow instructions for optimal use, ensuring effective and safe application. Its liquid form allows swift nutrient absorption and flexibility, making it ideal for gardeners wanting targeted nourishment throughout the growth cycle.

Natures Wisdom Crepe Myrtle Tree 8-55-7 Water Soluble Fertilizer

Natures Wisdom Crepe Myrtle Tree Water Soluble Fertilizer

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This water-soluble fertilizer features a balanced blend of essential nutrients specifically formulated to meet crape myrtle nutritional needs. It promotes superior blooms and foliage growth while being versatile enough for other flowering shrubs and vines such as hydrangeas, bougainvillea, and wisteria. The 8-55-7 nutrient profile emphasizes phosphorus for better flower production. Its water solubility ensures rapid uptake, making it convenient for routine feedings that sustain plant vitality.

BioAdvanced 12 Month Tree and Shrub Protect and Feed, Granules

BioAdvanced Tree and Shrub Protect and Feed Granules

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BioAdvanced’s slow-release granular fertilizer combines nutrition with pest protection for trees and shrubs, including crape myrtles. It provides up to 12 months of insect control, preventing infestations that can damage foliage and reduce flowering. Its systemic formulation protects plants from roots to leaves while steadily releasing nutrients that enhance overall plant health. This two-in-one feature is ideal for gardeners seeking both fertilization and pest management in a single application.

Buying Guide for Fertilizer for Crape Myrtles

Nutrient Composition

The ideal fertilizer for crape myrtles usually has a higher phosphorus (middle number) content, such as the common 8-55-7 ratio. Phosphorus promotes flowering and root development. Nitrogen supports leaf growth, and potassium aids overall plant vigor. Balanced blends are suitable for general health, while higher phosphorus ratios target bloom improvement.

Fertilizer Type

  • Liquid Fertilizers offer fast nutrient absorption and are easy to apply via soil or foliar feeding but may require more frequent use.
  • Granular Fertilizers provide slow to moderate nutrient release and are convenient for soil application with less frequent feeding schedules.
  • Water Soluble Fertilizers dissolve quickly for rapid uptake and flexible use but need regular watering.
  • Fertilizer Spikes deliver nutrients slowly over time, ideal for minimal maintenance and continuous feeding.

Additional Benefits

Some fertilizers, like BioAdvanced, combine feeding with pest control, protecting plants from harmful insects while enhancing growth. This dual function can save time and add value.

Application Convenience

Consider ease of use based on your gardening routine: sprays and water-soluble fertilizers allow for quick feeding, while granular and spike options require less frequent attention. Container-grown crape myrtles may benefit more from liquid or water-soluble types to ensure proper root absorption.

Plant Size and Growth Stage

Young crape myrtles may require gentler feeding with balanced nutrients, while mature trees benefit from bloom-enhancing formulas. Adjust fertilizer strength and frequency accordingly.