Crepe myrtles rely on steady nutrients to produce vibrant blooms and sturdy growth. Choosing the right fertilizer type—whether spikes for slow release or liquids for quick uptake—depends on your climate, soil, and tree size. Below are five well-regarded options that target crepe myrtle health, with guidance on how to apply them for best results. This guide helps you compare formulas, application methods, and expected effects to support year-round color and strong branches.
| Product | Type | N-P-K Ratio / Key Feature | Use Case |
|---|---|---|---|
| Miracle-Gro Tree & Shrub Plant Food Spikes (12 Spikes) | Spikes | 13-4-5 | Direct root feeding, long-lasting |
| Carl Pool Crepe Myrtle Plant Food 24oz (8-55-7) | Granular | 8-55-7 | Root and foliage feeding |
| TPS NUTRIENTS Complete Liquid Crepe Myrtle Tree Plant Food (8 oz) | Liquid | N/A | Fast-acting nutrient boost |
| Crepe Myrtle Fertilizer, Complete Liquid (32 oz) | Liquid | Balanced blend | Quick uptake for flowering |
| Natures Wisdom Crepe Myrtle Tree 8-55-7 (Water Soluble) | Water-soluble | 8-55-7 | Easy dilution and quick absorption |
Miracle-Gro Tree & Shrub Spikes for Crepe Myrtle
Miracle-Gro Tree & Shrub Plant Food Spikes are designed to deliver nutrition directly to a tree’s roots, making them a convenient option for crepe myrtles. Each spike releases nutrients gradually, helping support vibrant color, healthy foliage, and strong growth. This product is suitable for deciduous, flowering, and evergreen trees, and is particularly effective for acid-loving plants. Use as directed to avoid over-fertilization and to align with seasonal growth cycles.
Carl Pool Crepe Myrtle Plant Food 24oz (8-55-7)
This granular fertilizer from Carl Pool is formulated to drive strong growth and spectacular blooms in crepe myrtles. With a high phosphorus content (8-55-7), it emphasizes root development and flowering when applied according to package directions. It can feed through both roots and leaves, providing flexibility for gardeners tending multiple crepe myrtle specimens in a landscape or large container settings.
TPS NUTRIENTS Complete Liquid Crepe Myrtle Tree Plant Food (8 oz)
TPS NUTRIENTS offers a complete liquid formula designed for crepe myrtles. Liquid feeds are quickly absorbed by roots and foliage, enabling faster results after application. This product is convenient for irregular watering schedules or when rapid nutrient delivery is desired to support vibrant blooms and healthy branch growth.
Crepe Myrtle Fertilizer, Complete Liquid (32 oz)
This 32-ounce liquid fertilizer from TPS NUTRIENTS mirrors the complete nutrition concept for crepe myrtle trees. It supports blooming vigor and structural strength while offering straightforward application. Consider pairing with a seasonal watering plan to optimize nutrient uptake during peak growth periods.
Crepe Myrtle Fertilizer, Complete Liquid (1 Gallon)
This 1-gallon liquid fertilizer from TPS NUTRIENTS provides a scalable option for larger crepe myrtles or landscapes with multiple trees. The complete formula supports vibrant blooms and strong branches while offering the flexibility to adjust concentrations for young trees versus mature specimens. Follow label directions for optimal results and irrigation alignment.
Natures Wisdom Crepe Myrtle Tree 8-55-7 (Water Soluble)
This water-soluble fertilizer from Natures Wisdom is specifically optimized for crepe myrtles with an 8-55-7 blend. It blends easily with water for quick uptake, making it a good choice for gardeners who prefer wetting the foliage or applying via sprinkler systems. It also serves a broader role for other flowering trees, shrubs, and vines seeking balanced nutrition for enhanced blooms.
Leaves and Soul Crepe Myrtle Liquid Fertilizer
Leaves and Soul markets a professional-grade liquid formula tailored to crepe myrtles with a balanced 3-5-4 nutrient blend. The concentrate is designed for easy application and rapid absorption, supporting robust root development, foliage, and prolific flowering. Users appreciate its suitability for both indoor and outdoor use across a range of flowering plants.
Nelson Plant Food Crape Myrtle and Flowering Trees Granular Fertilizer NutriStar (4 lb)
Nelson Plant Food NutriStar is a granular option suitable for crepe myrtles and other flowering trees. It’s designed to be a multipurpose fertilizer suitable for container or landscape plantings. This product is a practical choice for gardeners seeking a versatile fertilizer with broad compatibility for various flowering species beyond crepe myrtle.
Buying Guide: Key Purchase Considerations for Crepe Myrtle Fertilizers
When selecting a crepe myrtle fertilizer, consider nutrient balance, release method, application ease, tree size, and local soil conditions. Here are the main perspectives to help you decide:
- Release Type: Spikes provide slow, steady feeding ideal for established trees with regular irrigation. Liquids and water-soluble formulas offer rapid uptake, suitable for correcting nutrient gaps or boosting blooms in mid-season.
- N-P-K Ratios: Higher phosphorus (the middle number) generally promotes flowering and root development, while balanced blends support overall growth. A ratio around 8-55-7 emphasizes blooms but ensure soil already has adequate phosphorus to avoid excessive buildup.
- Soil and Climate: In sandy or alkaline soils, acidic or balanced formulas can improve nutrient availability. In cooler climates with shorter growing seasons, quicker-acting feeds may help achieve visible bloom gains earlier.
- Tree Size and Spacing: Larger landscapes with multiple crepe myrtles may benefit from scalable liquids or granulars, while a single tree in a container might respond best to spikes or targeted granules around the drip line.
- Watering Practices: Fertilizer timing should align with irrigation. Avoid fertilizing during extreme heat or drought, and always follow label directions to prevent nutrient burn.
- Maintenance Schedule: A seasonal plan—early spring for initiation, mid-summer for peak flowering, and fall for preparation—helps sustain color and growth across seasons.
In practice, many gardeners opt for a combination approach: use slow-release spikes for ongoing support through the growing season, supplemented by a liquid feed during periods of rapid growth or heavy flowering. Always start with a soil test if possible to tailor the nutrient mix to your crepe myrtle’s specific needs.