The best crepe myrtle tree fertilizer depends on whether you want a targeted flowering-tree formula, a liquid feed, or a slow-release general fertilizer. The Nelson NutriStar granular formula is best suited to buyers seeking fertilizer specifically labeled for crape myrtles and other flowering trees. TPS Nutrients offers liquid options in two sizes, while Carl Pool is a water-soluble choice described as feeding through roots and leaves. A balanced 10-10-10 formula may suit gardeners who want one product for multiple plant types.
| Product | Format | Best suited for |
|---|---|---|
| Nelson NutriStar 10-15-9 | Granular | Flowering trees, including crape myrtles |
| TPS Nutrients 32 oz | Liquid | Buyers wanting a larger listed bottle |
| Carl Pool 8-55-7 | Water-soluble | Root-and-leaf feeding |
| TPS Nutrients 8 oz | Liquid | Buyers wanting a smaller listed bottle |
| GARDENWISE 10-10-10 | Slow-release granules | Multi-purpose garden feeding |
Nelson NutriStar Flowering Tree Fertilizer
Best for: Gardeners seeking a granular product formulated for flowering trees, including crape myrtles. Its listed NPK ratio is 10-15-9, and the formula includes sulfur, copper, iron, manganese, and zinc.
The product description identifies five nitrogen sources with different release characteristics and says the fertilizer is designed to support bloom quantity and size. It is also described for new or established in-ground and container-grown flowering trees, giving it broader use across planting setups.
Limitation: This is a 2-pound granular product, so it may be less convenient than a liquid option for shoppers who prefer mixing a concentrate with water. Follow the package directions for application.
TPS Nutrients Liquid Fertilizer, 32 Oz
Best for: Buyers who want a liquid fertilizer marketed specifically for crepe myrtles and prefer the larger of the two listed TPS bottle sizes. Its product features describe support for colorful blooms, root development, and steady tree growth.
The formula is presented for outdoor trees in yards and decorative landscapes. Choose this if you want a targeted liquid plant food rather than a general-purpose granular fertilizer. The 32-ounce size may be a practical fit when a smaller bottle is not the preferred option.
Limitation: The supplied product details do not state an NPK ratio or application rate. Check the product label for mixing and feeding instructions before use.
Carl Pool Water-Soluble Crepe Myrtle Food
Best for: Buyers looking for a water-soluble crepe myrtle food with a prominently listed 8-55-7 NPK ratio. The product description says it feeds through roots and leaves and advertises fast results.
This 24-ounce option may be a better fit than a granular feed for gardeners who want a water-soluble format. Its stated nutrient ratio distinguishes it from the balanced 10-10-10 product and the 10-15-9 flowering-tree fertilizer.
Limitation: The provided details do not include full application directions or explain the advertised results. Read the packaging for dilution, frequency, and appropriate use.
TPS Nutrients Liquid Fertilizer, 8 Oz
Best for: Buyers who want the targeted TPS liquid formula in the smaller listed bottle size. The description says it supports colorful flowering, healthy roots, and steady growth, and identifies it for landscape and garden trees.
Choose this if you prefer a liquid product marketed specifically for crape myrtles but do not need the listed 32-ounce size. Its stated uses make it relevant to outdoor trees in yards and decorative landscapes.
Limitation: The smaller bottle contains less product than the 32-ounce TPS option. The provided details do not specify nutrient analysis or application amounts.
GARDENWISE Slow-Release 10-10-10 Fertilizer
Best for: Gardeners who want one balanced fertilizer for several plant types, rather than a product labeled specifically for crape myrtles. The granules contain 10% nitrogen, 10% phosphorus, and 10% potassium, and the listing describes up to eight weeks of sustained nutrition.
The product is presented for plants such as shrubs, flowers, fruit trees, and vegetables. It may suit a mixed garden where convenience and broad use matter. The listing suggests applying twice per season for gardens and three times per year for trees and shrubs; follow the package directions for the specific plant and application.
Limitation: Unlike the Nelson and TPS choices, this is an all-purpose formula rather than one marketed specifically for flowering trees or crape myrtles.
Buying Guide: How To Choose Crepe Myrtle Fertilizer
Should you choose a flowering-tree formula or general fertilizer?
A product labeled for crape myrtles or flowering trees, such as Nelson NutriStar, offers a more targeted choice. A general 10-10-10 fertilizer can be useful when you also need to feed other garden plants, but its broad-purpose positioning is less specific to crape myrtles. Compare the stated NPK analysis and intended plants instead of assuming that all fertilizers work the same way.
Do you prefer liquid, water-soluble, or granular fertilizer?
- Liquid: The TPS products are marketed as liquid plant food. Choose between the 8-ounce and 32-ounce sizes based on the amount you want to purchase.
- Water-soluble: Carl Pool is described as feeding through roots and leaves. Check its label for dilution and use instructions.
- Granular: Nelson NutriStar and GARDENWISE are granular options. GARDENWISE specifically describes a slow-release formula.
What details should you check before applying it?
Read the label for the correct amount, timing, and method for your tree and growing conditions. Compare NPK values when they are listed, and avoid guessing at a dose when product directions are unavailable. The product descriptions provided here do not give complete application instructions for every option.
Frequently Asked Questions
What is a good fertilizer choice for crape myrtles?
Nelson NutriStar is specifically described for crape myrtles and flowering trees. Its listed analysis is 10-15-9, with additional listed micronutrients.
Is liquid fertilizer available for crepe myrtle trees?
Yes. TPS Nutrients lists liquid crepe myrtle fertilizer in 8-ounce and 32-ounce sizes.
Can I use a general 10-10-10 fertilizer?
GARDENWISE lists its 10-10-10 product for shrubs, flowers, trees, and other plants. Follow the product label and consider whether a general formula suits your gardening needs.
Which product is described as slow-release?
GARDENWISE describes its granular 10-10-10 fertilizer as slow-release and says it provides up to eight weeks of sustained nutrition.
Do these product details provide application rates?
No complete application rates are provided for every product in the supplied details. Check each package for dosage, dilution, and timing instructions before applying fertilizer.