Grow More® Soluble Palm Food 15-5-15 — 1.5 lb Jar

Extra Magnesium and Acid-Forming Ingredients Aimed at Common Palm Deficiencies

Two problems show up again and again in palm care: magnesium runs short before most growers notice, and alkaline soil locks up the micronutrients palms need to stay deep green. Grow More Soluble Palm Food 15-5-15 addresses both directly, building extra magnesium into a balanced NPK base and adding acid-forming ingredients that help lower root-zone pH so iron, manganese, and zinc stay available instead of getting chemically locked out.

The 15-5-15 ratio also carries enough potassium to support root development and disease resistance, rounding out a feed built for landscape and container palms working through less-than-ideal soil conditions.

Key Features & Benefits

• 15-5-15 NPK Ratio: Balanced nitrogen and potassium with moderate phosphorus, supporting both vegetative growth and root structure.
• Extra Magnesium: Targets the widespread palm magnesium deficiency that causes yellowing of lower fronds progressing upward.
• Acid-Forming Ingredients: Helps lower root-zone pH so iron, manganese, and zinc stay available in alkaline palm-growing soils.
• Supports Root Strength and Disease Resistance: The potassium level in this ratio strengthens cell walls and improves anchoring and stress tolerance.
• For All Palms: Suitable across landscape, container, and indoor palm growing situations.

Who Should Use This

Landscape professionals, home gardeners, and indoor palm growers dealing with alkaline soils, high-pH irrigation water, or visible magnesium deficiency symptoms are the direct fit. Apply as a dissolved soil drench, and pair with a liquid palm food or iron chelate treatment when chlorosis is already present.

About Grow More Inc.

Grow More Inc., founded in 1918 as National Chemical Company in Hollywood, California and now based in Gardena, California, has built a fertilizer catalog with several palm-specific formulas addressing the particular nutritional gaps palms encounter in landscape and container settings.

Frequently Asked Questions

What are the symptoms of magnesium deficiency in palms?

Magnesium deficiency shows up first as yellowing on the older, lower fronds while the midrib stays green, with the yellowing progressing upward through the canopy as the deficiency worsens. This pattern is the clearest sign that magnesium supplementation is needed.

Why do palms often struggle with micronutrients in alkaline soils?

Many landscape palms grow in alkaline or calcareous soils above pH 7.0 to 7.5, where iron, manganese, and zinc form insoluble compounds roots can't absorb even when the nutrients are technically present. The acid-forming ingredients in this formula help lower local pH and release those nutrients back into plant-available form.

How often should I apply Soluble Palm Food?

Apply every 4 to 6 weeks during the active spring-through-summer season for landscape palms, or every 3 to 4 weeks for container palms. Reduce frequency in cooler months when growth slows.

Can I use Soluble Palm Food in a drip irrigation system?

Yes, it dissolves fully and can be injected into drip systems at the recommended dilution rate. Flush the system with plain water afterward to prevent salt buildup in lines and emitters.

Is this suitable for indoor palms like kentia and areca palms?

Yes, it's labeled for all palm varieties including popular indoor species. Apply as a diluted soil drench at a reduced rate compared to outdoor use, and make sure containers drain well to avoid salt accumulation.