Best Fertilizer for Trees and Shrubs: A Long-Term Growth Guide

Healthy trees and shrubs are the backbone of any thriving landscape. Whether you are maintaining a home garden, orchard, or large-scale plantation, using the best fertilizer is essential for ensuring strong root systems, vigorous foliage, and long-lasting resilience. Choosing the right product goes beyond simply adding nutrients—it requires understanding soil conditions, plant needs, and long-term growth strategies.

In this guide, we’ll explore the best fertilizers for trees and shrubs, their benefits, and how products like Yarafert’s innovative formulas—including SULFOMIX, Biofast, and the Ugarit range—can provide complete nutrition for sustainable plant health.


Best Fertilizer for Trees: Promoting Deep Roots and Strong Growth

Trees require balanced nutrition to establish deep root systems and withstand environmental stress. The best fertilizer for trees should include a mix of macronutrients—nitrogen (N), phosphorus (P), and potassium (K)—along with essential micronutrients such as magnesium, boron, and iron.

Key nutrients that strengthen tree growth:

  • Nitrogen (N): Promotes leaf development and chlorophyll formation.
  • Phosphorus (P?O?): Stimulates root expansion and flowering.
  • Potassium (K?O): Enhances disease resistance and water regulation.
  • Micronutrients (Fe, Zn, Mn, Cu): Support enzyme activity and photosynthesis.

For instance, Biofast (12-12-12 with humic and fulvic acids) not only provides balanced NPK but also improves soil structure and nutrient uptake. Similarly, SULFOMIX, enriched with zinc, magnesium, manganese, and sulfur, is ideal for correcting micronutrient deficiencies in tree orchards.


Choosing the Best Fertilizer for Shrubs Based on Soil Type

Shrubs, unlike tall trees, have shallow root systems that respond differently to soil conditions. Selecting the best fertilizer for shrubs requires a soil-based approach:

  • Sandy soils: Nutrients leach quickly; slow-release fertilizers like Ugarit 10-0-5 + 70% Organic Matter are ideal for improving water retention.
  • Clay soils: Dense soils need balanced NPK fertilizers such as Ugarit 27-27-27 + TE to prevent nutrient lockup.
  • Acidic soils: Fertilizers with calcium and magnesium, such as CALCIMAG, restore balance while supporting leaf health.
  • Alkaline soils: Sulfur-based products like Sulforex 80 + S help acidify the soil for better nutrient availability.

By matching fertilizer to soil type, shrubs can maintain lush foliage, vibrant flowers, and strong disease resistance.

READ MORE: Citrus Fertilizer for Lemon Trees: What to Use and When


Best Fertilizers for Long-Term Tree and Shrub Care

Long-term plant care requires consistency and balanced nutrition. Fertilizers that provide slow, steady release are preferred for sustainable growth.

Some recommended options include:

  • Ugarit K-T-S 25 and Ugarit K-T-S 70 – High in potassium and sulfur, ideal for enhancing drought tolerance.
  • SULPHOMIN – With 45% nitrogen and 25% organic matter, it boosts sustained growth and soil fertility.
  • Ugarit Multi – A liquid formula rich in potassium, sulfur, and calcium, perfect for strengthening cell walls and improving fruit quality.

Benefits of consistent fertilizer application:

  • Encourages uniform canopy development.
  • Improves resistance to pests and environmental stress.
  • Maintains soil fertility across multiple seasons.

How Often to Apply the Best Fertilizer for Trees and Shrubs

Application frequency depends on tree or shrub type, soil fertility, and growth stage. As a general rule:

  • Young trees and shrubs: Fertilize 2–3 times per year to accelerate root and stem growth.
  • Mature trees and shrubs: Apply 1–2 times annually, preferably in early spring and late fall.
  • Fruit-bearing species: Use targeted fertilizers like Ugarit 10-10-40 + TE during flowering and fruiting to maximize yield.

Practical application tips:

  • Apply fertilizer evenly around the drip line, not just at the base.
  • Water immediately after application to enhance nutrient absorption.
  • Avoid over-fertilization, which can lead to leaf burn or nutrient imbalance.

READ MORE: How Often Should You Use Citrus Fertilizer on Mature Trees?


Organic Fertilizers for Trees: The Best Options for Sustainable Growth

Sustainability in agriculture is no longer optional—it’s a necessity. Organic fertilizers improve soil health while delivering essential nutrients. The best fertilizer for trees in organic farming is one that combines macronutrients with humic and fulvic acids for enhanced microbial activity.

A prime example is Ugarit 10-0-5 + 70% Organic Matter, which provides:

  • Humic acid (27%) and Fulvic acid (43%) for improved soil biology.
  • Nitrogen (10%) and Potassium (5%) for steady vegetative growth.
  • Added calcium and sulfur for better nutrient balance.

When paired with mineral-based supplements like Sulforex 60 + Cu, organic fertilizers can offer both sustainability and high performance.


Quick Reference: Nutrient Breakdown of Key Fertilizers

The following table highlights some recommended products and their primary benefits:

Product NameKey NutrientsBenefitsForm
SULFOMIXFe 6%, Zn 3%, MgO 3%, Mn 2%, Cu 2%, B 3%, S 11%Corrects micronutrient deficienciesSuspension
BiofastN 12%, P?O? 12%, K?O 12%, Humic & Fulvic Acid 48%Balanced growth + soil healthGel
Ugarit K-T-S 25K?O 36%, SO? 25%Boosts drought tolerance, strengthens rootsLiquid
Ugarit 10-0-5 + OrganicN 10%, K?O 5%, Humic + Fulvic 70%Organic soil enrichmentGranular
SULPHOMINN 45%, SO? 15%, Organic 25%Long-term soil fertilityLiquid
CALCIMAGN 15%, CaO 22%, MgO 3%Strengthens cell walls, reduces blossom end rotLiquid

Conclusion: Choosing the Best Fertilizer for Trees and Shrubs

Selecting the best fertilizer for trees and shrubs depends on plant type, soil condition, and long-term care goals. Balanced NPK fertilizers such as Biofast, micronutrient-rich blends like SULFOMIX, and organic enhancers like Ugarit 10-0-5 + 70% Organic Matter all play vital roles in creating a thriving, sustainable landscape.

Whether you are growing fruit orchards, ornamental gardens, or forestry plantations, Yarafert’s product portfolio provides solutions tailored for every need.

? Ready to give your trees and shrubs the best possible care?
Explore our complete range of fertilizers today, or contact our expert team for personalized recommendations on the ideal product for your soil and crop requirements.

READ MORE: Understanding NPK Ratios in Tree Fertilizers: What Your Trees Really Need



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