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10 Best Fertilizer For Arborvitae 2025 in the United States

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#1

Winner

Miracle-Gro Tree and Shrub Plant Food Spikes, For Deciduous, Flowering and Evergreen Trees, 12 Spikes

Miracle-Gro Tree and Shrub Plant Food Spikes are designed to promote vibrant color and foliage in various trees and shrubs, including arborvitae. These spikes are easy to use, as they are inserted directly into the soil around the tree’s drip line, delivering nutrients straight to the roots. This ensures efficient feed and minimizes wastage.

The recommended application is twice a year, in spring and fall, making it a low-maintenance option for busy gardeners. The product is suitable for deciduous, flowering, and evergreen trees, and it’s especially beneficial for acid-loving plants. This versatility makes it a good choice for a range of gardening needs.

The fertilizer is synthetic, which could be a consideration for those preferring organic options. Additionally, using spikes requires proper spacing to avoid over-fertilizing, which may be tricky for some users. With a package of 12 spikes, it is sufficient for feeding multiple trees or shrubs. This product would particularly benefit gardeners looking for an easy, effective way to nourish their evergreen and other types of trees without frequent applications.

#2

10-10-10 Plant Fertilizer Slow Release – 10 10 10 All Purpose Granular Garden Fertilizer for Fruit Trees, Evergreens, Vegetables, Arborvitae, Fig Trees, Shrubs, Pines, Oaks, Flowers (4 QUARTS)

Rating
9.8
NPK Ratio

Most important from
1426 reviews

NPK Ratio
The 10-10-10 mixture is easy to apply and leaves no odor, though overspray can cause minor staining.

The 10-10-10 Plant Fertilizer Slow Release is a versatile option for those looking to support a wide variety of plants, including arborvitae. With its balanced NPK ratio of 10% Nitrogen, 10% Phosphorus, and 10% Potassium, this granular fertilizer is designed to provide a well-rounded nutrient supply that promotes strong roots, lush growth, and vibrant blooms. It's suitable for outdoor and indoor use, making it practical for both garden enthusiasts and those with potted plants.

One of the standout features is its slow-release formula, which can feed plants for up to 8 weeks, reducing the frequency of applications and saving time for busy gardeners. This fertilizer is synthetic, which means it may work quicker but lacks the organic composition some gardeners prefer for maintaining long-term soil health. It is also easy to apply, with fine granules that spread evenly across the soil for maximum absorption, which is beneficial for even coverage in larger garden areas.

While it is marketed as suitable for a variety of plants, including evergreens like arborvitae, understanding your soil’s pH is crucial as it does not detail specific pH compatibility. This product is best suited for users who are looking for a straightforward, all-purpose fertilizer and are comfortable with synthetic options. Those pursuing organic gardening might need to consider supplementary or alternative fertilizers.

Rating
9.8
NPK Ratio

Most important from
1426 reviews

NPK Ratio
The 10-10-10 mixture is easy to apply and leaves no odor, though overspray can cause minor staining.
#3

BIOADVANCED 12-Month Tree and Shrub Protect and Feed, Insect Killer and Fertilizer, 1-Gallon, Concentrate 701915A

The BIOADVANCED 12-Month Tree and Shrub Protect and Feed is a multifunctional product designed to both nourish and protect your Arborvitae and other trees or shrubs. One of its standout features is its long-lasting protection; a single application can fend off insects like Japanese Beetles, Emerald Ash Borers, and Aphids for up to a year. This makes it very convenient for busy gardeners who prefer less frequent maintenance.

Additionally, the slow-release fertilizer helps improve the health of your plants over time, ensuring they receive a steady supply of nutrients. The product’s systemic protection ensures that each part of the plant, from roots to leaves, is safeguarded against potential threats. However, it's important to note that this product is not organic; it is a synthetic fertilizer and insecticide, which might not appeal to those looking for a natural gardening solution.

Furthermore, it cannot be used in certain states like Connecticut, Colorado, Maryland, and Vermont due to regulatory restrictions, so availability might be an issue depending on your location. Another downside might be the weight and size, as the gallon container might be cumbersome for some. For those looking for a robust, all-in-one solution to protect and feed their Arborvitae and other shrubs with minimal effort, this product is a strong candidate, provided they are comfortable using synthetic options and it is permissible in their state.

Buying Guide for the Best Fertilizer For Arborvitae

Choosing the right fertilizer for your arborvitae is crucial to ensure healthy growth and vibrant foliage. Arborvitae, like all plants, require specific nutrients to thrive, and the right fertilizer can provide these in the correct proportions. When selecting a fertilizer, it's important to understand the key specifications and how they relate to the needs of your arborvitae. This guide will help you navigate through the essential specs and choose the best fertilizer for your plant.
NPK RatioThe NPK ratio represents the proportions of nitrogen (N), phosphorus (P), and potassium (K) in the fertilizer. This ratio is important because each of these nutrients plays a different role in plant health. Nitrogen promotes leafy growth, phosphorus supports root development and flowering, and potassium enhances overall plant health and disease resistance. For arborvitae, a balanced NPK ratio like 10-10-10 or one slightly higher in nitrogen, such as 12-6-6, is often recommended. If your arborvitae is young or newly planted, a higher phosphorus content can help establish strong roots.
Type of FertilizerFertilizers come in various forms, including granular, liquid, and slow-release. Granular fertilizers are easy to apply and provide nutrients over a period of time as they break down in the soil. Liquid fertilizers are fast-acting and can be applied directly to the soil or foliage, making them ideal for quick nutrient boosts. Slow-release fertilizers gradually release nutrients over several months, reducing the need for frequent applications. For arborvitae, slow-release fertilizers are often preferred as they provide a steady supply of nutrients, promoting consistent growth without the risk of over-fertilization.
Organic vs. SyntheticFertilizers can be either organic or synthetic. Organic fertilizers are made from natural materials such as compost, manure, or bone meal, and they improve soil structure and microbial activity. Synthetic fertilizers are chemically manufactured and provide nutrients in a readily available form. While synthetic fertilizers can offer quick results, organic fertilizers are generally better for long-term soil health and sustainability. If you prefer an eco-friendly approach and want to improve your soil's health over time, organic fertilizers are a good choice for your arborvitae.
MicronutrientsIn addition to the primary nutrients (NPK), plants also need micronutrients such as iron, manganese, zinc, and copper in smaller amounts. These micronutrients are essential for various physiological functions and overall plant health. A good fertilizer for arborvitae should include these micronutrients to ensure balanced nutrition. Check the fertilizer label to see if it contains a comprehensive mix of micronutrients, especially if your soil is deficient in any of these elements.
Soil pH CompatibilityThe pH level of your soil can affect the availability of nutrients to your arborvitae. Arborvitae generally prefer slightly acidic to neutral soil (pH 6.0-7.5). Some fertilizers are formulated to adjust the soil pH, making nutrients more accessible to the plant. Before choosing a fertilizer, test your soil's pH and select a product that is compatible with your soil conditions. If your soil is too acidic or alkaline, you may need to amend it with lime or sulfur to achieve the optimal pH range for arborvitae.

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