Arborvitae are the backbone of privacy, but watching them turn brown from the inside out or struggle after a harsh winter is a sinking feeling. The wrong food can push weak, leggy growth that snaps under snow load, while the right formula builds deep roots and a dense wall of green that blocks the neighbor’s view season after season.
I’m Rikta — the co-founder and writer behind FitlyFast. My research on arborvitae nutrition focuses on identifying which NPK profiles, delivery forms (spike vs. granular vs. liquid), and pH-management strategies deliver measurable results for these specific evergreens in real soil conditions.
This guide compares seven arborvitae foods based on nutrient ratios, organic content, application ease, and proven customer results. I’ve analyzed hundreds of reviews to find the best arborvitae food for every growing scenario.
How To Choose The Best Arborvitae Food
Selecting the right arborvitae food means matching the nutrient profile to your tree’s life stage, your soil type, and your preferred application frequency. Arborvitae have specific needs that differ from broadleaf shrubs or flowering ornamentals.
Understand NPK Priorities for Arborvitae
Arborvitae are evergreen needled plants that prioritize healthy root systems and dense foliage over flowers or fruit. A balanced formula with a moderate first number (Nitrogen) is usually sufficient, but too much nitrogen can create lush, flimsy growth that is vulnerable to winter burn. Look for formulas where the nitrogen is slow-release to avoid shocking the roots.
Choose Your Application Method
Spikes are a set-and-forget solution — great for homeowners who want an easy, mess-free annual application. Granular formulas like Espoma’s are excellent for spreading around the drip line of established hedges and offer organic options. Liquid fertilizers penetrate sandy soils quickly and are ideal for a quick green-up rescue of stressed trees.
Consider Soil pH and Organic Content
Arborvitae prefer slightly acidic soil, typically between 6.0 and 7.0. If you have alkaline soil, a food with sulfur (like Espoma Holly-tone) helps lower the pH around the roots. Organic options improve long-term soil structure and microbial life, while synthetic formulas provide a fast nutrient hit.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| TPS Nutrients Arborvitae Food | Liquid | Quick green-up & sandy soils | 32 oz concentrate | Amazon |
| Espoma Organic Evergreen-Tone | Granular | Organic, slow-release feeding | 4-3-4 + 5% Sulfur | Amazon |
| SimplyGro Tree & Shrub Spikes | Spikes | Undisturbed mulch beds | 8-8-8, 24 spikes | Amazon |
| Gardenera 10-10-10 Slow Release | Granular | Versatile garden & border trees | 3 Quarts (96 oz) | Amazon |
| Espoma Organic Holly-Tone | Granular | Acid-loving evergreens | 36 lb bulk bag | Amazon |
| Jobe’s Evergreen Fertilizer Spikes | Spikes | Budget-friendly, slow-release | 13-3-4, 15 spikes | Amazon |
| Winchester Gardens Landscaper Spikes | Spikes | Large property bulk pricing | 70 spikes, 15-10-9 | Amazon |
In‑Depth Reviews
1. TPS Nutrients Arborvitae Tree Fertilizer
This liquid concentrate is formulated specifically for arborvitae and other evergreen hedges. Its 2-tablespoon-per-gallon dilution makes the bottle last through multiple feedings, and the balanced nutrition targets root strength alongside foliage density. Users report visible green-up of declining trees within a few weeks, particularly in sandy soils where spikes struggle to release evenly.
Reviewers praise the product for saving trees after a harsh Chicago winter and for restoring brown, stressed arborvitae around pool areas back to a deep green, soft texture. The formula works well with both sprayers and watering cans, giving you flexibility for large hedgerows.
The biggest advantage is its fast absorption. If your arborvitae look sickly and need an immediate intervention, this liquid option bypasses the slow decomposition time of organic granules or spikes. Feed every two weeks during the growing season for best results.
Why it’s great
- Immediate nutrient uptake for stressed trees
- Formulated for arborvitae specifically
- Works on sandy soil where spikes fail
Good to know
- Requires mixing and frequent reapplication
- 32 oz bottle covers multiple feedings but needs reordering
2. Espoma Organic Evergreen-Tone 4-3-4
Espoma’s Evergreen-Tone is a granular organic formula with a 4-3-4 NPK, enhanced by their proprietary Bio-tone microbes. The 5% sulfur content helps lower soil pH, which is beneficial for arborvitae growing in neutral to alkaline ground. Users love that it improves soil biology over time rather than just feeding the plant a synthetic salt hit.
Customer reviews consistently mention rich, deep green color appearing within two weeks of application and sustained growth throughout the season. The barnyard smell from the poultry manure base is a signal that you’re adding genuine organic matter to the root zone. It’s safe for pets and children once watered in.
The 18 lb bag covers quite a few trees, and Espoma recommends feeding twice a year — early spring and late fall. This slow-release approach builds resilience over multiple seasons without the risk of burning roots from synthetic quick-release formulas.
Why it’s great
- Organic with beneficial Bio-tone microbes
- Sulfur adjusts pH for better nutrient uptake
- Safe for kids and pets after watering
Good to know
- Strong natural manure odor upon application
- Requires watering in and takes time to break down
3. SimplyGro TruSpikes 8-8-8 (24 Count)
SimplyGro TruSpikes are patented spikes designed to be hammered directly into the soil without breaking, eliminating the need for plastic driving caps. The balanced 8-8-8 NPK ratio provides a moderate, steady feed for all tree and shrub types, including arborvitae. Each spike feeds for up to three months, making it a true set-and-forget option.
Reviews highlight that the spikes jump-started crepe myrtle blooms and revived winter-damaged plants in central Florida. Users say their trees greened up within weeks and appreciate that the spikes deliver nutrients directly to the root zone without runoff or mess. The package includes 24 spikes, covering a small to medium hedge line.
Because these spikes are designed for deciduous and coniferous trees alike, they work well for a mixed landscape. For arborvitae, simply space them around the drip line according to the package instructions, and you’re done for the season. The lack of plastic caps is a genuine convenience improvement over older spike designs.
Why it’s great
- No plastic caps needed — just hammer in
- Balanced 8-8-8 formula supports all shrubs
- Lasts up to 3 months per application
Good to know
- Not organic — synthetic formula
- Can be difficult to insert in rocky or clay soil
4. Gardenera 10-10-10 Slow Release Fertilizer
Gardenera’s 10-10-10 slow-release granules offer a classic balanced NPK profile in an easy-to-apply granular form. The slow-release coating prevents root burn and provides a steady supply of nutrients over time. While not formulated exclusively for arborvitae, many gardeners use it successfully on their evergreen hedges and privacy screens.
Customer reviews note that a small amount of pellets around plants promotes robust new growth and blooms across a wide variety of species, from rubber plants to citrus trees. For arborvitae, the key is to apply it in early spring and again in early fall for consistent feeding.
One caution: the 3-quart package provides more volume than a smaller bottle, but the actual weight is only 16 ounces, so it’s a fluffy, lightweight material. Users with large hedges may find they need multiple units. Always measure carefully and store the granules in a dry place to prevent clumping.
Why it’s great
- Slow-release means less risk of overfeeding
- Versatile for all plants in the landscape
- Easy sprinkle application
Good to know
- Not organic or arborvitae-specific
- Lightweight granules — large hedges require multiple bags
5. Espoma Organic Holly-Tone 4-3-4 (36 lb)
Holly-Tone is the classic Espoma formula for all acid-loving plants, and arborvitae certainly benefit from the lower pH it encourages. The 4-3-4 analysis with 5% sulfur creates an environment where evergreens can access micronutrients more efficiently. This 36 lb bag is a serious investment for homeowners with long hedge lines or multiple trees.
Devoted users have relied on Holly-Tone for decades, reporting incredible blooms on azaleas and massive growth on magnolias. For arborvitae, the organic blend builds long-term soil fertility that simple synthetic spikes cannot match. Reviews note that the product works year after year with consistent results.
The bulk size is cost-effective for large properties. Apply in spring and fall around the drip line, water in, and watch your arborvitae develop the deep green color that indicates excellent health. It is also approved for organic gardening, which is a bonus for environmentally conscious growers.
Why it’s great
- Trusted organic formula for over 90 years
- Reduces soil pH for better arborvitae nutrition
- Bulk bag saves money per feeding
Good to know
- Labeled for acid-lovers, not evergreens specifically
- Strong organic smell during application
6. Jobe’s Evergreen Fertilizer Spikes 13-3-4 (15 Pack)
Jobe’s Evergreen Spikes are formulated with a high-nitrogen 13-3-4 ratio specifically for needled evergreens. The slow-release action lasts up to 90 days and is designed to prevent root burn. Users have found these spikes particularly effective on Green Giant arborvitae, reporting bigger, more beautiful growth each season.
Customer reviews praise the spikes for perking up struggling bushes and being easy to drive into moist ground. The plastic driving cap (included) protects the spike during installation, though some users recommend using a hammer claw to retrieve the cap. The 15-pack is an entry-level option for new plantings.
Be aware that the high nitrogen content can push soft growth that is more vulnerable to winter burn and deer browsing. For established arborvitae in zones with harsh winters, a lower-nitrogen, more balanced formula may be a safer choice. Use in spring only for best results.
Why it’s great
- High nitrogen for fast visible green-up
- Slow-release, no mixing needed
- Budget-friendly entry point
Good to know
- High nitrogen can cause tender, weak growth
- Plastic driving caps can be brittle
7. Winchester Gardens Landscaper Pack Spikes 15-10-9 (70 Count)
This 70-count box of spikes from Winchester Gardens is designed for property owners with extensive tree and shrub plantings. The 15-10-9 ratio delivers a strong dose of nitrogen for foliage density, with phosphorus and potassium to support roots and overall vigor. Each spike is pre-measured to prevent over-application.
Long-term users (20+ years) report that these spikes produce tremendous new foliage on mature trees, and buying the landscaper pack saves over 50% compared to buying individual boxes. The spikes are child- and pet-friendly, and the slow-release design reduces groundwater contamination risks compared to liquid fertilizers.
Note that the plastic driving caps can be brittle — some reviewers mentioned breakage during use. Plan to apply in early spring and again in fall for year-round nutrition. For arborvitae hedges exceeding 10 trees, this bulk option provides the best value per spike and saves trips to the store.
Why it’s great
- Significant cost savings in bulk quantity
- High nitrogen boosts dense foliage growth
- Child and pet safe
Good to know
- Plastic caps may break during installation
- Not organic — synthetic slow-release formula
FAQ
How often should I feed established arborvitae?
Is high-nitrogen fertilizer safe for arborvitae in cold climates?
Do arborvitae need acid fertilizer like Holly-Tone?
Final Thoughts: The Verdict
For most users, the best arborvitae food winner is the TPS Nutrients Arborvitae Tree Fertilizer because its liquid formula delivers fast, noticeable green-up while being specifically designed for arborvitae’s nutritional needs. If you want an organic, soil-building approach, grab the Espoma Organic Evergreen-Tone. And for hassle-free, set-and-forget feeding of a large hedge, nothing beats the SimplyGro TruSpikes 8-8-8.