10 Best Pine Tree Fertilizer Spikes for Healthier Evergreens in 2026

If you have trees or shrubs in your yard, you know they need proper nutrition to stay healthy and vibrant. Miracle-Gro Tree and Shrub Plant Food Spikes make that job simple. Each spike delivers a balanced 15-5-10 NPK blend directly to the roots, where plants need it most. This product is designed for deciduous, flowering, and evergreen trees, as well as acid-loving plants like hydrangeas, azaleas, and magnolias. It's a great choice for homeowners who want an easy, no-mess feeding solution that works season after season.

The standout feature here is convenience. Instead of mixing or measuring liquid or granular fertilizer, you just push these spikes into soft, moist soil around the drip line of your tree or shrub. The slow-release formula feeds for months, so you only need to apply twice a year once in early spring and once in mid-fall. Gardeners report seeing richer green leaves and more abundant blooms after using these spikes. The 12-count package covers three trees with a 4-foot drip line or one larger tree with a 12-foot drip line, making it a practical choice for most yards.

Build quality is what you'd expect from Miracle-Gro. The spikes are sturdy and resist breaking during installation, though very hard or rocky soil can make driving them in a challenge. The packaging includes clear instructions and a chart to determine the right number of spikes for your tree's size. One small drawback: the spikes are not intended for summer use. If your tree looks stressed during hot months, you'll need a different product like Miracle-Gro Shake 'N Feed. Also, spikes must be spaced at least 3 feet apart, which might be tricky in tight planting areas.

Overall, these spikes deliver on their promise. They provide targeted, slow-release nutrition that promotes healthy growth and vibrant color with minimal effort. For anyone who wants to keep their trees and shrubs looking their best without a complicated routine, Miracle-Gro Tree and Shrub Plant Food Spikes are a reliable, easy-to-use option. Just remember to apply in spring and fall, and you'll see the difference.

Jobe's Evergreen Fertilizer Spikes are designed to simplify tree and shrub care. If you prefer a no-fuss approach to feeding your evergreens, these pre-measured spikes take the guesswork out of fertilizing. Each spike contains a balanced 13-3-4 NPK formula that releases nutrients slowly over several months. This makes them a solid choice for homeowners who want healthy foliage without constant reapplication.

The standout feature is the slow-release technology. Unlike quick-release feeds that can wash away or burn roots, these spikes deliver nutrients gradually for up to 90 days. I found this especially useful for established evergreens like arborvitae and junipers, where consistent feeding matters. The convenience factor is huge: just push the spikes into moist soil around the drip line and you are done. No measuring, no mixing, no cleanup.

Build quality is straightforward - each spike is compact and easy to handle. The packaging includes clear instructions on how many spikes to use based on trunk diameter, so you avoid overdoing it. They hold together well during insertion and don't crumble. However, if your soil is very compact or rocky, you may need to pre-water or drill a pilot hole. It is not a dealbreaker, but worth noting.

One potential drawback is the pack size. With 15 spikes, you might need multiple packs for larger yards or multiple trees. Also, while the formula works well for most evergreens, it is not a one-size-fits-all; acid-loving evergreens like azaleas may need a different ratio. Additionally, the price per spike is higher than bagged granular fertilizers, but you pay for the convenience and precision.

Overall, Jobe's Evergreen Fertilizer Spikes deliver on their promise of easy, long-term feeding. They are a practical solution for anyone tired of messy granular applications or who tends to forget fertilizing schedules. For healthy, vibrant evergreens with minimal effort, these spikes are a reliable choice.

Jobe's Slow Release Evergreen Fertilizer Spikes are designed for gardeners who want a simple, effective way to feed acid-loving trees and shrubs. These pre-measured spikes deliver a balanced 11-3-4 NPK formula directly to the root zone, where it's needed most. They work well on cypress, arborvitae, pine, cedar, and many other evergreens, making them a versatile choice for maintaining healthy, vibrant foliage.

The standout feature is the slow-release technology. Unlike granular fertilizers that can wash away or burn roots, these spikes break down gradually over several months. You only need to apply them twice a year — once in early spring and again in late fall. This hands-off approach saves time and reduces the chance of over-fertilizing. Many users report noticeable improvements in tree color and growth within weeks, especially when spikes are placed correctly at the drip line.

Installation is straightforward but requires a bit of care. You'll need a hammer and the included plastic cap to drive each spike about 1-2 inches below the soil surface. Some reviewers note that the spikes can crack if you hit them too hard or if the ground is rocky. A common workaround is to pre-drill a hole with a crowbar or auger bit, which also helps ensure the spike goes in straight. Once installed, there's no mess or odor, and the spikes are safe around children and pets.

On the downside, the 9-count pack may not be enough for larger landscapes. Each spike covers a certain area, so you'll need to calculate how many packs to buy based on the size and number of your trees. Also, these spikes are formulated specifically for acid-loving species — using them on other plants could cause nutrient imbalances. But for evergreens, they deliver consistent results with minimal effort.

Overall, Jobe's Slow Release Evergreen Fertilizer Spikes are a reliable choice for anyone looking to simplify tree care. They combine convenience with effective nutrition, backed by thousands of positive reviews. If you're willing to take a little extra care during installation, these spikes will keep your evergreens looking their best year after year.

Brand: Jobe's
NPK Ratio: 11-3-4
Count: 9 spikes per pack
Target Species: Cypress, Arborvitae, Pine, Cedar, Boxwood, Spruce, Hemlock, Fir
Application: Twice per year (early spring and late fall)
Installation Depth: 1-2 inches below surface
Safe for: Indoor and outdoor use, around children and pets
Made in: USA

SimplyGro Fertilizer Spikes are a targeted, no-fuss solution for feeding evergreen trees and shrubs. They are formulated with a 12-3-3 NPK ratio, which is specially designed to meet the needs of conifers, pines, firs, and other evergreens. Each spike packs a slow-release dose of nutrients that feeds the plant at the root level for up to three months, making it an ideal choice for homeowners who want to simplify their yard care.

Standout Features and Performance
The biggest advantage here is convenience. You don't have to mix, measure, or remember a schedule; just hammer the spikes into the ground around your trees and shrubs in spring and again in fall. The patented TruSpikes design means they won't crumble or break during installation, unlike older oval spikes. The 5-inch spikes are pre-measured to reduce the risk of over-fertilizing, which is a common problem with granular feeds. This also helps limit nutrient runoff into local waterways, a plus for eco-conscious gardeners.

Build Quality and Design
These spikes feel solid and well-made. They come in a box of 24, weighing 3 pounds total, and each spike is long enough to reach the active root zone of most evergreens. The lack of a plastic cap or special applicator keeps things straightforward. Made in the USA, the build quality inspires confidence that they will perform consistently from spike to spike.

Potential Drawbacks
If you have very large or mature trees, you may need several spikes around each one, which can add up in cost. Also, these spikes are not formulated for non-evergreen plants, so they won't be a one-size-fits-all solution for your entire garden. You will need to remember to reapply twice a year to maintain results.

Final Verdict
SimplyGro Fertilizer Spikes are a reliable and easy way to keep your evergreen trees and shrubs healthy and vibrant. They take the guesswork out of feeding and deliver nutrients right where they're needed. If you value simplicity and want a product that is effective and environmentally mindful, these spikes are a solid investment for your landscape.

Product Name: SimplyGro Fertilizer Spikes for Evergreen Trees & Shrubs

Size: 24 Spikes, 6.0 Lbs

Weight: 3 Pounds

NPK Ratio: 12-3-3 (Nitrogen-Phosphorus-Potassium)

Product Group: Lawn & Patio

Binding: Lawn & Patio

Country of Origin: USA

The Jobe's 01611 Evergreen Tree Fertilizer Spikes come in a bulk pack of six boxes, each containing 15 spikes. That's 90 spikes total, enough to feed a small grove of evergreens or several large trees for an entire growing season. This product is designed for homeowners who want a set-it-and-forget-it approach to tree nutrition without the hassle of mixing liquids or spreading granules.

Each spike is pre-measured with a 13-3-4 NPK formula that's tailored to the needs of evergreens, pines, spruces, and other acid-loving trees. The slow-release technology feeds continuously for up to a year, which means you only need to apply once per season. The spikes are inserted into the soil around the tree's drip line, where they break down gradually and deliver nutrients directly to the root zone. This targeted delivery encourages deep, strong root growth that helps trees withstand drought, wind, and disease.

In terms of build quality, the spikes are solid and hold their shape during insertion. They're about 3 inches long and have a pointed tip to make driving them into the ground easier. However, if you have very compacted or clay-heavy soil, you might need to pre-soak the area or use a screwdriver to create pilot holes. Once in place, the spikes work silently underground with no odor or runoff.

One potential drawback is the price. At nearly $95 for the six-pack, it's a significant investment upfront. But when you compare it to buying individual boxes at retail, the per-spike cost is actually lower. Also, keep in mind that this product is formulated specifically for evergreens and acid-loving trees. If you have a mix of deciduous trees or fruit trees, you'll need a different formula for those.

Overall, the Jobe's 01611 spike pack is a solid choice for anyone with a yard full of evergreens or pine trees. The convenience of one-time annual application and the benefits of deep root development make it worth the investment for serious gardeners. Just be prepared for a bit of elbow grease if your soil is tough.

The SimplyGro Fertilizer Spikes for Evergreen Trees & Shrubs are a convenient and effective solution for anyone looking to simplify their tree care routine. Designed specifically for evergreens, pines, firs, and other coniferous plants, these spikes deliver a balanced 12-3-3 NPK formula that targets the unique nutritional needs of these species. The product comes as 12 pre-measured spikes weighing 3 pounds, each 5 inches long, and is proudly made in the USA.

One of the standout features is the patented TruSpike design. Unlike traditional crumbly or oval spikes, these are tough and durable, guaranteed not to break, crush, or smash during installation. You simply hammer them into the ground near the root zone, no plastic caps or special gear required. Each spike provides continuous feeding for up to three months, making it a true set-and-forget solution. For best results, the manufacturer recommends applying twice a year: once in spring when plants are actively growing and again in fall to help store energy for winter.

The pre-measured nature of the spikes is a major advantage. It helps prevent over-fertilization, which can burn roots, and reduces the risk of nutrient runoff into local waterways. This makes the product a smarter, more environmentally conscious choice for home gardeners. The spikes feed directly at the roots, promoting lush foliage, vibrant color, and healthy growth without the mess of granular or liquid fertilizers.

However, there are a few limitations. These spikes are formulated only for evergreens and conifers, so they won't work for other types of plants. For very large or mature trees, the 12-spike pack may not provide enough coverage, and the spikes might not reach the deeper root systems of older specimens. Additionally, while the continuous release is convenient, it may not deliver the immediate results some gardeners expect from liquid feeds.

Overall, the SimplyGro Fertilizer Spikes offer a practical, low-maintenance approach to feeding evergreens. They are well-suited for homeowners who want consistent, slow-release nutrition without the hassle of measuring or mixing. If you value ease of use, durability, and targeted feeding for your conifers, this product is a solid choice.

Jobe's Slow Release Evergreen Fertilizer Spikes are designed for anyone who wants to keep their cypress, arborvitae, pine, cedar, and other acid-loving trees looking their best with minimal effort. This 160-count bulk pack is ideal for homeowners with multiple trees or a large landscape who prefer a set-it-and-forget-it approach to feeding.

The standout feature is the pre-measured 11-3-4 NPK formula. Each spike delivers a steady supply of nutrients directly to the root zone, so you don't have to worry about wasteful runoff or unpleasant smells. The slow-release technology means you only need to apply them twice a year (early spring and late fall) to keep your trees healthy and vibrant. In real-world use, this translates to less time spent on maintenance and more consistent results.

Build quality is solid. The spikes are sturdy enough to push into most soils without breaking, though you may need to moisten hard ground first. The packaging is straightforward and easy to store. At 38.9 pounds for the box, it's heavy but manageable.

One potential drawback is the price. At around $200, the upfront cost is higher than bagged granular fertilizers. However, the convenience and effectiveness often justify the investment for dedicated gardeners. Also, these spikes are specifically formulated for evergreens and acid-loving trees, so they won't work as well for other plant types.

Overall, Jobe's Evergreen Fertilizer Spikes are a reliable and hassle-free solution for feeding acid-loving trees. If you value simplicity and want to avoid the mess of traditional fertilizers, this bulk pack is a smart choice for maintaining a lush, healthy landscape all year round.

Product Dimensions: 17 x 9.5 x 8 inches

Weight: 38.9 Pounds

Number of Spikes: 160

NPK Ratio: 11-3-4

Color: No Color

Product Group: Outdoors

Who should buy this? Homeowners with multiple evergreen trees (cypress, arborvitae, pine, cedar) who want an easy, no-mess fertilization method. Best for those who prefer slow-release spikes over granular or liquid fertilizers.

When to apply: Early spring and late fall for best results. Insert spikes into moist soil around the drip line of each tree.

How many to use: Refer to the package instructions based on tree size. For mature trees, you may need multiple spikes per tree.

Storage: Keep the box in a cool, dry place. Spikes remain effective for several years if stored properly.

The Old Farmer's Almanac Tree & Shrub Fertilizer Spikes offer a straightforward way to feed your woody plants without the mess of granular or liquid fertilizers. If you have trees, evergreens, or shrubs that need a reliable nutrient boost, these spikes are a solid option for low-maintenance feeding.

The key standout is the patented TruSpike design. These aren't the crumbly, dusty spikes you might have used before. They're dense and durable, allowing you to hammer them directly into the soil without them breaking apart. The 13-3-3 formula provides a balanced mix of nitrogen for leaf growth, phosphorus for flowers and fruit, and potassium for strong roots. According to the manufacturer, each spike feeds the plant for up to three months, which means you can set it and forget it for the whole season.

Each spike measures 5 inches long and comes in a box of 12, weighing 3 pounds total. The packaging is straightforward, with clear instructions. The spikes themselves are solid and heavy, suggesting they contain a concentrated amount of nutrients. The absence of a plastic cap or special applicator is a plus, as it reduces waste and hassle.

One potential downside is the manual effort required. You need to hammer each spike into the soil, which can be challenging in dense clay or rocky ground. Also, 12 spikes might not cover a large property with many trees; you'll likely need multiple boxes. The cost per spike is higher than some alternatives, but you're paying for convenience and long-lasting results.

For homeowners who want a no-fuss, mess-free way to fertilize their trees and shrubs, these spikes deliver. The durable construction, balanced nutrition, and slow-release action make them a practical choice. Just be prepared to do a little hammering and consider buying in bulk if you have a large landscape.

Size: 5 inches

Dimensions: 2.5 x 7 x 5.25 inches

Weight: 3 Pounds

Product Group: Lawn & Patio

Binding: Lawn & Patio

Jobe's Slow Release Evergreen Fertilizer Spikes are designed for anyone who wants to feed their cypress, arborvitae, pine, cedar, and other acid-loving trees without the mess of traditional granular fertilizers. Each pack contains five pre-measured spikes with an 11-3-4 NPK ratio, ensuring your evergreens get the nutrients they crave for lush growth and deep green color. This is a targeted solution for homeowners who prefer a simple, no-mix approach to tree care.

The standout feature here is the slow-release technology. Instead of dumping nutrients on the surface where they can wash away, these spikes deliver food directly to the root zone. You simply drive them into damp soil around the tree's drip line, and they break down gradually over several weeks. This means your trees get a consistent supply of nitrogen, phosphorus, and potassium without the risk of burning roots or creating runoff. It's a smart, efficient method that saves time and effort.

Build quality is solid: each spike is firm enough to push into most soils without bending or breaking, yet they dissolve steadily once in the ground. The 5-count pack is compact and easy to store, though it's best suited for small to medium-sized yards or specific spot treatments. For larger properties, you'll likely need multiple packs. Application is recommended twice a year (early spring and late fall), which fits naturally into a seasonal gardening routine.

One honest drawback is that this product is formulated exclusively for acid-loving evergreens. If you have a mix of trees in your yard, you'll need a different fertilizer for non-acid lovers. Also, the small pack size may not be ideal for big landscapes. However, for targeted feeding of a few key trees, these spikes are hard to beat.

Overall, Jobe's Slow Release Evergreen Fertilizer Spikes deliver on their promise of convenience and effectiveness. They remove the guesswork from tree feeding, reduce environmental waste, and keep your evergreens looking their best with minimal effort. If you want a clean, simple, and reliable way to nourish your acid-loving trees, this is a smart choice.

Jobe's Tree Fertilizer Spikes are a convenient, no-fuss solution for feeding deciduous trees and shrubs. Each pack contains 15 pre-measured spikes with a 16-4-4 NPK ratio, designed to provide a continuous supply of nutrients below the surface where roots are most active. This product is ideal for homeowners and gardeners who want to avoid the mess and hassle of traditional granular fertilizers, and it's especially suitable for those with smaller to medium-sized trees and shrubs.

The standout feature is the time-release technology. Once you push a spike into damp soil near the drip line, it gradually breaks down over weeks, releasing nutrients steadily. This eliminates the risk of fertilizer burn and reduces the need for repeated applications. Users report visible improvements in leaf color and overall vigor within a few weeks, and the lack of runoff means you're not wasting product or harming nearby plants. The spikes are also odorless, making them a much cleaner option than many organic or manure-based fertilizers.

In terms of design, the spikes are sturdy and uniform, with a pointed tip that makes insertion easier. However, in very hard or rocky soil you may need to pre-soak the ground or use a tool to create a pilot hole. Each spike feeds for about six weeks, so the 15-spike pack covers a good number of trees for a full season. The 2-pack doubles your coverage, which is convenient for larger yards. No mixing, measuring, or special storage is required.

One honest drawback is cost per application compared to bagged granular fertilizers. For large properties with many trees, the spikes can add up. Also, for very large trees, you may need more spikes than a single pack contains, requiring additional purchases. But for most homeowners with a handful of ornamental trees or fruit trees, the ease of use and precise feeding make it worthwhile.

Overall, Jobe's Tree Fertilizer Spikes deliver on their promise of mess-free, continuous feeding. They are a reliable choice for anyone who values convenience and wants to see healthy, thriving trees without the typical fertilizer headaches. If you have a few trees to care for and prefer a set-and-forget approach, these spikes are an excellent investment.