The Old Farmer's Almanac Evergreen Tree & Shrub Fertilizer Spikes 12-Pack 10-4-10 — TruSpike, season-long root feeding

These pre-measured TruSpike fertilizer stakes from The Old Farmer's Almanac deliver 10-4-10 nutrition directly to evergreen and ornamental shrub root zones for simple, no-mess feeding.

Keep evergreens, firs and ornamental shrubs healthy without guesswork: each durable spike contains a balanced 10-4-10 formula plus magnesium and is driven into the soil to feed roots where it matters. The patented TruSpike design resists breaking and dust, so a quick hammer-in gives season-long nutrient release and minimizes runoff compared with granular fertilizers.

How easy is it to apply these fertilizer spikes?

Application is designed to be fast and tool-friendly: no measuring, no mixing, and no caps to remove. Just position the spike near the root zone and tap it into the ground with a hammer until the top is near soil level. Because the TruSpike is solid and durable, it won’t crumble under impact, making installation cleaner and quicker than crumbly spikes.

• Place each spike within the dripline or as directed for the plant size.
• Tap in with a hammer until the spike is secure—no special equipment needed.
• Apply twice a year—early spring and late fall; add a summer application if plants show stress.

What nutrients do these spikes supply and why do they matter?

Each spike delivers a 10-4-10 NPK ratio—higher nitrogen and potassium with moderate phosphorus—to support needle and foliage color, root strength, and reproductive growth such as cones or blooms. The spikes also include supplemental magnesium to assist in maintaining healthy green foliage. Because nutrients are released at the root zone, plants can access them more efficiently than surface-applied products.

• 10% Nitrogen promotes green, vigorous foliage.
• 4% Phosphorus supports flowering, coning and root development.
• 10% Potassium strengthens roots and overall plant hardiness.
• 6% Magnesium helps maintain healthy needle and leaf color.

Will these spikes reduce waste and runoff in my landscape?

Yes—pre-measured spikes are placed directly into the root zone so nutrients are released where roots can take them up, reducing surface loss and runoff common with broadcast fertilizers. The solid TruSpike construction minimizes crumbling or dust, preventing granular scatter and helping ensure the intended dose reaches the plant. This targeted approach also simplifies timing and helps avoid accidental over-application.

• Direct root-zone placement minimizes nutrient runoff.
• Pre-measured dosage removes guessing and overfeeding risks.
• Durable spikes prevent breakage and messy residues.

How often should I use the Evergreen Tree & Shrub Fertilizer Spikes?

For most climates and species, apply spikes twice yearly—once in early spring and once in late fall—to support seasonal growth cycles. In regions with intense summer heat or for plants under extra stress, a mid-summer application can help maintain vigor. Always follow spacing and quantity guidance suited to each tree or shrub size to avoid overfertilizing.

• Standard schedule: early spring and late fall.
• Optional: one additional summer application for stressed plants.
• Adjust number of spikes by trunk diameter or root spread as recommended.

Who is this product for: Gardeners, landscapers and property owners who prefer low-mess, pre-measured fertilizing solutions will appreciate these TruSpikes. They suit anyone caring for evergreen trees, conifers, firs and ornamental shrubs who wants straightforward application, precise dosing at the roots, and a durable spike that won’t crumble under use. Made in the USA and sold as a 12-spike pack (3.0 lbs total), this item is intended for seasonal maintenance of landscape evergreens rather than rapid correction of severe nutrient deficiencies.

Ingredients

Corn Gluten Meal, Urea, Muriate of Potash, Superphosphoric Acid, Potassium Polyphosphate, Calcined Brucite, Ammonium Phosphate.