The Old Farmer's Almanac Evergreen Tree & Shrub Fertilizer Spikes 10-4-10 — 12-Pack (3.0 lb) Slow‑release with Magnesium

Keep your firs, pines and landscape evergreens healthy without messy granules or guesswork. Each durable TruSpike contains a balanced 10-4-10 NPK blend with added magnesium and is designed to be hammered into soil at the root zone for steady nutrient delivery. Made in the USA, the 12-spike pack (3.0 lbs) is intended for routine seasonal use—typically early spring and late fall—to support needle color, root strength and overall vigor.

How do these fertilizer spikes simplify feeding trees and shrubs?

TruSpikes remove measuring and spreading. Each spike is pre-dosed so you place one unit where roots will access nutrients, avoiding runoff and uneven application. They are engineered to resist breaking so they can be installed quickly with a hammer.

• Pre-measured spikes eliminate weighing or scooping
• Durable design prevents crumbling and dusty residue
• Direct root-zone delivery reduces surface runoff and waste
• Simple hammer-in installation—no caps or tools required

What nutrients are in the 10-4-10 formula and why do they matter?

The formula supplies nitrogen, phosphorus and potassium in a standard landscape ratio plus magnesium for foliage health. Nitrogen helps maintain green, vigorous needles; phosphorus supports flowering and root development; potassium helps overall plant stress tolerance. The targeted release concentrates nutrition where the roots can use it most.

• 10% Nitrogen for greener needles and leaf growth
• 4% Phosphorus to support root and reproductive development
• 10% Potassium to aid overall plant strength
• 6% Magnesium to assist chlorophyll and color retention

When and how often should I use the spikes for best results?

Apply spikes twice per year as a base program—early spring and late fall. In hotter or drier climates or during periods of known stress, a mid-summer application can be added. Placement matters: distribute spikes around the dripline where feeder roots are concentrated.

• Standard schedule: early spring and late fall
• Optional mid-summer feed for stress-prone conditions
• Place spikes near dripline and root zone, not against trunk
• Follow spacing guidelines for tree size to avoid overfeeding

Are these spikes safe for my landscape and easy to store?

The Old Farmer's Almanac TruSpikes are formulated to minimize surface waste and runoff by delivering nutrients underground. The solid, non-crumbly construction keeps storage tidy and reduces dust during handling. Keep unused spikes dry and stored in their original packaging to maintain product integrity.

• Root-zone application limits runoff and fertilizer drift
• Durable spikes reduce messy dust and breakage
• Store in a cool, dry place in original container
• Follow local fertilizer ordinances and label directions

Who is this for? Landscapers, gardeners and homeowners with evergreen trees, conifers and ornamental shrubs who want a low-effort, consistent feeding method. These spikes suit people who prefer a neat, pre-measured solution that delivers nutrients where roots can use them, without spreading granules or frequent reapplication. They work well for individual specimen trees, grouped shrubs and for routine seasonal maintenance across a yard or property.

Ingredients

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