The Old Farmer's Almanac Tree & Shrub Fertilizer Spikes — Box of 24 (6 lb) TruSpikes, Slow‑Release 13-3-3, Mess-Free

The Old Farmer's Almanac Tree & Shrub Fertilizer Spikes are pre-measured 5-inch TruSpikes that deliver slow-release 13-3-3 nutrients directly into the root zone for healthier trees and shrubs.

Designed for gardeners who want a simple, mess-free way to feed woody plants, these TruSpikes pack concentrated nutrition and natural ingredients into a durable spike that hammers into the soil. Made in America and developed under The Old Farmer's Almanac garden brand, the spikes combine a 13-3-3 N-P-K formula with natural additives like molasses to help nutrients reach roots steadily without dust or crumbling. The box contains 24 spikes totaling 6 pounds — enough for multiple trees and shrubs depending on size.

How do these spikes feed trees and shrubs?

The spikes are inserted into the root zone and release nutrients gradually where roots can access them most effectively. Because the formulation is concentrated and slow-release, you avoid surface runoff and reduce frequent applications. Natural components help support microbial activity that aids nutrient uptake.

• 13% Nitrogen for foliage vigor and color
• 3% Phosphorus to support blooms and fruiting
• 3% Potassium for root strength and stress tolerance
• Molasses and natural carriers to promote steady release

When and how often should I use the spikes?

For routine maintenance, apply once per season: early spring and again in late fall if desired. Insert spikes into the soil around the dripline or where feeder roots are concentrated, spacing them according to trunk diameter or plant size. One seasonal application supplies sustained nutrition without repeated surface feeding.

• Recommended: one application in early spring; optional repeat in late fall
• Place spikes near dripline and feeder roots, not against trunk bark
• Follow spacing guidance based on plant size for even coverage

Are the TruSpikes easy to use and durable?

Yes — the patented 5-inch TruSpikes are molded to be hammered into soil without needing a protective cap. They resist breaking, chipping, and dusty residue, so installation stays clean and simple. This makes them practical for gardeners who prefer a quick, low-mess option versus granular or liquid fertilizers.

• Durable construction: not prone to shattering or crumbling
• No cap needed, so you can tap them into soil quickly
• Pre-measured doses reduce the chance of over-application

What plants benefit most from these spikes?

The spikes are formulated for trees, shrubs, and evergreens that benefit from a balanced, slow-release boost. They work well for ornamentals, small fruit trees, and landscape shrubs where a targeted root-zone feeding is preferred. Avoid use on newly planted seedlings until roots are established.

• Ideal for mature and established trees and shrubs
• Suitable for evergreens, ornamentals, and small fruit trees
• Not recommended for very young transplants until established

Who is this for: Gardeners, landscape professionals, and homeowners who want a no-fuss, reliable way to feed woody plants will appreciate these TruSpikes. If you prefer a clean application, pre-measured dosing, and products developed by a trusted American gardening brand, The Old Farmer's Almanac Tree & Shrub Fertilizer Spikes offer a convenient seasonal feeding option that targets nutrients to the root zone.

Ingredients

Molasses, Urea and Bone Meal.