Fertilizer Spikes for Citrus & Fruit Trees & Shrubs - 72 Spikes

In this review the reviewer found SimplyGro Fertilizer Spikes for Citrus & Fruit Trees & Shrubs to be a practical, low-effort option for home gardeners who want steady nutrient delivery without messy granules or regular liquid feeding. The main reason to buy is convenience: these pre-measured 5-in TruSpikes feed trees and shrubs below ground for up to 3 months, making them a good fit for busy gardeners who prefer a set-it-and-forget-it approach. The review covers performance, ease of use, and where these spikes fit into a seasonal feeding routine.

Key Features

• 8-4-8 Formula: The balanced 8% nitrogen, 4% phosphorus and 8% potassium mix is formulated to support vigorous leaf growth, root development and fruiting in citrus and fruit trees.
• Long-Lasting Feed: Each 5-in spike delivers continuous nutrition for up to 3 months, reducing the need for frequent applications during the active season.
• Pre-Measured Spikes: Pre-measured plant food reduces the risk of over-feeding and simplifies correct dosing for each tree or shrub.
• TruSpikes Durability: Patented TruSpikes are designed not to break, crush or smash, so they withstand handling and hammering into soil.
• Made in the USA: Manufactured domestically for consistent quality and predictable performance from batch to batch.

Who It's For

This product is ideal for home gardeners and property owners with citrus, fruit, nut or berry trees and shrubs who want an easy seasonal feeding method without measuring powders or mixing liquids. It especially suits those who prefer root-level feeding and a tidy application rather than broadcast granular fertilizers.

Gardeners seeking highly tailored micronutrient formulas, continuous year-round feeding, or precise control over timing and concentrations may want a different product or supplemental foliar feeds. These spikes are intended as a twice-yearly boost in spring and fall rather than a monthly complete program.

Pros & Cons

Pros

• Easy to install TruSpikes provide a tidy, low-mess way to feed at the root zone.
• Pre-measured 5-in spikes cut down on guesswork and reduce risk of over-fertilization.
• Customers report the spikes are effective at delivering nutrients and improving plant vigor.
• Durable design and made in the USA give confidence in product consistency.

Cons

• Designed for seasonal use; each spike lasts up to 3 months so gardeners needing more frequent feeding will need additional products.
• Formula is general for citrus and fruit trees, so users needing micronutrient-specific treatments may require supplements.

Specifications

Product	Fertilizer Spikes for Citrus & Fruit Trees & Shrubs
Count	72 spikes
Weight	18.0 lbs
Spike length	5 in
Guaranteed analysis	8-4-8 (N-P-K)
Duration per spike	Up to 3 months
Country of manufacture	Made in the USA

Our Verdict

SimplyGro Fertilizer Spikes offer a no-fuss, effective way to feed citrus and fruit trees and shrubs, delivering measured nutrition at the roots for up to 3 months. For gardeners who want predictable results with minimal effort, these durable TruSpikes represent good value as a twice-yearly treatment to support growth and fruiting.

Frequently Asked Questions

How often should I use these spikes?
Apply twice a year for best results: once in spring and once in fall to support active growth and energy storage.

Will the spikes break when hammered in?
The TruSpikes design is guaranteed not to break, crush or smash during normal installation.

Are these spikes suitable for all fruit trees?
They are formulated for citrus, fruit, nut and berry trees and shrubs; specific micronutrient needs may still require supplemental feeding.