Jobe's Fruit Tree Fertilizer Spikes

Feed your fruit and citrus trees right where it matters — at the roots. Jobe's Fruit Tree Fertilizer Spikes deliver a continuous supply of nutrients underground, exactly where the tree needs them, with an 8-11-11 formula built for healthy growth and abundant fruit. The premeasured spikes make fertilizing effortless: no measuring, no mixing, no mess, and no wasteful runoff. Just drive them into the soil around the tree's dripline and the slow-release formula keeps feeding all season long. Each bag contains 5 spikes (net wt. 20 oz / 567 g).

Why You'll Like It

• Premeasured spikes — no measuring, no guesswork, no hazardous loose granules to handle
• Feeds at the roots — nutrients are delivered underground at the dripline, where the feeder roots take them up
• Slow-release, all season — a steady supply of nutrients instead of one quick flush
• No runoff or waste — the spikes release below the surface, so nutrients stay in the root zone rather than washing away
• 8-11-11 fruit-and-citrus formula — higher phosphorus and potassium to support flowering, fruiting, and root strength

How to Use

1. Water the soil thoroughly before inserting the spikes.
2. Space the spikes evenly around the tree's dripline (the outer edge of the branches, where feeder roots are most active).
3. Drive each spike into the ground with the plastic driving cap; insert below the soil surface.
4. Apply at the start of the growing season; reapply through the season per the package directions for continuous feeding.

Specifications

• Brand: Jobe's
• Formula: 8-11-11 (slow-release tree & shrub fertilizer)
• Guaranteed analysis: Total Nitrogen 8%, Available Phosphate (P₂O₅) 11%, Soluble Potash (K₂O) 11%
• Form: premeasured fertilizer spikes
• Count: 5 spikes per bag
• Net weight: 20 oz (1 lb 4 oz / 567 g)
• Best for: fruit trees, citrus trees, and other trees & shrubs
• Model: 02012

What Do the Numbers 8-11-11 Mean?

The three numbers on every fertilizer are its N-P-K ratio — the guaranteed percentages of the three primary plant nutrients by weight.

• 8 — Nitrogen (N): drives leafy, green growth. It's kept moderate here so trees put energy into fruit rather than excessive foliage.
• 11 — Phosphorus (P₂O₅): supports strong root development, flowering, and fruit set — key for a productive fruit or citrus tree.
• 11 — Potassium (K₂O): improves overall vigor, fruit quality, and the tree's resistance to drought and disease.

The higher phosphorus and potassium relative to nitrogen make 8-11-11 a fruiting-focused formula — ideal for encouraging blossoms and fruit on fruit and citrus trees. Stop by Garoppo's to pick some up, or order online for delivery or in-store pickup.