- How many spikes does one tree need?
- Placement depends on trunk diameter and canopy size; a mature citrus tree typically takes several spikes spaced evenly around the drip line. Follow the label rate rather than guessing.
- When should I apply them?
- Apply at the start of active growth in spring, and again in early summer for heavy feeders. Avoid feeding in late fall or winter when trees are dormant.
- Is 8-11-11 good for citrus?
- The higher phosphorus and potassium support flowering and fruit, while moderate nitrogen limits excessive leaf growth. It lacks the iron and zinc some citrus in alkaline soil need, so watch for yellowing leaves.
- Can I use these on other fruit trees?
- Yes, they are labeled for fruit trees generally, including apple, peach and pear. Adjust the number of spikes to tree size.
- Is the 160-count case worth it?
- At $15.94 at eBay as of November 7, 2026, the per-spike cost is low, so it pays off if you have several trees or feed more than once a season. A single small tree may not use the case before it ages.
- Where is the Jobe's Fertilizer Spikes Fruit & Citrus Tree 8-11-11 Case of 160 cheapest?
- At Lowe's, for $24.33, as of our latest check.
- Where can I buy the Jobe's Fertilizer Spikes Fruit & Citrus Tree 8-11-11 Case of 160?
- 3 stores we checked sell it, including Lowe's, eBay, DK Hardware.