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3-in-1 Olive Tree Fertilizer Kit for Small Container Olive Trees

$23.99
$19.99
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This Small Olive Tree Fertilizer Kit is the all-in-one feeding system designed specifically for potted olive trees like Arbequina, Koroneiki, Mission, and Manzanillo. Created for containers in a 3-gallon pot or smaller, this 3-part kit delivers the low-phosphorus, nitrogen-forward nutrition olives actually prefer, keeping your tree healthy and productive whether it lives on a patio, a balcony, or indoors by a bright window.

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Key features

Mediterranean-style nutrition: the nitrogen-forward, low-phosphorus ratio olives prefer, not a heavy, high-phosphorus feed.
Controlled-release fertilizer: feeds gradually for 6 to 8 months.
Micronutrient support: iron, manganese, zinc, copper, and molybdenum to prevent leaf yellowing and keep foliage a healthy gray-green.
Calcium and boron spray: strengthens stems and supports flowering and fruit set, and olives specifically need boron to set fruit well.
Sized for container and patio olives in a 3-gallon pot or smaller.

Ingredients

Controlled-release fertilizer (18-6-12 plus micronutrients): polymer-coated granules that supply nitrogen, potassium, magnesium, and trace elements, with the low phosphorus olives prefer.

Essential trace elements (iron, manganese, zinc, copper, molybdenum): a chelated micronutrient mix for greener leaves.

Calcium nutritional spray (calcium, magnesium, boron): supports stems, flowering, and fruit set.

How to use

  1. Feed the roots: spread the fertilizer granules evenly on top of the soil and water deeply. Apply every other month from late February through September.
  2. Feed the leaves: mix one trace element packet with 16 to 22 oz of water and spray to the point of run-off, or apply it to the soil. Repeat every few weeks during active growth and any time to correct yellowing.
  3. Support flowering and fruit: mix the calcium packet as directed and spray the leaves, or apply it to the soil, before and during flowering and fruit set.

Why?

Container olive trees cannot pull nutrients from the ground the way they would in a Mediterranean grove, so they rely entirely on you. This kit delivers steady root-to-leaf nutrition with the low phosphorus olives prefer, prevents yellowing, and supplies the boron olives need to set fruit, all without the heavy feeding that pushes soft leafy growth at the expense of olives.

Makes how much?

One kit feeds a single container olive tree in a 3-gallon pot or smaller for a full season, reapplied every couple of months through the growing season. For a larger potted olive or one growing in the ground, apply proportionally more.
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GrowScripts Olive Tree Care Kit packaging on a white background

3-in-1 Olive Tree Fertilizer Kit for Small Container Olive Trees

$23.99
$19.99

Frequently Asked Questions

Which olive trees is this for?

Potted olive trees, including Arbequina, Koroneiki, Mission, Manzanillo, and other container varieties grown on a patio, balcony, or indoors in bright light.

How often should I feed my potted olive?

Spread the granule every other month from late February through September, and apply the trace and calcium sprays every few weeks during active growth. The controlled-release granule feeds steadily for 6 to 8 months between applications.

Do olives need a lot of fertilizer?

No, and that is the point. Olives are lean feeders adapted to poor Mediterranean soils, and heavy or high-phosphorus feeding does more harm than good. This kit is nitrogen-forward and low in phosphorus, metered out slowly, so you feed the tree steadily without overdoing it.

Why isn't my olive tree setting fruit?

Olive fruiting depends on several things beyond feeding. Olives need a cool winter rest to flower, they are alternate-bearing so a heavy year is often followed by a light one, and they need boron to set fruit. This kit supplies boron through the calcium spray, which helps the nutritional side, but chill, tree age, and pollination also matter.

Why are my olive leaves yellowing?

Usually low nitrogen or iron, or sometimes overwatering, since olives dislike wet feet. Feed on schedule, correct with the trace spray, and make sure the pot drains freely.

Can I grow an olive tree indoors?


Yes, in bright light, though olives do best with a cool winter rest and plenty of sun, so a bright, unheated spot in winter suits them.

All about feeding container olive trees

Why container olives rely entirely on you

In a Mediterranean grove, an olive sends roots deep and wide through lean soil and largely feeds itself. In a pot, it has none of that, only the small volume of soil you give it, and every watering carries nutrients out the bottom. That makes steady, measured feeding important for a potted olive, but the emphasis is on measured, because the plant itself is built for lean conditions.

Olives like it lean, and that means low phosphorus

Olives evolved in poor, rocky soils, so they are among the lighter feeders you can grow, and they specifically dislike high phosphorus. Overfeeding an olive, especially with a heavy, balanced, or high-phosphorus fertilizer, tends to push soft leafy growth and can work against flowering and fruit. This kit uses an 18-6-12 ratio that is nitrogen-forward and low in phosphorus, released slowly, which matches what an olive actually wants rather than force-feeding it.

Boron and fruit set in olives

Among fruiting plants, olives are notably dependent on boron for good flowering and fruit set, and boron shortage is a common, quiet reason an olive flowers but fails to set. The calcium spray in this kit includes boron for exactly this reason, applied around flowering and fruit set to support the nutritional side of fruiting. It will not override the other things olives need to fruit, but it covers a requirement many general fertilizers miss.

Why olives skip years and need a cool winter

Two olive habits surprise new growers. First, olives are alternate-bearing, so a heavy crop one year is often followed by a light one, which is normal and not a feeding problem. Second, olives need a cool winter rest, a stretch of chilly weather, to trigger spring flowering, which is why an olive kept warm indoors year-round may grow well but never fruit. Feeding supports a healthy tree, but chill and the tree's natural rhythm set the crop.

Pro tips for container olive care

Use a fast-draining, gritty mix, since olives hate sitting wet.

Water deeply but let the soil dry between waterings, because olives tolerate drought far better than sogginess.

Do not overfeed, as lean, steady nutrition suits olives better than heavy doses.

Give the tree full sun, and a cool, bright winter rest if you want it to flower.

How the three-in-one system works

Olives need more than nitrogen, but they need it in the right, restrained proportions. The controlled-release 18-6-12 granule provides nitrogen-forward, low-phosphorus base nutrition that feeds gently for months. The trace element spray delivers the iron, manganese, zinc, copper, and molybdenum that keep foliage green. And the calcium, magnesium, and boron spray supports stems and, through its boron, the fruit set olives specifically depend on.

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