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  • Silver packaging of GrowScripts Orchard Tree Season-Long Care Kit with a red label on a white background
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Backyard & In-Ground Fruit Tree Fertilizer Kit

$44.99
$40.99
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You planted or potted up a fruit tree for the harvest, the loaded branches, the fruit you actually pick and eat, not for pale leaves and a handful of undersized fruit at the end of summer.

But once a tree moves into a large container or goes into the ground, it feeds from far more soil than a small patio pot, and the little kit that fed it before runs out long before the season does. Underfeed a growing tree and it tells you plainly: thin new growth, yellowing leaves, blossoms that drop instead of setting, fruit that never sizes up.

What growers want at this stage is simple. Feed the tree enough, at the right time, without turning it into a part-time job or a shelf full of half-used bags.

That is what this kit does. It carries enough season-long feeding, micronutrient support, and bloom and fruit support for a large container tree or a young to mid-size in-ground tree, applied as one simple routine instead of four.

Key features

Sized for large containers and young to smaller in-ground trees. One kit feeds a 30-gallon container tree, two 15-gallon trees, or three 10-gallon trees for a full season.
Controlled-release NPK 18-6-12, 6 to 8 month release. A nitrogen-forward, lower-phosphorus feed that releases over months rather than days.
Micronutrient foliar spray. Corrects hidden deficiencies with magnesium, manganese, zinc, and trace elements for fuller leaves and sturdier limbs.
Calcium and boron bloom support. Improves blossom quality and fruit set for larger, better-tasting harvests.
Pre-measured and simple. Complete fruit tree nutrition applied on a simple schedule, without the guesswork.

Ingredients

Everything in the kit, with a season application calendar:

  • Controlled-release NPK 18-6-12, 6 to 8 month release. 3 cups, net wt 24.6 oz (697.4 g), covers up to 15 sq ft. A nitrogen-forward, lower-phosphorus feed that releases over months rather than days.
  • Essential trace elements spray. 1 oz, net wt 1.2 oz (34 g), covers up to 312 sq ft. Magnesium, manganese, zinc, and trace elements for the deficiencies that show as yellowing leaves.
  • Calcium and boron nutrient spray. 1 oz, net wt 1.2 oz (34 g), covers up to 312 sq ft. Supports blossom quality and fruit set.

How to use

Three products, one simple rhythm. The kit includes a container-size chart and a week-by-week calendar.

  1. NPK 18-6-12 granule, feeds the roots. Apply the pre-measured pack around the base and root zone of the tree, at the amount for your tree or container size on the included chart. Reapply every two months through the growing season, for example March, May, and July. The coating keeps feeding between applications.
  2. Essential trace elements, for plant health. Apply as a foliar spray or as a soil drench. Foliar: mix one pack with 64 oz of water and spray the leaves every two weeks during active growth, more often if leaves yellow or show stress. Soil: mix one pack with 128 oz of water and drench the root zone for gentle feeding, any time to correct yellowing.
  3. Calcium, magnesium, and boron spray, for bloom and fruit. Apply as a foliar spray or as a soil drench, focused on bloom and fruiting. Foliar: mix one pack with 64 oz of water and spray every two weeks while flowers and fruit are present. Soil: mix one pack with 128 oz of water during bloom and fruit development.

Getting started, first month: week one, apply the granule to the base. Week two, apply the trace elements. Week three, apply the calcium spray. Week four, apply the trace elements again. Then keep the trace element and calcium rhythm going and reapply the granule every two months.

Why?

A tree in a large container or newly in the ground feeds from far more soil than a small pot, so it needs more to stay in steady growth, and the most common reason one of these trees underperforms is simply that it never gets fed enough to match its size. This kit gives a large-container or young in-ground tree complete season-long feeding and bloom support, so you get stronger growth, better fruit set, and a harvest that reflects what the tree can actually do.

Makes how much?

One kit feeds a single 30-gallon container tree, two 15-gallon trees, or three 10-gallon trees, and so on by total soil volume, or a young to mid-size in-ground tree, for a full growing season. Feeding one small patio tree in a 3-gallon pot or smaller? The Potted & Container kit is sized for that. Feeding a mature standard tree with a wide, established root zone? Plan on more than one kit to cover the full area.
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Silver packaging of GrowScripts Orchard Tree Season-Long Care Kit with a red label on a white background

Backyard & In-Ground Fruit Tree Fertilizer Kit

$44.99
$40.99

Frequently Asked Questions

How many trees will one kit feed?

It scales by total soil volume: a single 30-gallon container tree, two 15-gallon trees, or three 10-gallon trees, and so on, or a young to mid-size in-ground tree, for a full season. Follow the per-tree rate on the label.

What size and age of tree is this for?

It is built for large container trees and young to mid-size in-ground trees. For a single small patio tree in a 3-gallon pot or smaller, the Potted & Container kit is the better fit. For a mature standard tree with a wide root zone, plan on more than one kit.

Can I use this on in-ground trees, or only containers?

Both. It works for large containers and raised beds and for young to mid-size in-ground trees. Application differs slightly between the two, and both methods are covered in How to use.

Which fruit trees does it work on?

Apples, peaches, cherries, pears, plums, and other fruit trees. The nutrition supports growth, bloom, and fruit across common temperate fruit trees.

Is it safe for edible fruit?

Yes, when applied as directed on the label.

How is this different from the small kit?

Same feeding approach, scaled up. The small kit is sized for one tree in a 3-gallon pot or under, while this kit covers a large container tree, a few smaller potted trees, or a young to mid-size in-ground tree. If you have a single small potted tree, choose the Potted & Container Fruit Tree Fertilizer Kit instead.

All about feeding backyard and in-ground fruit trees

Feeding fruit trees in the ground

In-ground fruit trees draw their nutrients from a wide root zone that extends out to, and often beyond, the dripline, which is the circle on the ground beneath the outer tips of the branches. That is why fertilizer works best when it is spread in a band around the dripline rather than piled against the trunk, since the feeder roots that actually take up nutrients sit out at the edges of the canopy. As a tree grows and its canopy widens, that root zone grows with it, and the amount of nutrition the tree needs each season grows too, which is why this kit is sized for young to mid-size in-ground trees and larger trees are fed with more.

Why bigger and older trees need more fertilizer

A tree's nutritional demand scales with its size and its fruit load, so a mature producer needs far more feeding than a young tree putting on its first branches. When a tree is underfed, it tells you plainly through pale or yellowing leaves, short new growth, weak flowering, and small or sparse fruit. Feeding to match the tree's size keeps growth steady and gives the tree the resources to set and size a full crop instead of dropping fruit or coasting through a light year.

Pro tips for feeding a larger tree

Feed at the dripline, not the trunk, so the fertilizer lands where the feeder roots can reach it.

Time it to the season by feeding through active spring and summer growth and easing off in late season, since late feeding pushes tender growth that does not harden before winter.

Use new growth and leaf color as your gauge, because healthy trees hold green foliage and put on steady new growth, while pale leaves and short shoots signal it is time to feed.

Do not skip the micronutrients, since many of the deficiencies that show up as yellowing or weak growth come from missing magnesium, manganese, zinc, or iron rather than from a lack of nitrogen.

How this kit simplifies larger-tree care

Instead of buying and measuring three or four separate products, this kit combines steady controlled-release feeding, a micronutrient spray, and bloom support into one pre-measured routine you can actually keep. That consistency is what keeps a large-container or young in-ground tree in steady growth, since the difference between a tree that fruits and one that stalls usually comes down to whether the feeding happened on schedule at all.

Container or in-ground: which kit do you need?

If you are feeding one tree in a 3-gallon pot or smaller, the Potted & Container Fruit Tree Fertilizer Kit is sized for that. This kit steps up to large container trees and young to mid-size in-ground trees. For a mature standard tree with a wide, established root zone, plan on more than one kit to cover the full area.

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