Understanding Apple Trees: Lessons from a Red Spy

I recently picked up a Red Spy apple tree from Family Farm and Home for $40—honestly, a steal for a somewhat hard-to-find variety with a few years of growth already behind it. Red Spy is an old-school apple, especially prized for baking, and it happens to bloom around the same time as two of my other trees: Harrison and Golden Russet. That timing matters more than most people realize.

Apple trees can’t pollinate themselves. If you want fruit, you need at least one other compatible variety blooming at the same time. Think of it less like planting a tree and more like building a small ecosystem of cooperation.

Some varieties play nicer than others. Winesap, for example—one of my grandfather’s favorites—is what I’ve come to think of as a “selfish lover.” It needs two other apple varieties for pollination and doesn’t return the favor by helping pollinate others. Still, if you ever see a Winesap at a farmer’s market or store, buy it. It’s a fantastic apple, and without demand, varieties like this tend to quietly disappear.

A Common Planting Mistake

After bringing my Red Spy home, I noticed a fixable but important issue: it had been planted too deep.

With grafted apple trees, there’s a visible union where the scion (the fruit-producing cutting) is joined to the rootstock. That graft should sit above the soil line. In this case, it was buried.

Why does that matter?

If the scion is underground, it can start growing its own roots. When that happens, the tree essentially overrides the rootstock and reverts to its natural size. Instead of staying a manageable semi-dwarf (around 10–14 feet), it can grow into a full-sized tree—closer to 30 feet tall.

That’s not inherently bad, but it makes pruning, and especially harvesting much more difficult. A ladder becomes less of a convenience and more of a necessity.

The Hidden Truth About Apples

Here’s something most people don’t know: every apple seed produces a genetically unique tree.

That means if you plant a seed from a Red Delicious apple, you won’t get another Red Delicious tree. You’ll get something entirely new—often inferior, sometimes interesting, but unpredictable.

So how do we get consistency in orchards and grocery stores?

Through grafting.

Farmers take cuttings (scions) from a known variety and graft them onto rootstocks. This allows them to replicate the exact genetics of a specific apple. In a very real sense, every Red Delicious apple you’ve ever eaten traces back to a single original tree.

Once you understand that, apple orchards start to look less like collections of individual trees and more like carefully managed clones—each chosen for flavor, storage, disease resistance, or growth habit.

Why This Matters

Growing apples isn’t just about planting a tree and waiting. It’s about understanding relationships—between varieties, between rootstock and scion, and between human intention and natural growth.

A small detail like planting depth can change the entire future of a tree. A missing pollinator can mean no fruit at all. And a forgotten variety can disappear if people stop looking for it.

In a way, tending apple trees is part horticulture, part stewardship.