How to Grow an Apple Tree From Seed (Read This First)

You can grow an apple tree from a seed, and it is a genuinely good project. What you cannot do is grow that apple. The seed inside the Honeycrisp you just ate will not produce a Honeycrisp — it will produce something that has never existed before, and probably will not be very nice.

That is not a failure of technique. It is how apples work, and knowing it up front changes what you plant the seed for.

Why apples never come true from seed

Apples are extreme outbreeders. They are self-incompatible — a flower generally cannot be fertilised by its own pollen — so every apple on a tree was pollinated by a different variety, often whatever was flowering nearby. The seed therefore carries genes from two parents, and apples are unusually heterozygous, meaning those genes vary enormously.

The practical consequence is that each seed is a genuine lottery ticket. Growers have understood this for centuries, which is why every named variety — Granny Smith, Gala, Bramley — exists as clones. Somebody found one exceptional seedling, and every tree of that variety since has been a piece of wood cut from it and grafted onto a rootstock.

Cold stratification is the whole trick

Apple seeds are dormant on purpose. A seed that germinated the moment it hit the ground in autumn would produce a tender seedling just in time for winter to kill it. The seed therefore requires a prolonged cold, moist period before it will respond to warmth — a chemical countdown that only runs at low temperature.

Simulating that is straightforward:

Check the bag every couple of weeks. Discard any seed that has gone furry, re-damp the towel if it has dried, and reseal. Toward the end you will often see seeds split and push a white root out inside the bag — pot those immediately rather than waiting for their siblings.

Growing the seedling on

Sow half an inch deep in ordinary potting mix, keep it bright and lightly moist, and expect seedlings in two to four weeks. From there it is an unremarkable young tree: pot up as the roots fill each container, harden it off before it lives outside permanently, and give it sun.

The one thing seedling apples dislike is being pot-bound. A seedling left too long in a small pot stalls and often never fully recovers its vigour, so move it up a size before it needs to.

The move that makes it worthwhile

Here is the part most seed-growing guides leave out. You do not have to choose between “a free tree from a seed” and “a known apple variety”. You can have both, from the same plant.

Grow the seedling for a year or two until the stem is roughly pencil-thick. Then graft a scion — a short length of dormant wood — from a variety you actually want onto it. The seedling becomes the rootstock, supplying roots and vigour, and the grafted top produces the named apple, usually within a few years rather than a decade.

That is precisely what commercial nurseries do, and it turns a lottery ticket into a real fruit tree. The one trade-off is vigour: a seedling rootstock produces a full-size tree, where nursery trees use dwarfing rootstocks to keep them pickable from the ground.

What to do with a seedling you let run

If you keep the seedling as it is, you get a large, generally healthy, long-lived tree, and in six to ten years, an apple nobody has ever tasted. Odds are it will be sharp, small, or bland.

That is still worth something. Sharp seedling apples make far better cider than dessert varieties do, cooking apples only need to break down well, and a mature apple tree feeds birds and pollinators regardless of how the fruit tastes to you. And there is the small, real chance that yours is the one worth naming.