Repotting guide

When & how to repot Almond 'Marcona' (Prunus dulcis 'Marcona')

Also called Marcona almond, Spanish almond.

More about almond 'marcona'

About Almond 'Marcona'

Prunus dulcis 'Marcona' · also called Marcona almond, Spanish almond · edible

'Marcona' is the famed Spanish almond, producing short, rounded, plump kernels with a rich, buttery, slightly sweet flavour prized for snacking and confectionery. Largely self-sterile, it crops best with a pollinator. This Mediterranean tree needs full sun, sharp drainage, and warm, dry summers; its hard shell and late-ish bloom suit traditional dry-farmed orchards.

Mature size: About 4-6 m tall and wide on standard rootstock, controllable by pruning and rootstock.

How to tell almond 'marcona' needs repotting

Repotting on a calendar is less reliable than reading the plant. For almond 'marcona', watch for these signs:

Roots circling the bottom of the module or pot, or poking out of the drainage holes.
The seedling dries out within a day and growth has visibly stalled.
Roots are white and matted in a tight spiral when you tip the plant out.
It has outgrown its current container for the stage of the season — pot almond 'marcona' on before it becomes hard root-bound.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot almond 'marcona'

Pot on seedlings as they grow; not a perennial repot. Almond 'Marcona'is grown for one season, so the question is really “how often to pot on” — keep moving it up before the roots circle. Medium-vigour, rounded deciduous tree with a fairly dense, spreading canopy; pale-pink to white spring blossom..

What size pot to step almond 'marcona' up to

Pot almond 'marcona' on gradually — a seedling jumped straight into a huge pot sits in cold, wet, airless soil and stalls. Step up one or two sizes at a time as the roots fill each container, finishing in a large final pot or the ground. The aim is roots that never circle and never check.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot almond 'marcona'

Pot almond 'marcona' on through the active growing season, whenever roots fill the current container — there is no single date, just "before it becomes root-bound". Avoid potting on during a cold snap.

Step-by-step: repotting almond 'marcona'

Pot on before it is root-bound. Check almond 'marcona' regularly; move it up as soon as roots reach the edge of the cell or pot, not after they have circled.
Step up one or two sizes. Choose the next container up — not a giant one. Cold, wet, unused soil around a small root system stalls seedlings.
Knock it out gently. Support the stem, tip the pot, and ease the rootball out without breaking it. A little teasing of circled roots at the base is fine.
Pot into rich mix. Set it into fresh well-drained, even stony or calcareous loam at the same depth (tomatoes are the exception — they can go deeper to root along the stem).
Water in and grow on. Water well, keep it in good light, and resume feeding once it is established and growing again.

Aftercare

Water almond 'marcona' in well and keep it in bright light; a freshly potted-on seedling can wilt for a day while roots settle, so do not overcompensate by drowning it. Do not fertilise for about 1 week — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for almond 'marcona'

Almond 'Marcona' wants well-drained, even stony or calcareous loam. Adapts to lean, rocky Mediterranean soils and tolerates some lime; pH around 6.5-8.0 is workable. Sharp drainage is essential to prevent root and crown rot. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting almond 'marcona' — frequently asked questions

How often should you repot almond 'marcona'?

Pot on seedlings as they grow; not a perennial repot for almond 'marcona'. Almond 'Marcona' is a seasonal crop, so you pot it on as a growing plant rather than repotting a perennial. Step seedlings up gradually into well-drained, even stony or calcareous loam so the roots never circle the cell, ending in a large final container. A root-bound transplant stalls and never fully recovers.

What size pot does almond 'marcona' need?

When is the best time of year to repot almond 'marcona'?

Can you put almond 'marcona' straight into a much bigger pot?

No. Even a fast-growing almond 'marcona' should only go up one pot size at a time. A vastly oversized pot holds a reservoir of wet soil the roots cannot reach, which stays cold and soggy and rots the roots — the opposite of what you wanted.

Should you fertilise almond 'marcona' after repotting?

Not immediately. Wait about 1 week after repotting almond 'marcona'. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.