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Repotting guide

When & how to repot Navel orange (Citrus sinensis 'Navel')

Also called Navel orange, Washington navel, Seedless orange.

More about navel orange

About Navel orange

Citrus sinensis 'Navel' · also called Navel orange, Washington navel · edible

Navel orange is a seedless, sweet dessert orange recognised by the small secondary fruit ('navel') at the blossom end. It ripens in winter–spring and is prized for fresh eating. Full sun, well-drained slightly acidic soil, and a long warm season are essential. Dwarf grafted forms suit containers and patios in cool climates.

Mature size: In ground: 4–6 m tall, 3–5 m spread; dwarf container form: 1.5–2 m tall

Watch for — Leaf curl and spider mites: Low humidity and dry air encourage two-spotted spider mites, causing stippled, curling leaves. Increase humidity, wash foliage with water, and treat with neem oil or insecticidal soap if infestation is confirmed.

How to tell navel orange needs repotting

Repotting on a calendar is less reliable than reading the plant. For navel orange, watch for these signs:

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 navel orange

Pot on seedlings as they grow; not a perennial repot. Navel orangeis grown for one season, so the question is really “how often to pot on” — keep moving it up before the roots circle. Evergreen, broadly rounded tree; compact and bushy on dwarfing rootstock.

What size pot to step navel orange up to

Pot navel orange 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 navel orange

Pot navel orange 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 navel orange

  1. Pot on before it is root-bound. Check navel orange regularly; move it up as soon as roots reach the edge of the cell or pot, not after they have circled.
  2. 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.
  3. 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.
  4. Pot into rich mix. Set it into fresh well-drained, slightly acidic sandy loam or loam at the same depth (tomatoes are the exception — they can go deeper to root along the stem).
  5. Water in and grow on. Water well, keep it in good light, and resume feeding once it is established and growing again.

Aftercare

Water navel orange 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 navel orange

Navel orange wants well-drained, slightly acidic sandy loam or loam. pH 5.5–6.5 is ideal. Avoid poorly draining clay or compacted ground. Use a citrus-specific container mix incorporating perlite for pot-grown trees to prevent root 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 navel orange — frequently asked questions

How often should you repot navel orange?

Pot on seedlings as they grow; not a perennial repot for navel orange. Navel orange 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, slightly acidic sandy loam or 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 navel orange need?

Pot navel orange 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. Use our pot size calculator to size it from the plant's current pot and root spread.

When is the best time of year to repot navel orange?

Pot navel orange 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.

Can you put navel orange straight into a much bigger pot?

No. Even a fast-growing navel orange 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 navel orange after repotting?

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

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