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Repotting guide

When & how to repot Autumn Olive (Elaeagnus umbellata)

Also called autumn olive, autumn elaeagnus, Japanese silverberry.

More about autumn olive

About Autumn Olive

Elaeagnus umbellata · also called autumn olive, autumn elaeagnus · edible

Autumn olive is a vigorous, silvery-leaved deciduous shrub bearing fragrant cream flowers and abundant speckled red, lycopene-rich berries. Nitrogen-fixing and tough on poor soils, it crops heavily in full sun. Note that it is highly invasive across much of North America, so plant only where permitted and where spread can be controlled.

Mature size: Typically 3-5 m tall and as wide (10-16 ft); needs space and regular containment.

How to tell autumn olive needs repotting

Repotting on a calendar is less reliable than reading the plant. For autumn olive, 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 autumn olive

Pot on seedlings as they grow; not a perennial repot. Autumn Oliveis grown for one season, so the question is really “how often to pot on” — keep moving it up before the roots circle. Large, fast-growing, multi-stemmed deciduous shrub with arching, sometimes thorny branches and distinctive silvery-scaled leaf undersides; spreads readily by seed..

What size pot to step autumn olive up to

Pot autumn olive 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 autumn olive

Pot autumn olive 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 autumn olive

  1. Pot on before it is root-bound. Check autumn olive 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 almost any well-drained soil, even poor and sandy 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 autumn olive 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 autumn olive

Autumn Olive wants almost any well-drained soil, even poor and sandy. Exceptionally adaptable; as a nitrogen-fixer it thrives on infertile, sandy, gravelly, or disturbed ground and tolerates pH from about 5.5 to 8.0. Only truly waterlogged soils are unsuitable. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting autumn olive — frequently asked questions

How often should you repot autumn olive?

Pot on seedlings as they grow; not a perennial repot for autumn olive. Autumn Olive is a seasonal crop, so you pot it on as a growing plant rather than repotting a perennial. Step seedlings up gradually into almost any well-drained soil, even poor and sandy 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 autumn olive need?

Pot autumn olive 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 autumn olive?

Pot autumn olive 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 autumn olive straight into a much bigger pot?

No. Even a fast-growing autumn olive 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 autumn olive after repotting?

Not immediately. Wait about 1 week after repotting autumn olive. 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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