Repotting guide

When & how to repot Sihong Jujube (Ziziphus jujuba 'Sihong')

Also called Sihong jujube.

More about sihong jujube

About Sihong Jujube

Ziziphus jujuba 'Sihong' · also called Sihong jujube · edible

'Sihong' is a Chinese jujube cultivar grown for large, sweet, crisp fruit excellent fresh, named for the Sihong region. A heat- and drought-tolerant deciduous tree, it crops reliably in hot summers and poor, alkaline soils where other fruit fails. Like most jujubes it is partially self-fertile but fruits more heavily with a second cultivar for cross-pollination.

Mature size: 3-6 m tall (10-20 ft); root suckers can widen the spread

Watch for — Poor ripening in cool summers: Without sustained heat the fruit fails to develop its characteristic crisp sweetness. In marginal climates plant in the hottest, most sheltered spot.

How to tell sihong jujube needs repotting

Repotting on a calendar is less reliable than reading the plant. For sihong jujube, 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 sihong jujube 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 sihong jujube

Pot on seedlings as they grow; not a perennial repot. Sihong Jujubeis grown for one season, so the question is really “how often to pot on” — keep moving it up before the roots circle. Upright, vigorous deciduous tree with glossy leaves and characteristic zigzag branching; suckers from the roots. Leafs out and flowers late, with small fragrant yellow-green flowers borne over a long period..

What size pot to step sihong jujube up to

Pot sihong jujube 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 sihong jujube

Pot sihong jujube 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 sihong jujube

Pot on before it is root-bound. Check sihong jujube 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 soil; tolerant of sand, clay, salt and alkalinity, ph 5.5-8.5 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 sihong jujube 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 sihong jujube

Sihong Jujube wants well-drained soil; tolerant of sand, clay, salt and alkalinity, ph 5.5-8.5. Grows in poor and alkaline ground that defeats most fruit trees. The essential requirement is free drainage; it dislikes heavy waterlogged soils. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting sihong jujube — frequently asked questions

How often should you repot sihong jujube?

Pot on seedlings as they grow; not a perennial repot for sihong jujube. Sihong Jujube 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 soil; tolerant of sand, clay, salt and alkalinity, ph 5.5-8.5 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 sihong jujube need?

When is the best time of year to repot sihong jujube?

Can you put sihong jujube straight into a much bigger pot?

No. Even a fast-growing sihong jujube 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 sihong jujube after repotting?

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