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Judas tree in a pot

Updated: October 2026

Your patio has one square metre of sun and no lawn to dig. The amazon.co.uk listing asks whether a Judas tree can grow in a pot and leaves the answer blank. This Judas tree in a pot page explains why Cercis siliquastrum outgrows a permanent container, how to keep a young plant in a pot for a few years, and what to buy if the balcony is the only site forever. The product table lives on the [Judas tree comparison](/hub/trees-and-palms/judas-tree). Products Compared used RHS and Hayloft notes checked 19 October 2026. Affiliate links may earn a commission at no extra cost to you.

Your patio has one square metre of sun and no lawn to dig. The amazon.co.uk listing asks whether a Judas tree can grow in a pot and leaves the answer blank.

Our top picks

Akplants Judas tree sapling (Cercis siliquastrum)

Best overall

Akplants Judas tree sapling (Cercis siliquastrum)
7.1/10about £12.50
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Ipsa Ipsa Chinese redbud seeds (10)

Best value

Ipsa Ipsa Chinese redbud seeds (10)
5.7/10about £2.96
View offer
Ipsa Ipsa eastern redbud seeds (15)

Alternative

Ipsa Ipsa eastern redbud seeds (15)
5.3/10about £4.42
View offer
On this page
  1. 1.Why the species outgrows a pot
  2. 2.Keeping a young plant in a container
  3. 3.What to buy if the patio is permanent
  4. 4.What the Amazon listings actually say

Why the species outgrows a pot

The RHS ultimate height for Cercis siliquastrum is 8–12 m, with spread wider than 8 m over twenty to fifty years. Gardeners' World puts a twenty-year size at about 4.5 m by 4 m. A balcony pot is not a root run for that tree. Hayloft is blunt: Cercis grows best in the ground. Large containers are possible for a while, but smaller species suit pots better. You can raise a young plant in a tub for a few years. Plan to plant out when roots fill the container, or choose a smaller species and often a named patio cultivar. Avondale on Cercis chinensis appears on Gardeners' World's trees-in-pots list, not Cercis siliquastrum. None of the Amazon ASINs in this set is Avondale. H5 applies to established in-ground plants. A pot freezes faster than soil. Treat container life as a nursery stage. Open-ground planting is on how to grow a Judas tree.

Keeping a young plant in a container

If you already have the twelve-inch Akplants sapling, the top pick when you want a plant rather than seed, use a frost-proof pot only slightly larger than the rootball, then step up as Hayloft advises. Drainage holes are non-negotiable. Add grit to a loam-based mix such as John Innes No. 3 if you follow Gardeners' World's general advice for trees in pots. Partial shade helps stop the compost drying to dust on a south-facing rail. Hayloft notes pots prefer partial shade partly for that reason. Water weekly in the growing season when the top few centimetres dry. Reduce in winter, and do not leave roots frozen in a waterlogged saucer. Feed lightly in spring. Soft growth from overfeeding burns in frost. Move a young pot to shelter on the coldest nights. One UK review kept the comparison sapling indoors and it died. That is the wrong container story. Another liked the very small size for bonsai. Bonsai is root pruning and training, not what the listing promises, and not a 4 m patio tree. When roots circle the pot, plant into the ground or accept a bonsai experiment.
Akplants Judas tree sapling (Cercis siliquastrum)

Testsieger

Akplants Judas tree sapling (Cercis siliquastrum)
7.1/10about £12.50
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What to buy if the patio is permanent

If the only garden is a balcony, shop for a compact redbud cultivar from a nursery, not a species packet marketed as Judas tree. The RHS lists Cercis chinensis at about 2.5–4 m. Avondale is the name Gardeners' World repeats for Chinese redbud in pots. Those plants are not in the five Amazon rows. Prices and forms are on the Judas tree buying guide. Ten Cercis chinensis seeds at about £2.96 are best value as cash, and they are species seed, not Avondale. You might grow a smaller Cercis than Cercis siliquastrum and still wait years for a tidy patio tree. Eastern redbud seed (B08P25CVHP) suits some dappled courtyards, but seed is not a guaranteed compact form. The species split is on Judas tree vs eastern redbud. Budget for a frost-proof pot. Gardeners' World suggests roughly 45–50 cm for serious pot trees, and for planting out within a few years if you chose Cercis siliquastrum anyway.

What the Amazon listings actually say

The Akplants sapling listing asks whether it can grow in a pot and does not answer in prose. Attributes say outdoor use. The pot question on Ipsa seed listings is similarly unanswered. Bullets claim high germination without figures. No row in this set should be read as designed for a permanent patio Judas tree.

Common questions

Can I grow a Judas tree in a pot for good?
Not if for good means a full Cercis siliquastrum at RHS size. Use a pot as a temporary stage, or choose a compact cultivar from a nursery.
How big a pot does a young plant need?
One size up from the rootball, with drainage, then step up occasionally. A twelve-inch sapling does not belong in a half-barrel on day one.
Will the 12-inch sapling stay small?
It will stay small only if root and shoot growth are restricted, as in bonsai, or if the plant dies. Otherwise it grows toward metres, not inches.
Is a bonsai the same as a patio tree?
No. Bonsai is trained and root-pruned. A patio tree needs a large volume of compost and a species that tolerates container life.
Which Cercis is actually sold for patios?
Nurseries market Avondale and similar cultivars, not the species seed packets in this Amazon set.
Do the Amazon packets answer the pot question?
No. The listings ask and leave the answer blank, or the attributes say outdoor only.
How do I water a Cercis in a container?
Keep compost moist but not soggy in growth. Reduce in winter. Make sure saucers do not hold ice water around the roots.
When do I stop potting on and plant it out?
When the next pot would be impractical on your balcony, or when you have a bed ready, whichever comes first for a Cercis siliquastrum.

Related pages

Best Judas tree

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Judas tree buying guide: species, seed or a sapling

How to grow a Judas tree: site, planting and water

Cercis siliquastrum vs canadensis: UK size and shade

Sources

Public UK sources used for this comparison. Listing prices, stars and review counts are the amazon.co.uk figures saved for this set on 19 October 2026.

  1. RHS: Cercis siliquastrum (retrieved 19 October 2026)
  2. RHS: Cercis canadensis (retrieved 19 October 2026)
  3. RHS: Cercis chinensis (retrieved 19 October 2026)
  4. BBC Gardeners' World: how to grow a Judas tree (retrieved 19 October 2026)
  5. BBC Gardeners' World: Cercis siliquastrum (retrieved 19 October 2026)
  6. Hayloft: how to grow Cercis (retrieved 19 October 2026)
  7. GOV.UK: issuing plant passports in Great Britain (retrieved 19 October 2026)
  8. Oxford Plants 400: Cercis (retrieved 19 October 2026)