Repotting guide

When & how to repot Forsythia 'Show Off' (Forsythia × intermedia 'Mindor')

Also called Show Off Forsythia.

More about forsythia 'show off'

About Forsythia 'Show Off'

Forsythia × intermedia 'Mindor' · also called Show Off Forsythia · flowering

Forsythia 'Show Off' (cultivar 'Mindor') is a compact, densely branched selection bred for a profusion of deep-yellow flowers packed tightly along short internodes. It blooms more heavily and on a smaller, tidier frame than older forsythias, fitting beds and foundations where 'Lynwood Gold' grows too large, while keeping the same easy, cold-hardy nature.

Mature size: 1.5-1.8 m tall and 1.8-2.1 m wide

Watch for — Reduced bloom from mistimed pruning: Flowers form on the previous year's wood, so pruning in late summer, autumn, or winter removes next spring's display. Prune only right after flowering and only lightly, given its naturally compact form.

How to tell forsythia 'show off' needs repotting

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

Roots spiralling thickly out of the drainage holes or pushing the whole plant up out of the pot.
The pot is so packed that water runs straight through in seconds and barely wets the soil.
It has split a plastic pot, or the rootball is a solid mass with almost no soil left when you slide it out.
Growth and (for forsythia 'show off') flowering have clearly stalled despite good light and feeding — but remember this plant likes being snug, so a little crowding alone is not a reason to repot.

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 forsythia 'show off'

Only every 2–4 years, when genuinely crowded. Forsythia 'Show Off' is one of the plants that genuinely prefers a snug pot — it grows and flowers better with its roots a little restricted, so resist the urge to repot it on schedule. Compact, rounded, densely branched deciduous shrub with short internodes that pack flowers along the stems. Slower and far tidier than older forsythias, it holds a neat shape with only light shaping after bloom..

What size pot to step forsythia 'show off' up to

Go up only one pot size — roughly 2–3 cm (about an inch) wider in diameter, no more. Forsythia 'Show Off' positively prefers a snug pot: it flowers and grows better when the roots are a little restricted. The single biggest repotting mistake here is over-potting — dropping forsythia 'show off' into a pot two or three sizes up. All that surplus soil holds water the small root system cannot use, stays cold and wet, and rots the roots within weeks. When in doubt, choose the smaller pot.

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 forsythia 'show off'

Early spring, just as new growth restarts, is the ideal window for forsythia 'show off'. The plant is moving into its strongest growth phase and re-roots into fresh soil quickly. Avoid repotting in winter dormancy or, for flowering plants, while it is in bud or bloom — recovery is slowest then and you risk dropping the flowers.

Step-by-step: repotting forsythia 'show off'

Confirm it actually needs it. Slide forsythia 'show off' out and check the roots. Only continue if it is genuinely packed — this plant prefers a snug pot, so if there is still soil and room, put it straight back.
Pick a pot only one size up. Choose a pot just 2–3 cm wider with good drainage. Resist anything bigger; over-potting is the main killer here.
Ease it out gently. Water lightly the day before, then tip forsythia 'show off' out, supporting the base. Tease the outer roots free only enough to stop them circling.
Repot at the same depth. Add a layer of fresh adaptable, well-drained soil of any moderate fertility, set the plant so the soil line sits exactly where it did before, and backfill around the sides, firming lightly.
Settle it in. Water once to settle the soil, then let it sit. Hold off on more water until the top of the soil dries — fresh soil around a small root system stays wet for a while.

Aftercare

Because the new soil holds more water than the old crammed rootball did, ease right back on watering — let the top of the soil dry before you water forsythia 'show off' again, or you will rot the roots in the very pot you just moved it to. Keep it out of harsh direct sun for a fortnight. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for forsythia 'show off'

Forsythia 'Show Off' wants adaptable, well-drained soil of any moderate fertility. Grows in loam, clay, or sand across a broad pH range. Prefers moderately fertile, free-draining ground; tolerant of urban and poor soils but densest and most floriferous where drainage and fertility are reasonable. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting forsythia 'show off' — frequently asked questions

How often should you repot forsythia 'show off'?

Only every 2–4 years, when genuinely crowded for forsythia 'show off'. Only repot forsythia 'show off' every 2–4 years, and only when it is genuinely root-bound — it flowers and grows best slightly crowded. Step up just one pot size in spring using adaptable, well-drained soil of any moderate fertility. The key mistake is over-potting: a too-big pot stays wet and rots the roots.

What size pot does forsythia 'show off' need?

When is the best time of year to repot forsythia 'show off'?

Does forsythia 'show off' like to be root-bound?

Yes — forsythia 'show off' genuinely flowers and grows best when slightly pot-bound, so do not rush to repot it. The mistake to avoid is over-potting into a much larger pot: the excess soil stays wet, the roots cannot use it, and the plant rots. Only repot every few years and only one snug size up.

Should you fertilise forsythia 'show off' after repotting?

Not immediately. Wait about 4 weeks after repotting forsythia 'show off'. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.