Repotting guide

When & how to repot Tropaeolum majus 'Jewel of Africa' (Tropaeolum majus 'Jewel of Africa')

Also called Jewel of Africa Nasturtium, Variegated Nasturtium.

More about tropaeolum majus 'jewel of africa'

About Tropaeolum majus 'Jewel of Africa'

Tropaeolum majus 'Jewel of Africa' · also called Jewel of Africa Nasturtium, Variegated Nasturtium · flowering

'Jewel of Africa' is a climbing, variegated nasturtium with cream-marbled foliage and a mix of yellow, red, cream and peach trumpet flowers. Vigorous and easy, this fast-growing annual scrambles up supports or trails from containers. Both flowers and peppery leaves are edible. It thrives on neglect and poor soil, flowering best when not over-fed or overwatered.

Mature size: 1.5-2 m climbing or trailing length; foliage mounds 30-40 cm tall when unsupported.

How to tell tropaeolum majus 'jewel of africa' needs repotting

Repotting on a calendar is less reliable than reading the plant. For tropaeolum majus 'jewel of africa', 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 tropaeolum majus 'jewel of africa') 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 tropaeolum majus 'jewel of africa'

Only every 2–4 years, when genuinely crowded. Tropaeolum majus 'Jewel of Africa' 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. Vigorous climbing and trailing habit, scrambling 1.5-2 m up trellis and netting or cascading from baskets, with rounded variegated leaves..

What size pot to step tropaeolum majus 'jewel of africa' up to

Go up only one pot size — roughly 2–3 cm (about an inch) wider in diameter, no more. Tropaeolum majus 'Jewel of Africa' 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 tropaeolum majus 'jewel of africa' 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 tropaeolum majus 'jewel of africa'

Early spring, just as new growth restarts, is the ideal window for tropaeolum majus 'jewel of africa'. 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 tropaeolum majus 'jewel of africa'

Confirm it actually needs it. Slide tropaeolum majus 'jewel of africa' 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 tropaeolum majus 'jewel of africa' 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 light, free-draining, low-fertility soil, 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 tropaeolum majus 'jewel of africa' 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 tropaeolum majus 'jewel of africa'

Tropaeolum majus 'Jewel of Africa' wants light, free-draining, low-fertility soil. Performs best in poor to average, well-drained soil; lean ground promotes flowering. Rich, fertile soil yields lush leaves and few blooms. A free-draining peat-free mix suits containers. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting tropaeolum majus 'jewel of africa' — frequently asked questions

How often should you repot tropaeolum majus 'jewel of africa'?

Only every 2–4 years, when genuinely crowded for tropaeolum majus 'jewel of africa'. Only repot tropaeolum majus 'jewel of africa' 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 light, free-draining, low-fertility soil. The key mistake is over-potting: a too-big pot stays wet and rots the roots.

What size pot does tropaeolum majus 'jewel of africa' need?

When is the best time of year to repot tropaeolum majus 'jewel of africa'?

Does tropaeolum majus 'jewel of africa' like to be root-bound?

Yes — tropaeolum majus 'jewel of africa' 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 tropaeolum majus 'jewel of africa' after repotting?

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