When & how to repot Wild Rocket (Diplotaxis tenuifolia)

How to tell wild rocket needs repotting

Repotting on a calendar is less reliable than reading the plant. For wild rocket, watch for these signs:

• Roots growing out of the drainage holes, or the rootball lifting the plant proud of the rim.
• Soil that has shrunk away from the pot sides and no longer holds water.
• The pot is unstable because the plant has grown top-heavy.
• Old, compacted, broken-down mix that stays wet too long — for a succulent that is a rot risk, so refresh it even if the pot size is fine.

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 wild rocket

Every 2–3 years, into bone-dry mix. Wild Rocket's growth habit — upright, multi-stemmed perennial subshrub — sets the pace. Wild Rocket is a perennial Mediterranean leaf vegetable with a more intense, peppery flavour than cultivated rocket. Unlike annual salad rocket, it regrows vigorously after cutting. Drought-tolerant and long-lived once established, it thrives in well-drained soil and full sun. Fully edible and pet-safe for dogs and cats.

What size pot to step wild rocket up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Wild Rocket stores water and rots in a large pot of slow-drying soil. A tight terracotta pot that dries fast is far safer than a generous plastic one. Never up-pot a succulent by several sizes.

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 wild rocket

Spring or summer, while wild rocket is in active growth and warm, is best — roots recover fastest then, and the plant is not sitting in cool damp soil. Avoid repotting a succulent in winter dormancy.

Step-by-step: repotting wild rocket

1. Repot dry. Do not water wild rocket for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
2. Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty free-draining, gritty or sandy loam, low to moderate fertility ready.
3. Tip it out and clean the roots. Slide the plant out, crumble off the old soil, and trim any black, mushy or dead roots with clean snips.
4. Pot into dry mix. Set wild rocket at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
5. Wait a week before watering. Leave it completely dry and out of harsh sun for about 7 days so any damaged roots callus. Only then water lightly.

Aftercare

Keep wild rocket completely dry and out of fierce sun for about a week so any nicked roots callus before they meet moisture; watering a freshly repotted succulent is the classic way to rot it. Then resume the normal lean, dry rhythm. Do not fertilise for about 3 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for wild rocket

Wild Rocket wants free-draining, gritty or sandy loam, low to moderate fertility. Thrives in poor to moderately fertile, well-drained soils. Rich, moist soils produce lush but less flavoursome growth and increase bolting risk. pH 6.0–7.5. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting wild rocket — frequently asked questions

Related guides

• Wild Rocket care — light, water, soil and common problems
• How often to water wild rocket — the watering brief
• How to repot a plant — the complete step-by-step method
• Root-bound plant — how to spot and fix it
• Pot size calculator — size the next pot correctly
• When & how to repot ogeechee tupelo
• When & how to repot japanese arrowhead
• When & how to repot prickly water lily
• All 11687 repotting guides in the Growli library