Repotting guide

When & how to repot Valentine's Crown Vetch (Coronilla valentina)

Also called Valentine's Crown Vetch, Mediterranean Crown Vetch, Shrubby Scorpion Vetch.

More about valentine's crown vetch

About Valentine's Crown Vetch

Coronilla valentina · also called Valentine's Crown Vetch, Mediterranean Crown Vetch · flowering

Coronilla valentina is a compact, bushy evergreen shrub native to the Mediterranean basin, valued for its clusters of intensely honey-scented bright yellow pea flowers that can appear from late winter through spring and often again in autumn. It thrives in full sun on sharply drained, poor to moderately fertile soils and is one of the more drought-tolerant ornamental shrubs for mild coastal gardens. The most important care fact is that it needs a sheltered, frost-free or lightly frosted position — it is not reliably hardy below about -5 °C (23 °F) and is best grown against a warm, south- or west-facing wall in cooler areas. Coronilla contains coronillin and other glycosides considered toxic to dogs and cats if ingested in quantity.

Mature size: 1–1.5 m tall and 1–1.5 m wide (3–5 ft × 3–5 ft)

Watch for — Frost damage in cold winters: Stems and foliage can be killed back in temperatures below -5 °C (23 °F), particularly with cold drying winds. Grow against a warm wall and protect the root zone with a thick mulch in winter; cut damaged stems back to healthy wood in spring.

How to tell valentine's crown vetch needs repotting

Repotting on a calendar is less reliable than reading the plant. For valentine's crown vetch, 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 valentine's crown vetch

Every 2–3 years, into bone-dry mix. Valentine's Crown Vetch's growth habit — compact, bushy evergreen shrub with glaucous blue-green pinnate leaves and axillary umbels of fragrant bright yellow pea-flowers; subsp. glauca is the most commonly grown form. — sets the pace. Coronilla valentina is a compact, bushy evergreen shrub native to the Mediterranean basin, valued for its clusters of intensely honey-scented bright yellow pea flowers that can appear from late winter through spring and often again in autumn. It thrives in full sun on sharply drained, poor to moderately fertile soils and is one of the more drought-tolerant ornamental shrubs for mild coastal gardens. The most important care fact is that it needs a sheltered, frost-free or lightly frosted position — it is not reliably hardy below about -5 °C (23 °F) and is best grown against a warm, south- or west-facing wall in cooler areas. Coronilla contains coronillin and other glycosides considered toxic to dogs and cats if ingested in quantity.

What size pot to step valentine's crown vetch up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Valentine's Crown Vetch 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 valentine's crown vetch

Spring or summer, while valentine's crown vetch 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 valentine's crown vetch

Repot dry. Do not water valentine's crown vetch for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty well-drained, poor to moderately fertile, neutral to alkaline ready.
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.
Pot into dry mix. Set valentine's crown vetch at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
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 valentine's crown vetch 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 valentine's crown vetch

Valentine's Crown Vetch wants well-drained, poor to moderately fertile, neutral to alkaline. Sharply draining, gritty or sandy soil suits this shrub best; it will tolerate chalky conditions but struggles in heavy clay or poorly drained positions, especially over winter. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting valentine's crown vetch — frequently asked questions

How often should you repot valentine's crown vetch?

Every 2–3 years, into bone-dry mix for valentine's crown vetch. Repot valentine's crown vetch every 2–3 years into a snug pot of well-drained, poor to moderately fertile, neutral to alkaline, ideally in spring or summer. Let it sit in dry soil and do not water for about a week afterwards so any nicked roots can callus. Over-potting and watering straight away is what rots succulents.

What size pot does valentine's crown vetch need?

When is the best time of year to repot valentine's crown vetch?

Should you water valentine's crown vetch after repotting?

No — not straight away. Repot valentine's crown vetch into dry mix and wait about a week before the first watering so any damaged roots callus over. Watering a freshly repotted succulent is the single most common way to rot one.

Should you fertilise valentine's crown vetch after repotting?

Not immediately. Wait about 3 weeks after repotting valentine's crown vetch. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.