Repotting guide

When & how to repot Salad Burnet (Sanguisorba minor)

Also called Garden Burnet.

More about salad burnet

About Salad Burnet

Sanguisorba minor · also called Garden Burnet · herb

Salad burnet is a hardy evergreen perennial herb in the rose family, forming low rosettes of fern-like leaves with a fresh cucumber flavour for salads and cold drinks. It thrives in full sun to part shade, tolerates poor chalky soil and drought, and self-seeds readily. Pick young leaves often; older foliage turns bitter and tough.

Mature size: Foliage 20-30 cm tall; flower stems reach 40-60 cm. Clumps spread to about 30 cm wide.

Watch for — Root rot in wet soil: Heavy, waterlogged ground rots the taproot and yellows the rosette. Plant in gritty, free-draining soil and avoid overwatering.

How to tell salad burnet needs repotting

Repotting on a calendar is less reliable than reading the plant. For salad burnet, 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 salad burnet

Every 2–3 years, into bone-dry mix. Salad Burnet's growth habit — low evergreen rosette-forming perennial sending up wiry, branched flower stalks topped with reddish, button-like flower heads in early summer. — sets the pace. Salad burnet is a hardy evergreen perennial herb in the rose family, forming low rosettes of fern-like leaves with a fresh cucumber flavour for salads and cold drinks. It thrives in full sun to part shade, tolerates poor chalky soil and drought, and self-seeds readily. Pick young leaves often; older foliage turns bitter and tough.

What size pot to step salad burnet up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Salad Burnet 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 salad burnet

Spring or summer, while salad burnet 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 salad burnet

Repot dry. Do not water salad burnet 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 free-draining, alkaline to neutral loam 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 salad burnet 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 salad burnet 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 salad burnet

Salad Burnet wants free-draining, alkaline to neutral loam. Naturally a plant of chalk grassland, so it loves lean, gritty, well-drained soil and even thrives on poor ground. Add grit to heavy clay; rich soil produces soft, less flavourful leaves. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting salad burnet — frequently asked questions

How often should you repot salad burnet?

Every 2–3 years, into bone-dry mix for salad burnet. Repot salad burnet every 2–3 years into a snug pot of free-draining, alkaline to neutral loam, 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 salad burnet need?

When is the best time of year to repot salad burnet?

Should you water salad burnet after repotting?

No — not straight away. Repot salad burnet 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 salad burnet after repotting?

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