Repotting guide

When & how to repot Spanish Lavender (Lavandula stoechas)

Also called Butterfly Lavender, Topped Lavender.

More about spanish lavender

About Spanish Lavender

Lavandula stoechas · also called Butterfly Lavender, Topped Lavender · herb

Spanish lavender is a compact Mediterranean subshrub prized for its pineapple-shaped flower heads topped with showy rabbit-ear bracts. It blooms earlier and longer than English lavender but is less cold-hardy. Give it baking-hot sun, fast-draining gritty soil, and lean conditions; it resents wet feet and humid, soggy winters above all else.

Mature size: 45-75 cm tall and 45-90 cm wide

Watch for — Root rot from overwatering: The single most common cause of decline. Wet, heavy, or poorly drained soil rots the roots; plant in grit and water sparingly.

How to tell spanish lavender needs repotting

Repotting on a calendar is less reliable than reading the plant. For spanish lavender, 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 spanish lavender

Every 2–3 years, into bone-dry mix. Spanish Lavender's growth habit — bushy, mounding evergreen subshrub with grey-green aromatic foliage and upright flower spikes; becomes woody at the base with age. — sets the pace. Spanish lavender is a compact Mediterranean subshrub prized for its pineapple-shaped flower heads topped with showy rabbit-ear bracts. It blooms earlier and longer than English lavender but is less cold-hardy. Give it baking-hot sun, fast-draining gritty soil, and lean conditions; it resents wet feet and humid, soggy winters above all else.

What size pot to step spanish lavender up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Spanish Lavender 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 spanish lavender

Spring or summer, while spanish lavender 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 spanish lavender

Repot dry. Do not water spanish lavender 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 sharply draining sandy or gritty 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 spanish lavender 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 spanish lavender 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 spanish lavender

Spanish Lavender wants sharply draining sandy or gritty loam. Lean, alkaline-to-neutral soil amended with grit or coarse sand. Avoid rich, water-retentive composts. In pots use a Mediterranean or cactus-style mix with extra perlite or horticultural grit. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting spanish lavender — frequently asked questions

How often should you repot spanish lavender?

Every 2–3 years, into bone-dry mix for spanish lavender. Repot spanish lavender every 2–3 years into a snug pot of sharply draining sandy or gritty 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 spanish lavender need?

When is the best time of year to repot spanish lavender?

Should you water spanish lavender after repotting?

No — not straight away. Repot spanish lavender 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 spanish lavender after repotting?

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