Repotting guide

When & how to repot Moroccan Lavender (Lavandula maroccana)

Also called Moroccan lavender, Atlas lavender.

More about moroccan lavender

About Moroccan Lavender

Lavandula maroccana · also called Moroccan lavender, Atlas lavender · herb

Moroccan lavender is an evergreen perennial shrub endemic to Morocco's High Atlas mountains and their western extensions, where it grows at altitudes up to 1,700 m in dry, rocky terrain; it is globally assessed as Vulnerable (VU) due to overharvesting and habitat degradation. It forms an upright, rather sprawling bush with pinnate leaves and produces compact spikes of fragrant dark violet flowers from late winter at low altitudes through to midsummer at elevation. This species requires well-drained soil and full sun, and while it tolerates moderate winter cold from its mountain origin, it is not suitable for gardens with prolonged frost or wet winters. According to the ASPCA, lavender (Lavandula) is toxic to cats, dogs, and horses.

Mature size: 50–80 cm tall and 40–70 cm wide; occasionally reaching 1 m in warm, sheltered, frost-free gardens.

Watch for — Root and crown rot: The most common problem in cultivation; even brief periods of waterlogged soil, particularly when combined with cool temperatures, rapidly kill the root system. Excellent drainage and restrained watering are the primary preventive measures.

How to tell moroccan lavender needs repotting

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

A dense root mass with little soil visible when you ease moroccan lavender out of its pot — check once a year rather than assuming.
Roots emerging from the drainage holes (slow on this plant, so this is a strong signal).
The plant has become top-heavy and tips its pot over.
Genuinely stalled growth across a full season despite adequate light — not just the naturally slow pace this plant always has.

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 moroccan lavender

Every 2–4 years — it is in no hurry. Moroccan Lavender's growth habit — upright, loosely branching evergreen shrub with erect, sparsely hairy stems and pinnate grey-green leaves; produces compact, stout flower spikes. — sets the pace. Moroccan lavender is an evergreen perennial shrub endemic to Morocco's High Atlas mountains and their western extensions, where it grows at altitudes up to 1,700 m in dry, rocky terrain; it is globally assessed as Vulnerable (VU) due to overharvesting and habitat degradation. It forms an upright, rather sprawling bush with pinnate leaves and produces compact spikes of fragrant dark violet flowers from late winter at low altitudes through to midsummer at elevation. This species requires well-drained soil and full sun, and while it tolerates moderate winter cold from its mountain origin, it is not suitable for gardens with prolonged frost or wet winters. According to the ASPCA, lavender (Lavandula) is toxic to cats, dogs, and horses.

What size pot to step moroccan lavender up to

Step up just one pot size, and only when the roots are genuinely packed. Because moroccan lavender grows so slowly, a big pot of damp soil will simply sit wet for months around a small root system and invite rot. A snug pot suits this plant; resist the urge to "give it room to grow" — it will not use it.

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 moroccan lavender

Early spring, just as new growth restarts, is the ideal window for moroccan lavender. 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 moroccan lavender

Time it for spring. Repot moroccan lavender in early spring as growth restarts so it re-roots quickly into the fresh soil.
Choose one size up. Pick a pot about 2–3 cm wider with drainage holes. One step only — a much bigger pot stays soggy and rots roots.
Ease the plant out. Water lightly the day before, then tip moroccan lavender out and gently loosen any roots circling the bottom of the rootball.
Repot at the same depth. Put a layer of fresh sandy or gravelly, sharply drained, low-fertility, neutral to slightly alkaline in the new pot, set the plant so its soil line is unchanged, and backfill, firming lightly.
Water and pause feeding. Water once to settle the soil. Hold off fertiliser for about a month — fresh mix already has nutrients and feeding now burns new roots.

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 moroccan lavender 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 moroccan lavender

Moroccan Lavender wants sandy or gravelly, sharply drained, low-fertility, neutral to slightly alkaline. Replicates the fast-draining, stony mountain soils of the High Atlas; mix coarse grit at a 1:1 ratio with loam-based compost for container culture. Never plant in heavy clay without significant grit amendment. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting moroccan lavender — frequently asked questions

How often should you repot moroccan lavender?

Every 2–4 years — it is in no hurry for moroccan lavender. Repot moroccan lavender only every 2–4 years — it builds roots slowly and a yearly repot is wasted effort. Move up just one pot size in spring with fresh sandy or gravelly, sharply drained, low-fertility, neutral to slightly alkaline. The main error is repotting too often and into too large a pot, which leaves cold wet soil around the roots.

What size pot does moroccan lavender need?

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

Can you put moroccan lavender straight into a much bigger pot?

No. Even a fast-growing moroccan lavender should only go up one pot size at a time. A vastly oversized pot holds a reservoir of wet soil the roots cannot reach, which stays cold and soggy and rots the roots — the opposite of what you wanted.

Should you fertilise moroccan lavender after repotting?

Not immediately. Wait about 4 weeks after repotting moroccan 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.