Soil & potting mix
Best soil for Lavandin (Lavandula × intermedia)
Also called lavandin, Dutch lavender, hybrid lavender.
More about lavandin
About Lavandin
Lavandula × intermedia · also called lavandin, Dutch lavender · herb
Lavandin is a vigorous sterile hybrid of English and spike lavender, grown for its long, camphor-scented flower spikes and abundant essential oil. A woody Mediterranean sub-shrub, it demands full sun and sharp drainage, tolerates drought and poor soil, and resents wet, heavy ground. Larger and later-flowering than English lavender.
Preferred mix: Lean, gritty, free-draining alkaline soil, pH 6.5-8.0
Watch for — Root rot from wet soil: The most common killer. Heavy, poorly drained, or overwatered soil rots the roots and crown. Plant in gritty, free-draining ground and water sparingly.
Why lavandin needs this mix
Lavandin is a Mediterranean dry-hillside plant — it wants a lean, sharply drained, slightly alkaline mix, and rots fast in rich, water-holding soil.
- Lavandin evolved on stony, sun-baked slopes — its roots expect to dry out hard and quickly between rains, so the mix must drain almost as fast as you pour.
- A lean, low-nutrient mix keeps growth firm and aromatic; a rich one gives soft, sappy, flavourless growth that flops and rots.
- It tolerates and often prefers a slightly alkaline soil, the opposite of most houseplants.
For the full picture on what makes up a good mix, see our guide to the main types of soil and potting media — it explains why each ingredient above behaves the way it does.
What goes wrong with the wrong mix
The wrong soil is one of the most common reasons lavandin struggles, and the damage often shows up weeks later as a watering problem. For this species specifically:
- Rich, moisture-holding compost is the classic killer of lavandin — especially over a cold, wet winter, when the base of the plant simply rots.
- A peaty, acidic potting mix is doubly wrong: too wet and the wrong pH direction.
- No grit means the rootball stays damp for days, which a dry-climate root system never copes with.
Growing lavandin in ordinary rich, moisture-retentive compost. Lean it out with at least a third grit, and never let it sit wet over winter.
pH — does it matter for lavandin?
Lavandin likes neutral to slightly alkaline soil, roughly pH 6.5-7.5. If your soil or compost is acidic, a little garden lime or extra grit nudges it the right way — the one common plant where you may add lime.
If you want to check or adjust it, the soil pH guide walks through testing and the safe ways to nudge a mix more acidic or more alkaline.
DIY mix vs a bagged one
Bagged "herb" or "Mediterranean" mixes are usually fine for lavandin, but most standard composts need cutting hard with grit. The DIY ratio above is cheap and exactly right.
Drainage and the pot
Sharp drainage is everything: a terracotta pot with a big hole, gritty mix and never a saucer left full. Raised beds suit these herbs outdoors for the same reason.
A gritty mix barely breaks down, so lavandin needs little repotting — refresh the top layer and the grit every couple of years rather than potting on aggressively. When the time comes, our repotting guide for lavandin covers the timing and technique step by step.
Lavandin soil — frequently asked questions
What is the best soil mix for lavandin?
2 parts standard peat-free compost or loam : 1 part coarse horticultural grit : 1 part perlite or coarse sand. Lavandin evolved on stony, sun-baked slopes — its roots expect to dry out hard and quickly between rains, so the mix must drain almost as fast as you pour.
Can I use normal potting soil for lavandin?
Rich, moisture-holding compost is the classic killer of lavandin — especially over a cold, wet winter, when the base of the plant simply rots. Bagged "herb" or "Mediterranean" mixes are usually fine for lavandin, but most standard composts need cutting hard with grit. The DIY ratio above is cheap and exactly right.
Does lavandin need a special pH?
Lavandin likes neutral to slightly alkaline soil, roughly pH 6.5-7.5. If your soil or compost is acidic, a little garden lime or extra grit nudges it the right way — the one common plant where you may add lime.
Should I buy a bagged mix or make my own for lavandin?
Bagged "herb" or "Mediterranean" mixes are usually fine for lavandin, but most standard composts need cutting hard with grit. The DIY ratio above is cheap and exactly right.
How often should I refresh the soil for lavandin?
A gritty mix barely breaks down, so lavandin needs little repotting — refresh the top layer and the grit every couple of years rather than potting on aggressively. Sharp drainage is everything: a terracotta pot with a big hole, gritty mix and never a saucer left full. Raised beds suit these herbs outdoors for the same reason.
Keep reading
- Lavandin care — the full brief (light, water, humidity, problems, pet safety)
- How often to water lavandin — the schedule the mix feeds into
- Repotting lavandin — when and how to refresh the mix
- Soil pH guide — test it and adjust it safely
- Overwatered plant — signs and recovery
- Root rot — how the wrong soil starts it, and how to save the plant
- Should I water my plant? The simple check first
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- All 2464 soil and potting-mix guides in the Growli library