Fertilising guide

How to fertilise Moroccan Lavender (Lavandula maroccana)— schedule & NPK

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.

Growth habit: Upright, loosely branching evergreen shrub with erect, sparsely hairy stems and pinnate grey-green leaves; produces compact, stout flower spikes.

What fertiliser moroccan lavender actually wants — and why

Moroccan Lavender is a soft, fast leafy herb that you harvest hard — a modest balanced feed keeps tender growth coming without tipping it into bland or bolting.

A balanced general feed (even N-P-K) at modest strength — enough nitrogen to keep replacing the leaves you pick, but not so much that flavour thins or it bolts to seed.

For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for moroccan lavender: match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.

How often to feed moroccan lavender, and which months

Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For moroccan lavender:

Apply a light balanced fertiliser in early spring; mountain-origin plants accustomed to nutrient-poor rocky soils do not require or benefit from heavy feeding. In practice: a balanced liquid feed every few weeks through the main growing and harvesting season (spring through early autumn), more often the harder you are picking it.

The dormant-season rule matters more than the exact interval: skip feeding entirely when moroccan lavender is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.

What strength to mix for moroccan lavender

Half strength is a sensible default for moroccan lavender — enough to fuel regrowth after cutting, gentle enough that the leaves stay aromatic rather than watery.

Feeding always goes onto already-damp soil, never dry roots — water moroccan lavender first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the moroccan lavender watering schedule.

Signs you are over-feeding moroccan lavender

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for moroccan lavender:

Fast, soft, pale growth with diluted, less aromatic flavour.
Early bolting (running to flower) and a bitter edge.
Salt crust and scorched tips on container plants.

Signs you are under-feeding moroccan lavender

Pale, slow regrowth after cutting and small leaves.
A tired, stalled plant that cannot keep up with harvesting.
Yellowing older leaves in a long-spent pot.

If the symptoms point at watering, light or roots rather than nutrition, the full moroccan lavender care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Pot-grown moroccan lavender builds up feed salts quickly — water until it drains each time and flush the pot with plain water every few weeks, especially on a sunny windowsill.

Organic vs synthetic feeds for moroccan lavender

Organic options

A diluted seaweed feed or worm-casting tea keeps soft growth coming without overdoing it. UK: dilute seaweed or Westland; US: Espoma Garden-tone or Neptune's Harvest. Gentle, hard to overdo, flavour-friendly.

Synthetic / liquid feeds

A balanced liquid feed at half strength through harvesting — UK: Phostrogen, Baby Bio or Westland; US: Miracle-Gro all-purpose at half strength. Fast regrowth; just do not overdo the nitrogen.

Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.

Fertilising moroccan lavender — frequently asked questions

What fertiliser does moroccan lavender need?

A balanced general feed (even N-P-K) at modest strength — enough nitrogen to keep replacing the leaves you pick, but not so much that flavour thins or it bolts to seed. Moroccan Lavender is a soft, fast leafy herb that you harvest hard — a modest balanced feed keeps tender growth coming without tipping it into bland or bolting.

How often should I feed moroccan lavender?

Apply a light balanced fertiliser in early spring; mountain-origin plants accustomed to nutrient-poor rocky soils do not require or benefit from heavy feeding. Apply a light balanced fertiliser in early spring; mountain-origin plants accustomed to nutrient-poor rocky soils do not require or benefit from heavy feeding. In practice: a balanced liquid feed every few weeks through the main growing and harvesting season (spring through early autumn), more often the harder you are picking it.

What strength of feed for moroccan lavender?