Fertilising guide
How to fertilise Moroccan Mint (Mentha spicata 'Moroccan')— schedule & NPK
Also called Tea Mint.
More about moroccan mint
About Moroccan Mint
Mentha spicata 'Moroccan' · also called Tea Mint · herb
Moroccan Mint is a clean, crisp spearmint cultivar with bright green crinkled leaves, the classic mint for Moroccan tea. A hardy, vigorous perennial, it spreads by runners and rewards moist rich soil and sun. Its low-menthol, sweet spearmint flavor stays best with frequent harvesting and containment in pots or sunken beds.
Growth habit: Spreading herbaceous perennial that runs vigorously on rhizomes and stolons to form dense green mats; upright stems carry spearmint flower spikes.
What fertiliser moroccan mint actually wants — and why
Moroccan Mint 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 mint: 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 mint, 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 mint:
Light feeder. Half-strength balanced liquid fertilizer every 4-6 weeks through the season, or a spring compost top-dressing, keeps it productive. Heavy nitrogen produces lush, weak growth and dilutes the tea flavor. 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 mint 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 mint
Half strength is a sensible default for moroccan mint — 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 mint first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the moroccan mint watering schedule.
Signs you are over-feeding moroccan mint
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for moroccan mint:
- 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 mint
- 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 mint care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Pot-grown moroccan mint 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 mint
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 mint — frequently asked questions
What fertiliser does moroccan mint 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 Mint 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 mint?
Light feeder. Half-strength balanced liquid fertilizer every 4-6 weeks through the season, or a spring compost top-dressing, keeps it productive. Heavy nitrogen produces lush, weak growth and dilutes the tea flavor. Light feeder. Half-strength balanced liquid fertilizer every 4-6 weeks through the season, or a spring compost top-dressing, keeps it productive. Heavy nitrogen produces lush, weak growth and dilutes the tea flavor. 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 mint?
Half strength is a sensible default for moroccan mint — enough to fuel regrowth after cutting, gentle enough that the leaves stay aromatic rather than watery.
What does over-feeding moroccan mint look like?
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. Over-feeding moroccan mint with strong nitrogen is the usual mistake — it grows fast and lush but the leaves turn bland and it bolts to flower sooner, ending the useful harvest early.
Should I flush the soil of moroccan mint?
Pot-grown moroccan mint 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.
Keep reading
- Moroccan Mint care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water moroccan mint — the watering schedule
- The houseplant fertiliser schedule — feeding through the year
- NPK ratio explained — what the three numbers on the bottle mean
- How to fertilise basil
- How to fertilise herb garden
- How to fertilise mint
- All 1284 fertilising guides in the Growli library