Fertilising guide
How to fertilise Bay laurel (Laurus nobilis)— schedule & NPK
Also called sweet bay, true laurel, bay tree.
About Bay laurel
Laurus nobilis · also called sweet bay, true laurel · herb
Bay laurel is an evergreen Mediterranean shrub or small tree grown for aromatic leaves used in cooking. Long-lived in pots; clipped into shapes for formal gardens. Mildly toxic to pets; the leaves are tough and rarely chewed.
Bay laurel (Laurus nobilis, Lauraceae) is a slow-growing evergreen tree or shrub native to the Mediterranean Basin; its aromatic leaves are the classic bay leaf of the kitchen.
A modest feeder given its slow growth; light, periodic feeding is enough, and container plants need only occasional replenishment.
Growth habit: Evergreen shrub or small tree
Sources: plants.ces.ncsu.edu, hort.extension.wisc.edu
What fertiliser bay laurel actually wants — and why
Bay laurel 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 bay laurel: 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 bay laurel, 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 bay laurel:
Balanced feed monthly in pots during growing season. 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 bay laurel 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 bay laurel
Half strength is a sensible default for bay laurel — 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 bay laurel first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the bay laurel watering schedule.
Signs you are over-feeding bay laurel
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for bay laurel:
- 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 bay laurel
- 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 bay laurel care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Pot-grown bay laurel 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 bay laurel
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 bay laurel — frequently asked questions
What fertiliser does bay laurel 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. Bay laurel 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 bay laurel?
Balanced feed monthly in pots during growing season. Balanced feed monthly in pots during growing season. 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 bay laurel?
Half strength is a sensible default for bay laurel — enough to fuel regrowth after cutting, gentle enough that the leaves stay aromatic rather than watery.
What does over-feeding bay laurel 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 bay laurel 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 bay laurel?
Pot-grown bay laurel 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
- Bay laurel care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water bay laurel — 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 200 fertilising guides in the Growli library