Fertilising guide
How to fertilise All Gold Lemon Balm (Melissa officinalis 'All Gold')— schedule & NPK
Also called All Gold Lemon Balm, Golden Lemon Balm.
More about all gold lemon balm
About All Gold Lemon Balm
Melissa officinalis 'All Gold' · also called All Gold Lemon Balm, Golden Lemon Balm · herb
A striking herbaceous perennial with bright golden-yellow, lemon-scented foliage that softens to lime-green through summer. Hardy in USDA zones 4–9. Best colour develops in partial shade — full sun scorches the leaves. Clump-forming with square stems. Cut back after flowering to stimulate a fresh flush of vibrant new growth.
Growth habit: Clump-forming herbaceous perennial with upright, branched, square stems and broadly toothed, wrinkled leaves
What fertiliser all gold lemon balm actually wants — and why
All Gold Lemon Balm 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 all gold lemon balm: 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 all gold lemon balm, 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 all gold lemon balm:
Apply a balanced slow-release fertiliser in spring as new growth emerges. Avoid high-nitrogen feeds, which cause excessive leafy growth and self-seeding. A light top-dress of compost each autumn maintains soil fertility. 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 all gold lemon balm 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 all gold lemon balm
Half strength is a sensible default for all gold lemon balm — 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 all gold lemon balm first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the all gold lemon balm watering schedule.
Signs you are over-feeding all gold lemon balm
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for all gold lemon balm:
- 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 all gold lemon balm
- 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 all gold lemon balm care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Pot-grown all gold lemon balm 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 all gold lemon balm
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 all gold lemon balm — frequently asked questions
What fertiliser does all gold lemon balm 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. All Gold Lemon Balm 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 all gold lemon balm?
Apply a balanced slow-release fertiliser in spring as new growth emerges. Avoid high-nitrogen feeds, which cause excessive leafy growth and self-seeding. A light top-dress of compost each autumn maintains soil fertility. Apply a balanced slow-release fertiliser in spring as new growth emerges. Avoid high-nitrogen feeds, which cause excessive leafy growth and self-seeding. A light top-dress of compost each autumn maintains soil fertility. 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 all gold lemon balm?
Half strength is a sensible default for all gold lemon balm — enough to fuel regrowth after cutting, gentle enough that the leaves stay aromatic rather than watery.
What does over-feeding all gold lemon balm 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 all gold lemon balm 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 all gold lemon balm?
Pot-grown all gold lemon balm 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
- All Gold Lemon Balm care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water all gold lemon balm — 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 hyssop
- How to fertilise angelica
- How to fertilise mexican tarragon
- All 6887 fertilising guides in the Growli library