Fertilising guide

How to fertilise Pelargonium 'Fair Ellen' (Pelargonium 'Fair Ellen')— schedule & NPK

Also called Fair Ellen pelargonium, Oak-leaved geranium.

More about pelargonium 'fair ellen'

About Pelargonium 'Fair Ellen'

Pelargonium 'Fair Ellen' · also called Fair Ellen pelargonium, Oak-leaved geranium · herb

'Fair Ellen' is a robust oak-leaved scented pelargonium with dark-zoned, deeply lobed leaves and a balsam-pine fragrance. It produces clusters of pink flowers veined deeper rose and forms a tidy, weather-tolerant mound. Like its relatives it favours bright light, free-draining soil, warmth and protection from frost over winter.

Growth habit: Bushy, mounding oak-leaved type that is sturdier and more weather-resistant than many scented pelargoniums; pinch tips to maintain density.

Watch for — Sparse flowering: Too little light or nitrogen-heavy feeding reduces blooms; move to full sun and switch to a high-potash feed.

What fertiliser pelargonium 'fair ellen' actually wants — and why

Pelargonium 'Fair Ellen' 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 pelargonium 'fair ellen': 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 pelargonium 'fair ellen', 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 pelargonium 'fair ellen':

Feed fortnightly in spring and summer with a balanced or high-potash liquid feed at half strength to support flowering. Stop feeding through autumn and winter. 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 pelargonium 'fair ellen' 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 pelargonium 'fair ellen'

Half strength is a sensible default for pelargonium 'fair ellen' — 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 pelargonium 'fair ellen' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the pelargonium 'fair ellen' watering schedule.

Signs you are over-feeding pelargonium 'fair ellen'

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for pelargonium 'fair ellen':

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 pelargonium 'fair ellen'

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 pelargonium 'fair ellen' care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Pot-grown pelargonium 'fair ellen' 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 pelargonium 'fair ellen'

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 pelargonium 'fair ellen' — frequently asked questions

What fertiliser does pelargonium 'fair ellen' 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. Pelargonium 'Fair Ellen' 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 pelargonium 'fair ellen'?

Feed fortnightly in spring and summer with a balanced or high-potash liquid feed at half strength to support flowering. Stop feeding through autumn and winter. Feed fortnightly in spring and summer with a balanced or high-potash liquid feed at half strength to support flowering. Stop feeding through autumn and winter. 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 pelargonium 'fair ellen'?