Fertilising guide

How to fertilise Vera lavender (Lavandula angustifolia 'Vera')— schedule & NPK

Also called Vera lavender, True lavender, Old English lavender.

More about vera lavender

About Vera lavender

Lavandula angustifolia 'Vera' · also called Vera lavender, True lavender · herb

A vigorous, bushy English lavender cultivar with long, fragrant pale lavender-blue flower spikes on stout stems, well-suited to commercial essential-oil production and large garden borders. 'Vera' is one of the most cold-hardy and fragrant angustifolia selections, thriving in full sun and well-drained alkaline soils. Excellent for hedging, drying, and attracting bees.

Growth habit: Bushy, mound-forming, woody-based evergreen subshrub; aromatic narrow grey-green leaves

Watch for — Shab (Phoma lavandulae): A fungal disease causing sudden die-back of stems, more prevalent in wet seasons. Remove and burn affected stems immediately; improve airflow and avoid wetting foliage when watering.

What fertiliser vera lavender actually wants — and why

Vera 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 vera 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 vera 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 vera lavender:

Very little. A light application of potassium-rich fertiliser (e.g., tomato feed) in early spring can promote flowering without excessive soft growth. Avoid nitrogen-heavy feeds entirely. 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 vera 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 vera lavender

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

Signs you are over-feeding vera lavender

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for vera 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 vera 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 vera lavender care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Pot-grown vera 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 vera 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 vera lavender — frequently asked questions

What fertiliser does vera 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. Vera 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 vera lavender?

Very little. A light application of potassium-rich fertiliser (e.g., tomato feed) in early spring can promote flowering without excessive soft growth. Avoid nitrogen-heavy feeds entirely. Very little. A light application of potassium-rich fertiliser (e.g., tomato feed) in early spring can promote flowering without excessive soft growth. Avoid nitrogen-heavy feeds entirely. 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 vera lavender?