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Fertilising guide

How to fertilise Lantana (Lantana camara)— schedule & NPK

Also called Lantana, Common lantana, Shrub verbena, Yellow sage, Red sage, West Indian lantana.

More about lantana

About Lantana

Lantana camara · also called Lantana, Common lantana · flowering

Lantana camara is a heat-loving flowering shrub prized for clustered, colour-shifting blooms that draw butterflies all season. It thrives in full sun with well-drained soil and minimal water once established. The ASPCA lists it as toxic to dogs, cats, and horses, so keep pets and grazing animals away from the foliage and berries.

Growth habit: Fast-growing, mounding to sprawling evergreen shrub with arching stems and dense clusters of small tubular flowers that often shift colour as they age. Frequently grown as a perennial in warm zones or as an annual or container plant elsewhere; trailing cultivars suit hanging baskets.

Watch for — Few or no flowers: Almost always too little light. Lantana needs full direct sun to bloom well; move it to the sunniest spot and avoid excess nitrogen fertiliser, which favours foliage over flowers.

What fertiliser lantana actually wants — and why

Lantana is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.

A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula.

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 lantana: 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 lantana, 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 lantana:

Feed with a balanced liquid fertiliser roughly every two weeks during the growing season to sustain continuous flowering. Avoid heavy nitrogen, which pushes leafy growth at the expense of blooms. Stop feeding in autumn and winter when growth slows. Treat that as sparingly through the growing season between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.

The dormant-season rule matters more than the exact interval: skip feeding entirely when lantana 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 lantana

Half strength is the safe default for lantana — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.

Feeding always goes onto already-damp soil, never dry roots — water lantana first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the lantana watering schedule.

Signs you are over-feeding lantana

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

Signs you are under-feeding lantana

If the symptoms point at watering, light or roots rather than nutrition, the full lantana care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Flush the pot of lantana with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.

Organic vs synthetic feeds for lantana

Organic options

A diluted seaweed or worm-casting feed, or fish emulsion if you can tolerate the smell indoors. UK: Westland or Baby Bio Organic, dilute seaweed; US: Espoma Indoor! or Neptune's Harvest fish & seaweed. Slow, gentle and hard to overdo.

Synthetic / liquid feeds

A general-purpose houseplant liquid at half strength — UK: Baby Bio, Westland Houseplant Feed or Phostrogen; US: Miracle-Gro Indoor Plant Food or Schultz. Convenient and fast-acting; the only risk is overdoing it.

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 lantana — frequently asked questions

What fertiliser does lantana need?

A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula. Lantana is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.

How often should I feed lantana?

Feed with a balanced liquid fertiliser roughly every two weeks during the growing season to sustain continuous flowering. Avoid heavy nitrogen, which pushes leafy growth at the expense of blooms. Stop feeding in autumn and winter when growth slows. Feed with a balanced liquid fertiliser roughly every two weeks during the growing season to sustain continuous flowering. Avoid heavy nitrogen, which pushes leafy growth at the expense of blooms. Stop feeding in autumn and winter when growth slows. Treat that as sparingly through the growing season between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.

What strength of feed for lantana?

Half strength is the safe default for lantana — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.

What does over-feeding lantana look like?

Brown, crispy leaf tips and edges with no sign of underwatering. A white, crusty salt deposit on the soil surface or pot rim. Weak, pale, stretched new growth that flops. Lower leaves yellow and drop while the soil is correctly watered. Feeding lantana year-round on a fixed schedule, including dark winter months, is the most common mistake — it cannot use the nutrients in low light and the surplus simply burns the roots and crusts the soil.

Should I flush the soil of lantana?

Flush the pot of lantana with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.

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