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Fertilising guide

How to fertilise Lychee (Litchi chinensis)— schedule & NPK

Also called Lychee, Litchi, Chinese cherry.

More about lychee

About Lychee

Litchi chinensis · also called Lychee, Litchi · tropical

Lychee is a slow-growing subtropical evergreen tree grown for its fragrant, translucent fruit. It demands a frost-free site, acidic well-drained soil, and a brief cool, dry spell to trigger flowering. Patient growers in warm climates or large containers are rewarded, but seedlings can take many years to fruit.

Growth habit: Rounded, densely canopied evergreen tree with glossy compound leaves and a slow, steady growth rate.

Watch for — Leaf chlorosis: Yellowing between leaf veins, usually iron or micronutrient lockout on alkaline soil. Acidify the soil and apply chelated iron.

What fertiliser lychee actually wants — and why

Lychee 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 lychee: 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 lychee, 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 lychee:

Feed lightly and regularly in the growing season with a balanced fertiliser; young trees prefer little-and-often. Avoid heavy nitrogen near flowering. Acidifying feeds and chelated iron help on near-neutral soils. 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 lychee 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 lychee

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

Signs you are over-feeding lychee

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

Signs you are under-feeding lychee

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

Flushing and leaching the salts

Flush the pot of lychee 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 lychee

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 lychee — frequently asked questions

What fertiliser does lychee 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. Lychee 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 lychee?

Feed lightly and regularly in the growing season with a balanced fertiliser; young trees prefer little-and-often. Avoid heavy nitrogen near flowering. Acidifying feeds and chelated iron help on near-neutral soils. Feed lightly and regularly in the growing season with a balanced fertiliser; young trees prefer little-and-often. Avoid heavy nitrogen near flowering. Acidifying feeds and chelated iron help on near-neutral soils. 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 lychee?

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

What does over-feeding lychee 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 lychee 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 lychee?

Flush the pot of lychee 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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