Fertilising guide
How to fertilise Weeping Japanese Larch (Larix kaempferi 'Pendula')— schedule & NPK
Also called Pendulous Japanese Larch, Weeping Larch.
More about weeping japanese larch
About Weeping Japanese Larch
Larix kaempferi 'Pendula' · also called Pendulous Japanese Larch, Weeping Larch · flowering
Weeping Japanese Larch is a deciduous conifer with long, pendulous branches that cascade dramatically from a trained central leader. In spring, soft, bright green needles emerge; in autumn they turn golden before dropping. This sculptural specimen is ideal for large gardens. It is not listed as toxic by the ASPCA.
Growth habit: Strongly weeping, deciduous conifer trained on a central leader
What fertiliser weeping japanese larch actually wants — and why
Weeping Japanese Larch 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 weeping japanese larch: 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 weeping japanese larch, 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 weeping japanese larch:
Apply a balanced slow-release fertiliser in early spring as growth begins. A second application can be made in early summer if growth is poor. Avoid feeding in late summer or autumn to prevent soft late-season growth vulnerable to frost. 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 weeping japanese larch 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 weeping japanese larch
Half strength is the safe default for weeping japanese larch — 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 weeping japanese larch first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the weeping japanese larch watering schedule.
Signs you are over-feeding weeping japanese larch
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for weeping japanese larch:
- 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.
Signs you are under-feeding weeping japanese larch
- Uniformly pale or yellow-green leaves, oldest first.
- Noticeably small new leaves and stalled growth in good light and season.
- A generally tired, lacklustre look despite correct watering and light.
If the symptoms point at watering, light or roots rather than nutrition, the full weeping japanese larch care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of weeping japanese larch 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 weeping japanese larch
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 weeping japanese larch — frequently asked questions
What fertiliser does weeping japanese larch 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. Weeping Japanese Larch 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 weeping japanese larch?
Apply a balanced slow-release fertiliser in early spring as growth begins. A second application can be made in early summer if growth is poor. Avoid feeding in late summer or autumn to prevent soft late-season growth vulnerable to frost. Apply a balanced slow-release fertiliser in early spring as growth begins. A second application can be made in early summer if growth is poor. Avoid feeding in late summer or autumn to prevent soft late-season growth vulnerable to frost. 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 weeping japanese larch?
Half strength is the safe default for weeping japanese larch — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding weeping japanese larch 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 weeping japanese larch 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 weeping japanese larch?
Flush the pot of weeping japanese larch 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.
Keep reading
- Weeping Japanese Larch care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water weeping japanese larch — 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 sitka spruce
- How to fertilise brewer spruce
- How to fertilise engelmann spruce
- All 11687 fertilising guides in the Growli library