Fertilising guide
How to fertilise Henry's Lime (Tilia henryana)— schedule & NPK
Also called Henry's Lime, Henry's Linden.
More about henry's lime
About Henry's Lime
Tilia henryana · also called Henry's Lime, Henry's Linden · flowering
A rare and ornamental Chinese linden that stands out for its unusually late flowering in August–September and its striking spring foliage, which emerges flushed silvery-pink. Heart-shaped leaves have distinctive bristle-tipped teeth. Well-suited to sheltered, large gardens where its extended bloom period fills a gap left by earlier-flowering trees.
Growth habit: Broadly rounded to spreading crown; deciduous; moderate growth rate; late-season flowering is a distinctive horticultural feature
What fertiliser henry's lime actually wants — and why
Henry's Lime 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 henry's lime: 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 henry's lime, 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 henry's lime:
Apply balanced slow-release fertiliser in early spring. Given its preference for fertile soil, an annual top-dressing of well-rotted organic matter in autumn is beneficial. Avoid late-season nitrogen that promotes soft growth vulnerable to early frosts. 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 henry's lime 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 henry's lime
Half strength is the safe default for henry's lime — 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 henry's lime first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the henry's lime watering schedule.
Signs you are over-feeding henry's lime
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for henry's lime:
- 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 henry's lime
- 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 henry's lime care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of henry's lime 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 henry's lime
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 henry's lime — frequently asked questions
What fertiliser does henry's lime 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. Henry's Lime 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 henry's lime?
Apply balanced slow-release fertiliser in early spring. Given its preference for fertile soil, an annual top-dressing of well-rotted organic matter in autumn is beneficial. Avoid late-season nitrogen that promotes soft growth vulnerable to early frosts. Apply balanced slow-release fertiliser in early spring. Given its preference for fertile soil, an annual top-dressing of well-rotted organic matter in autumn is beneficial. Avoid late-season nitrogen that promotes soft growth vulnerable to early frosts. 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 henry's lime?
Half strength is the safe default for henry's lime — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding henry's lime 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 henry's lime 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 henry's lime?
Flush the pot of henry's lime 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
- Henry's Lime care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water henry's lime — 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 cucumber tree magnolia
- How to fertilise japanese big-leaf magnolia
- How to fertilise umbrella magnolia
- All 8452 fertilising guides in the Growli library