Growli

Fertilising guide

How to fertilise Satinleaf (Chrysophyllum oliviforme)— schedule & NPK

Also called Satinleaf, Caimitillo, West Indian Damson.

More about satinleaf

About Satinleaf

Chrysophyllum oliviforme · also called Satinleaf, Caimitillo · tropical

A slow-growing, wind-resistant native Florida and Caribbean tree in the Sapotaceae family, prized for its stunning bicoloured leaves — glossy deep green above, rich coppery-bronze beneath. Thrives in full sun to part shade on fertile, well-drained soils in USDA zones 10b–11. Produces small edible purple fruits attractive to birds. Tolerates occasional drought once established.

Growth habit: Evergreen tree; upright oval form; dense branching; slow-growing; high wind-resistance

What fertiliser satinleaf actually wants — and why

Satinleaf 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 satinleaf: 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 satinleaf, 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 satinleaf:

Fertilise young trees with a balanced slow-release granular fertiliser (e.g. 10-10-10) two to three times during the growing season. Established trees in fertile soil require minimal feeding; supplement with minor elements (iron, manganese) if leaf yellowing suggests deficiency on alkaline 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 satinleaf 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 satinleaf

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

Signs you are over-feeding satinleaf

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

Signs you are under-feeding satinleaf

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

Flushing and leaching the salts

Flush the pot of satinleaf 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 satinleaf

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 satinleaf — frequently asked questions

What fertiliser does satinleaf 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. Satinleaf 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 satinleaf?

Fertilise young trees with a balanced slow-release granular fertiliser (e.g. 10-10-10) two to three times during the growing season. Established trees in fertile soil require minimal feeding; supplement with minor elements (iron, manganese) if leaf yellowing suggests deficiency on alkaline soils. Fertilise young trees with a balanced slow-release granular fertiliser (e.g. 10-10-10) two to three times during the growing season. Established trees in fertile soil require minimal feeding; supplement with minor elements (iron, manganese) if leaf yellowing suggests deficiency on alkaline 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 satinleaf?

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

What does over-feeding satinleaf 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 satinleaf 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 satinleaf?

Flush the pot of satinleaf 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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