Fertilising guide

How to fertilise Horse Mango (Mangifera foetida)— schedule & NPK

Also called Bachang, Elephant Mango, Wild Mango.

More about horse mango

About Horse Mango

Mangifera foetida · also called Bachang, Elephant Mango · edible

Horse Mango is a large tropical fruit tree from Southeast Asia producing big, strongly aromatic fruits used in chutneys, pickles, and cooked dishes. It needs full sun, heat, and well-drained soil. Fruits have a pungent turpentine-like smell raw but mellow when cooked. Sap may cause skin irritation; treat as mildly toxic for pets.

Growth habit: Large evergreen tropical tree

What fertiliser horse mango actually wants — and why

Horse Mango feeds in two distinct phases — balanced to build the plant, then high-potassium the moment flowering starts to set and fill a heavy crop.

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 horse mango: 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 horse mango, 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 horse mango:

Apply a balanced slow-release fertiliser (NPK 10-10-10) in spring and switch to a high-potassium formula before flowering to support fruit development. Avoid excessive nitrogen, which promotes vegetative growth at the expense of fruiting. So: a balanced feed or compost at planting, then a high-potash liquid every 1-2 weeks from first flower through harvest across the main season (spring through early autumn).

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

Follow the crop-feed label rate for horse mango — these are calibrated for hungry vegetables. Consistency through fruiting matters more than strength; erratic feeding causes problems like blossom-end rot.

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

Signs you are over-feeding horse mango

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

Vigorous dark-green leafy growth but few flowers or fruit (excess nitrogen).
Lush foliage hiding the crop; soft growth prone to pests and disease.
Salt crust on the soil and scorched leaf edges in containers.

Signs you are under-feeding horse mango

Pale, yellowing lower leaves and stunted growth.
Small fruit, poor set, and a quickly exhausted plant.
Blossom-end rot and weak cropping from erratic or insufficient feeding.

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

Flushing and leaching the salts

In containers, fertiliser salts build up fast — water horse mango thoroughly so excess drains from the base each time, and flush pots with plain water every few weeks to prevent a damaging salt build-up.

Organic vs synthetic feeds for horse mango

Organic options

Garden compost or well-rotted manure dug in before planting, plus a liquid comfrey or seaweed feed once fruiting starts. UK: comfrey feed or organic Tomorite; US: Espoma Tomato-tone or Neptune's Harvest. Builds soil and feeds in one.

Synthetic / liquid feeds

A balanced feed at planting then a high-potash tomato feed in fruiting — UK: Growmore at planting then Tomorite (Levington) or Phostrogen; US: a balanced 10-10-10 then Miracle-Gro Tomato or a bloom booster.

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 horse mango — frequently asked questions

What fertiliser does horse mango need?

Balanced (even N-P-K) at planting for roots and frame, then switch to a high-potassium ("high-potash") tomato-style feed once the first flowers open — potassium is what sizes and ripens fruit, not nitrogen. Horse Mango feeds in two distinct phases — balanced to build the plant, then high-potassium the moment flowering starts to set and fill a heavy crop.

How often should I feed horse mango?

Apply a balanced slow-release fertiliser (NPK 10-10-10) in spring and switch to a high-potassium formula before flowering to support fruit development. Avoid excessive nitrogen, which promotes vegetative growth at the expense of fruiting. Apply a balanced slow-release fertiliser (NPK 10-10-10) in spring and switch to a high-potassium formula before flowering to support fruit development. Avoid excessive nitrogen, which promotes vegetative growth at the expense of fruiting. So: a balanced feed or compost at planting, then a high-potash liquid every 1-2 weeks from first flower through harvest across the main season (spring through early autumn).

What strength of feed for horse mango?

What does over-feeding horse mango look like?

Vigorous dark-green leafy growth but few flowers or fruit (excess nitrogen). Lush foliage hiding the crop; soft growth prone to pests and disease. Salt crust on the soil and scorched leaf edges in containers. Staying on a high-nitrogen feed once horse mango starts flowering is the classic error — you get a huge leafy plant and a disappointing crop. Switch to high-potash the moment flowers appear.

Should I flush the soil of horse mango?