Fertilising guide
How to fertilise Weeping White Mulberry (Morus alba 'Pendula')— schedule & NPK
Also called Weeping White Mulberry, Weeping Mulberry.
More about weeping white mulberry
About Weeping White Mulberry
Morus alba 'Pendula' · also called Weeping White Mulberry, Weeping Mulberry · flowering
Weeping White Mulberry is a grafted ornamental form of Morus alba grown for its dramatically cascading branches rather than fruit production. It forms a compact, mushroom-shaped canopy ideal for small gardens and containers. Deciduous with attractive lobed foliage, it offers bold autumn colour and year-round architectural interest with minimal maintenance.
Growth habit: Deciduous small weeping tree, top-grafted onto an upright Morus alba rootstock; branches cascade to the ground
What fertiliser weeping white mulberry actually wants — and why
Weeping White Mulberry 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 white mulberry: 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 white mulberry, 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 white mulberry:
Feed with a balanced slow-release fertiliser in early spring when leaves begin to emerge. Young trees benefit from a second application in early summer to support establishment. Mature specimens rarely need feeding if grown in fertile garden soil. 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 white mulberry 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 white mulberry
Half strength is the safe default for weeping white mulberry — 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 white mulberry first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the weeping white mulberry watering schedule.
Signs you are over-feeding weeping white mulberry
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for weeping white mulberry:
- 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 white mulberry
- 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 white mulberry care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of weeping white mulberry 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 white mulberry
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 white mulberry — frequently asked questions
What fertiliser does weeping white mulberry 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 White Mulberry 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 white mulberry?
Feed with a balanced slow-release fertiliser in early spring when leaves begin to emerge. Young trees benefit from a second application in early summer to support establishment. Mature specimens rarely need feeding if grown in fertile garden soil. Feed with a balanced slow-release fertiliser in early spring when leaves begin to emerge. Young trees benefit from a second application in early summer to support establishment. Mature specimens rarely need feeding if grown in fertile garden soil. 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 white mulberry?
Half strength is the safe default for weeping white mulberry — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding weeping white mulberry 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 white mulberry 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 white mulberry?
Flush the pot of weeping white mulberry 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 White Mulberry care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water weeping white mulberry — 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 solanum laxum 'album'
- How to fertilise solanum crispum 'glasnevin'
- How to fertilise parthenocissus tricuspidata
- All 8452 fertilising guides in the Growli library