Fertilising guide
How to fertilise Plum Pudding Heuchera (Heuchera 'Plum Pudding')— schedule & NPK
Also called Plum Pudding coral bells, silvered purple heuchera.
More about plum pudding heuchera
About Plum Pudding Heuchera
Heuchera 'Plum Pudding' · also called Plum Pudding coral bells, silvered purple heuchera · flowering
'Plum Pudding' is a popular coral bells with metallic plum-purple maple-shaped leaves overlaid with a silvery sheen and darker veins, holding colour through the season and into mild winters. A reliable evergreen mound, it sends up slender stems of tiny creamy flowers in early summer. A versatile, well-behaved choice for shade borders, edging, and containers.
Growth habit: Compact, evergreen to semi-evergreen clump-forming perennial making a tidy mound of silvered plum leaves; wiry flower stems rise well above the foliage.
What fertiliser plum pudding heuchera actually wants — and why
Plum Pudding Heuchera 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 plum pudding heuchera: 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 plum pudding heuchera, 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 plum pudding heuchera:
Light feeder: apply a balanced slow-release fertiliser or compost in spring. Avoid heavy feeding, which makes the mound floppy. Refresh mulch yearly to keep the soil in good heart. 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 plum pudding heuchera 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 plum pudding heuchera
Half strength is the safe default for plum pudding heuchera — 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 plum pudding heuchera first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the plum pudding heuchera watering schedule.
Signs you are over-feeding plum pudding heuchera
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for plum pudding heuchera:
- 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 plum pudding heuchera
- 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 plum pudding heuchera care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of plum pudding heuchera 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 plum pudding heuchera
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 plum pudding heuchera — frequently asked questions
What fertiliser does plum pudding heuchera 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. Plum Pudding Heuchera 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 plum pudding heuchera?
Light feeder: apply a balanced slow-release fertiliser or compost in spring. Avoid heavy feeding, which makes the mound floppy. Refresh mulch yearly to keep the soil in good heart. Light feeder: apply a balanced slow-release fertiliser or compost in spring. Avoid heavy feeding, which makes the mound floppy. Refresh mulch yearly to keep the soil in good heart. 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 plum pudding heuchera?
Half strength is the safe default for plum pudding heuchera — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding plum pudding heuchera 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 plum pudding heuchera 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 plum pudding heuchera?
Flush the pot of plum pudding heuchera 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
- Plum Pudding Heuchera care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water plum pudding heuchera — the watering schedule
- The houseplant fertiliser schedule — feeding through the year
- NPK ratio explained — what the three numbers on the bottle mean
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- All 3899 fertilising guides in the Growli library