Fertilising guide
How to fertilise Yellow Ice Plant (Delosperma nubigenum)— schedule & NPK
Also called Yellow Ice Plant, Hardy Yellow Ice Plant, Cloud-loving Ice Plant.
More about yellow ice plant
About Yellow Ice Plant
Delosperma nubigenum · also called Yellow Ice Plant, Hardy Yellow Ice Plant · flowering
Delosperma nubigenum is the hardiest ice plant in cultivation, forming a tight, 2-inch mat of succulent, yellowish-green leaves that bronze in winter. Bright yellow, daisy-like flowers blanket the foliage in late spring. Thrives in full sun and sharply drained soil; drought-tolerant once established and exceptional for rock gardens and slopes.
Growth habit: Mat-forming, creeping perennial groundcover; spreads laterally by rooting stems
Watch for — Failure to flower: Usually due to too much shade or over-fertilising with nitrogen. Ensure full sun and avoid high-nitrogen feeds, which promote foliage at the expense of blooms.
What fertiliser yellow ice plant actually wants — and why
Yellow Ice Plant 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 yellow ice plant: 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 yellow ice plant, 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 yellow ice plant:
Light feeding only. Apply a balanced, low-nitrogen liquid fertiliser (e.g. 5-10-10) once in spring as growth resumes. Do not feed in summer, autumn, or winter. Over-fertilising produces lush, weak growth prone to rotting. 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 yellow ice plant 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 yellow ice plant
Half strength is the safe default for yellow ice plant — 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 yellow ice plant first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the yellow ice plant watering schedule.
Signs you are over-feeding yellow ice plant
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for yellow ice plant:
- 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 yellow ice plant
- 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 yellow ice plant care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of yellow ice plant 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 yellow ice plant
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 yellow ice plant — frequently asked questions
What fertiliser does yellow ice plant 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. Yellow Ice Plant 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 yellow ice plant?
Light feeding only. Apply a balanced, low-nitrogen liquid fertiliser (e.g. 5-10-10) once in spring as growth resumes. Do not feed in summer, autumn, or winter. Over-fertilising produces lush, weak growth prone to rotting. Light feeding only. Apply a balanced, low-nitrogen liquid fertiliser (e.g. 5-10-10) once in spring as growth resumes. Do not feed in summer, autumn, or winter. Over-fertilising produces lush, weak growth prone to rotting. 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 yellow ice plant?
Half strength is the safe default for yellow ice plant — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding yellow ice plant 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 yellow ice plant 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 yellow ice plant?
Flush the pot of yellow ice plant 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
- Yellow Ice Plant care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water yellow ice plant — 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 anguloa clowesii
- How to fertilise stanhopea tigrina
- How to fertilise rodriguezia secunda
- All 8452 fertilising guides in the Growli library