Fertilising guide
How to fertilise Gold Dust Alyssum (Aurinia saxatilis)— schedule & NPK
Also called Gold dust alyssum, Basket of gold, Yellow alyssum, Golden tuft.
More about gold dust alyssum
About Gold Dust Alyssum
Aurinia saxatilis · also called Gold dust alyssum, Basket of gold · flowering
Aurinia saxatilis is a mat-forming hardy perennial native to rocky limestone slopes and cliffs across central and southern Europe, producing dense clusters of vivid golden-yellow flowers in mid to late spring. It thrives in lean, sharply drained alkaline soil in full sun, tolerating drought and poor fertility far better than rich, moist conditions. The most critical care point is that this plant will quickly rot in heavy, moisture-retentive soil — good drainage is non-negotiable. It is not listed as toxic to cats or dogs by the ASPCA.
Growth habit: Low, mound-forming, semi-evergreen perennial with grey-green, hairy foliage forming a dense cushion above which flower stems arise in spring.
What fertiliser gold dust alyssum actually wants — and why
Gold Dust Alyssum 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 gold dust alyssum: 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 gold dust alyssum, 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 gold dust alyssum:
Feeding is rarely needed and can be counterproductive; if growth is very poor, apply a single very dilute balanced liquid feed in early spring — avoid high-nitrogen formulations. 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 gold dust alyssum 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 gold dust alyssum
Half strength is the safe default for gold dust alyssum — 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 gold dust alyssum first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the gold dust alyssum watering schedule.
Signs you are over-feeding gold dust alyssum
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for gold dust alyssum:
- 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 gold dust alyssum
- 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 gold dust alyssum care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of gold dust alyssum 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 gold dust alyssum
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 gold dust alyssum — frequently asked questions
What fertiliser does gold dust alyssum 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. Gold Dust Alyssum 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 gold dust alyssum?
Feeding is rarely needed and can be counterproductive; if growth is very poor, apply a single very dilute balanced liquid feed in early spring — avoid high-nitrogen formulations. Feeding is rarely needed and can be counterproductive; if growth is very poor, apply a single very dilute balanced liquid feed in early spring — avoid high-nitrogen formulations. 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 gold dust alyssum?
Half strength is the safe default for gold dust alyssum — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding gold dust alyssum 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 gold dust alyssum 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 gold dust alyssum?
Flush the pot of gold dust alyssum 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
- Gold Dust Alyssum care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water gold dust alyssum — 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 10153 fertilising guides in the Growli library