Fertilising guide
How to fertilise Caucasian Draba (Draba bruniifolia)— schedule & NPK
Also called Caucasian Draba, Mossy Draba, Brunnifolia Whitlow Grass.
More about caucasian draba
About Caucasian Draba
Draba bruniifolia · also called Caucasian Draba, Mossy Draba · flowering
Draba bruniifolia is a tiny, bun-forming evergreen perennial from the Caucasus and adjacent mountains of Turkey and Iran, growing in rocky scree and crevices at subalpine to alpine elevations. It forms dense mounds of deep green, softly hairy rosettes and bears clusters of bright yellow flowers in early spring, making it one of the most reliably floriferous small drabas in cultivation. Perfect drainage and full sun are essential; it performs best in cool-summer climates, making it well suited to UK troughs and alpine beds. Toxicity data are absent from the ASPCA database; classified as mildly-toxic as a precautionary measure.
Growth habit: Compact, bun-shaped cushion perennial forming a dense mound of tiny hairy evergreen rosettes.
What fertiliser caucasian draba actually wants — and why
Caucasian Draba 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 caucasian draba: 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 caucasian draba, 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 caucasian draba:
A single spring feed with a dilute balanced fertiliser is sufficient; this slow-growing cushion plant does not need or benefit from regular feeding. 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 caucasian draba 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 caucasian draba
Half strength is the safe default for caucasian draba — 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 caucasian draba first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the caucasian draba watering schedule.
Signs you are over-feeding caucasian draba
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for caucasian draba:
- 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 caucasian draba
- 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 caucasian draba care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of caucasian draba 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 caucasian draba
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 caucasian draba — frequently asked questions
What fertiliser does caucasian draba 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. Caucasian Draba 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 caucasian draba?
A single spring feed with a dilute balanced fertiliser is sufficient; this slow-growing cushion plant does not need or benefit from regular feeding. A single spring feed with a dilute balanced fertiliser is sufficient; this slow-growing cushion plant does not need or benefit from regular feeding. 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 caucasian draba?
Half strength is the safe default for caucasian draba — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding caucasian draba 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 caucasian draba 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 caucasian draba?
Flush the pot of caucasian draba 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
- Caucasian Draba care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water caucasian draba — 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 meadow blazing star
- How to fertilise scaly blazing star
- How to fertilise blue wild indigo
- All 10153 fertilising guides in the Growli library