Fertilising guide
How to fertilise Broadleaf Stonecrop (Sedum spathulifolium)— schedule & NPK
Also called Broadleaf Stonecrop, Spoon-Leaved Stonecrop, Coast Stonecrop.
More about broadleaf stonecrop
About Broadleaf Stonecrop
Sedum spathulifolium · also called Broadleaf Stonecrop, Spoon-Leaved Stonecrop · houseplant
Sedum spathulifolium is a low-growing native stonecrop from the Pacific Coast of North America, forming tight rosettes of spoon-shaped, waxy leaves dusted with a silvery or purple-flushed bloom. Hardy and adaptable, it suits alpine troughs, rock gardens, and bright indoor containers. Bright yellow star-shaped flowers appear in early summer. ASPCA lists Sedum as non-toxic.
Growth habit: Mat-forming, low-growing perennial; tight flattened rosettes spreading by offsets to form a dense carpet
Watch for — Vine weevil larvae (outdoors): Larvae feed on roots, causing plants to wilt and detach from the soil easily. Check the root zone in early autumn. Apply nematodes (Steinernema kraussei) in late summer when soil is warm and moist, or use licensed vine weevil compost treatments.
What fertiliser broadleaf stonecrop actually wants — and why
Broadleaf Stonecrop 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 broadleaf stonecrop: 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 broadleaf stonecrop, 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 broadleaf stonecrop:
Feed sparingly — once in spring with a diluted low-nitrogen fertiliser is sufficient. Overfertilising produces soft, open growth that loses the species' characteristic silvery compactness. 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 broadleaf stonecrop 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 broadleaf stonecrop
Half strength is the safe default for broadleaf stonecrop — 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 broadleaf stonecrop first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the broadleaf stonecrop watering schedule.
Signs you are over-feeding broadleaf stonecrop
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for broadleaf stonecrop:
- 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 broadleaf stonecrop
- 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 broadleaf stonecrop care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of broadleaf stonecrop 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 broadleaf stonecrop
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 broadleaf stonecrop — frequently asked questions
What fertiliser does broadleaf stonecrop 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. Broadleaf Stonecrop 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 broadleaf stonecrop?
Feed sparingly — once in spring with a diluted low-nitrogen fertiliser is sufficient. Overfertilising produces soft, open growth that loses the species' characteristic silvery compactness. Feed sparingly — once in spring with a diluted low-nitrogen fertiliser is sufficient. Overfertilising produces soft, open growth that loses the species' characteristic silvery compactness. 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 broadleaf stonecrop?
Half strength is the safe default for broadleaf stonecrop — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding broadleaf stonecrop 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 broadleaf stonecrop 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 broadleaf stonecrop?
Flush the pot of broadleaf stonecrop 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
- Broadleaf Stonecrop care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water broadleaf stonecrop — 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 beautiful sundew
- How to fertilise pink sundew
- How to fertilise drummond's pitcher plant
- All 6887 fertilising guides in the Growli library