Fertilising guide
How to fertilise Hedera colchica (Hedera colchica)— schedule & NPK
Also called Persian ivy, Colchis ivy, elephant's ears ivy.
More about hedera colchica
About Hedera colchica
Hedera colchica · also called Persian ivy, Colchis ivy · flowering
Hedera colchica, Persian ivy, bears the largest leaves of any ivy, big leathery heart-shaped blades to 25 cm, earning the name 'elephant's ears'. Native to the Caucasus and northern Iran, it is a robust, shade-tolerant evergreen climber. Mature growth produces clusters of small greenish flowers followed by black berries, mainly outdoors.
Growth habit: Vigorous evergreen self-clinging climber and groundcover with very large, leathery leaves; climbs walls, fences and trees by aerial roots, and the adult phase flowers and fruits.
What fertiliser hedera colchica actually wants — and why
Hedera colchica 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 hedera colchica: 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 hedera colchica, 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 hedera colchica:
Feed monthly in spring and summer with a balanced liquid feed at half strength for potted plants; established garden plants need little or none. Mulch outdoor specimens annually. Avoid over-feeding, which softens growth. Treat that as monthly 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 hedera colchica 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 hedera colchica
Half strength is the safe default for hedera colchica — 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 hedera colchica first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the hedera colchica watering schedule.
Signs you are over-feeding hedera colchica
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for hedera colchica:
- 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 hedera colchica
- 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 hedera colchica care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of hedera colchica 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 hedera colchica
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 hedera colchica — frequently asked questions
What fertiliser does hedera colchica 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. Hedera colchica 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 hedera colchica?
Feed monthly in spring and summer with a balanced liquid feed at half strength for potted plants; established garden plants need little or none. Mulch outdoor specimens annually. Avoid over-feeding, which softens growth. Feed monthly in spring and summer with a balanced liquid feed at half strength for potted plants; established garden plants need little or none. Mulch outdoor specimens annually. Avoid over-feeding, which softens growth. Treat that as monthly 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 hedera colchica?
Half strength is the safe default for hedera colchica — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding hedera colchica 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 hedera colchica 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 hedera colchica?
Flush the pot of hedera colchica 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
- Hedera colchica care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water hedera colchica — 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 peace lily
- How to fertilise bird of paradise
- How to fertilise hoya
- All 3899 fertilising guides in the Growli library