Growli
Let's go

Fertilising guide

How to fertilise Painted Daisy (Tanacetum coccineum)— schedule & NPK

Also called Painted Daisy, Pyrethrum, Persian Daisy.

More about painted daisy

About Painted Daisy

Tanacetum coccineum · also called Painted Daisy, Pyrethrum · flowering

Painted Daisy is a cheerful, long-lived perennial from the Caucasus region, producing vivid single or double daisy flowers in shades of red, pink, magenta, lilac, and white above finely divided, ferny, aromatic foliage. It blooms in late spring to early summer and often reblooms if cut back after first flowering. An excellent cut flower and cottage-garden classic.

Growth habit: Clump-forming perennial; upright ferny basal foliage with erect, branched flowering stems

What fertiliser painted daisy actually wants — and why

Painted Daisy 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 painted daisy: 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 painted daisy, 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 painted daisy:

Apply a balanced fertiliser (e.g. 10-10-10) in early spring as growth resumes. A second light feed after the first flush of blooms promotes rebloom. Avoid excessive nitrogen, which reduces flower production. 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 painted daisy 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 painted daisy

Half strength is the safe default for painted daisy — 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 painted daisy first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the painted daisy watering schedule.

Signs you are over-feeding painted daisy

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for painted daisy:

Signs you are under-feeding painted daisy

If the symptoms point at watering, light or roots rather than nutrition, the full painted daisy care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Flush the pot of painted daisy 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 painted daisy

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 painted daisy — frequently asked questions

What fertiliser does painted daisy 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. Painted Daisy 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 painted daisy?

Apply a balanced fertiliser (e.g. 10-10-10) in early spring as growth resumes. A second light feed after the first flush of blooms promotes rebloom. Avoid excessive nitrogen, which reduces flower production. Apply a balanced fertiliser (e.g. 10-10-10) in early spring as growth resumes. A second light feed after the first flush of blooms promotes rebloom. Avoid excessive nitrogen, which reduces flower production. 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 painted daisy?

Half strength is the safe default for painted daisy — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.

What does over-feeding painted daisy 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 painted daisy 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 painted daisy?

Flush the pot of painted daisy 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