Fertilising guide
How to fertilise Pink Flowering Dogwood (Cornus florida 'Rubra')— schedule & NPK
Also called Pink Flowering Dogwood, Red Flowering Dogwood, Rubra Dogwood.
More about pink flowering dogwood
About Pink Flowering Dogwood
Cornus florida 'Rubra' · also called Pink Flowering Dogwood, Red Flowering Dogwood · flowering
'Rubra' is the classic pink-bracted flowering dogwood, the earliest widely grown pink form of Cornus florida. Its rosy-pink to pale red bracts open in mid-spring on bare branches, followed by lustrous summer foliage turning scarlet in autumn and clusters of red berries. A layered understory tree of great four-season garden value in moist, acidic woodland settings.
Growth habit: Small to medium deciduous tree with a characteristic horizontal, layered canopy broader than it is tall. Branches spread in distinct tiers, creating a graceful woodland silhouette visible even in winter.
What fertiliser pink flowering dogwood actually wants — and why
Pink Flowering Dogwood is an acid-loving plant — it can only take up nutrients in acidic soil, so the feed itself matters less than using an ericaceous formula and never liming.
An ericaceous (acidic) fertiliser, formulated to keep the soil pH low and supply iron and trace elements in a form acid-loving roots can absorb. Ordinary feeds and any lime lock out iron and yellow the leaves.
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 pink flowering dogwood: 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 pink flowering dogwood, 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 pink flowering dogwood:
Apply a slow-release ericaceous or acidifying fertiliser (e.g., 10-5-4) once in early spring as buds swell. Top-dressing with leaf mould or composted pine bark annually maintains soil acidity and fertility. Avoid high-nitrogen feeds that produce disease-prone soft growth. In practice: an ericaceous feed in spring as growth resumes, repeated through the main growing months; never apply lime, bonemeal or wood ash, which raise pH.
The dormant-season rule matters more than the exact interval: skip feeding entirely when pink flowering dogwood 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 pink flowering dogwood
Follow the ericaceous product's own rate — these are formulated for the plant, so the dilution on the label is right for pink flowering dogwood. The variable that actually matters is pH, not concentration.
Feeding always goes onto already-damp soil, never dry roots — water pink flowering dogwood first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the pink flowering dogwood watering schedule.
Signs you are over-feeding pink flowering dogwood
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for pink flowering dogwood:
- Brown, scorched leaf margins from too strong or too frequent a dose.
- White salt crust on the soil surface.
- Soft, lush growth that fruits or flowers poorly.
Signs you are under-feeding pink flowering dogwood
- Yellowing leaves with green veins (iron chlorosis from high pH).
- Weak growth, poor cropping and an overall pale, stressed look.
- Stunted new shoots in spring despite adequate water and light.
If the symptoms point at watering, light or roots rather than nutrition, the full pink flowering dogwood care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush pink flowering dogwood with rainwater (not hard tap water, which raises pH) if salts build up; better still, mulch with pine needles or composted bark and water with rainwater to hold the acidity.
Organic vs synthetic feeds for pink flowering dogwood
Organic options
Composted pine bark, pine-needle mulch, used coffee grounds and an organic ericaceous feed gently maintain acidity. UK: Vitax or Westland Ericaceous; US: Espoma Holly-tone or Dr. Earth Acid Lovers. Slow, soil-improving, hard to overdo.
Synthetic / liquid feeds
A liquid or granular ericaceous feed — UK: Miracle-Gro Ericaceous, Vitax or Westland; US: Miracle-Gro Acid-Loving Plant Food or Espoma Holly-tone. Pair with rainwater and an acidic mulch for it to work.
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 pink flowering dogwood — frequently asked questions
What fertiliser does pink flowering dogwood need?
An ericaceous (acidic) fertiliser, formulated to keep the soil pH low and supply iron and trace elements in a form acid-loving roots can absorb. Ordinary feeds and any lime lock out iron and yellow the leaves. Pink Flowering Dogwood is an acid-loving plant — it can only take up nutrients in acidic soil, so the feed itself matters less than using an ericaceous formula and never liming.
How often should I feed pink flowering dogwood?
Apply a slow-release ericaceous or acidifying fertiliser (e.g., 10-5-4) once in early spring as buds swell. Top-dressing with leaf mould or composted pine bark annually maintains soil acidity and fertility. Avoid high-nitrogen feeds that produce disease-prone soft growth. Apply a slow-release ericaceous or acidifying fertiliser (e.g., 10-5-4) once in early spring as buds swell. Top-dressing with leaf mould or composted pine bark annually maintains soil acidity and fertility. Avoid high-nitrogen feeds that produce disease-prone soft growth. In practice: an ericaceous feed in spring as growth resumes, repeated through the main growing months; never apply lime, bonemeal or wood ash, which raise pH.
What strength of feed for pink flowering dogwood?
Follow the ericaceous product's own rate — these are formulated for the plant, so the dilution on the label is right for pink flowering dogwood. The variable that actually matters is pH, not concentration.
What does over-feeding pink flowering dogwood look like?
Brown, scorched leaf margins from too strong or too frequent a dose. White salt crust on the soil surface. Soft, lush growth that fruits or flowers poorly. Feeding pink flowering dogwood an ordinary fertiliser, or growing it in hard tap water / limey soil, is the defining mistake — it triggers lime-induced chlorosis (yellow leaves, green veins) no amount of feeding fixes until the pH comes down.
Should I flush the soil of pink flowering dogwood?
Flush pink flowering dogwood with rainwater (not hard tap water, which raises pH) if salts build up; better still, mulch with pine needles or composted bark and water with rainwater to hold the acidity.
Keep reading
- Pink Flowering Dogwood care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water pink flowering dogwood — 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 camellia 'jury's yellow'
- How to fertilise rhododendron 'catawbiense boursault'
- How to fertilise rhododendron 'pjm'
- All 8452 fertilising guides in the Growli library