Fertilising guide

How to fertilise Geranium x oxonianum 'Claridge Druce' (Geranium x oxonianum 'Claridge Druce')— schedule & NPK

Also called Claridge Druce geranium.

More about geranium x oxonianum 'claridge druce'

About Geranium x oxonianum 'Claridge Druce'

Geranium x oxonianum 'Claridge Druce' · also called Claridge Druce geranium · flowering

One of the most vigorous oxonianum cranesbills, 'Claridge Druce' makes a robust, weed-smothering mound of grey-green semi-evergreen leaves topped with rose-pink, dark-veined flowers all summer. Extremely tough and shade-tolerant, it thrives in difficult dry spots and rough ground, but it self-seeds enthusiastically and can colonise widely if not deadheaded.

Growth habit: Robust, fast-spreading mound that knits into broad groundcover and self-seeds freely; semi-evergreen grey-green foliage suppresses weeds strongly.

What fertiliser geranium x oxonianum 'claridge druce' actually wants — and why

Geranium x oxonianum 'Claridge Druce' is a heavy-blooming flower with a big appetite — a regular high-potash feed through the season is what drives a long, dense display.

A high-potassium ("high-potash") flowering feed — tomato-style or a dedicated bloom/rose feed. Potassium powers flowering; a high-nitrogen feed gives you a leafy plant with disappointing bloom.

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 geranium x oxonianum 'claridge druce': 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 geranium x oxonianum 'claridge druce', 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 geranium x oxonianum 'claridge druce':

Light feeder and already vigorous, so feed sparingly. A spring compost mulch is plenty; extra fertiliser only fuels rampant leafy growth and heavier self-seeding rather than better flowers. For a hungry bloomer that means feeding regularly — sparingly through the growing season — right through flowering across the main season (spring through early autumn), tapering as blooming ends.

The dormant-season rule matters more than the exact interval: skip feeding entirely when geranium x oxonianum 'claridge druce' 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 geranium x oxonianum 'claridge druce'

Follow the flowering-feed label rate for geranium x oxonianum 'claridge druce', or half strength if feeding very frequently. These plants genuinely use the nutrients — under-feeding shows up fast as a thin display.

Feeding always goes onto already-damp soil, never dry roots — water geranium x oxonianum 'claridge druce' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the geranium x oxonianum 'claridge druce' watering schedule.

Signs you are over-feeding geranium x oxonianum 'claridge druce'

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for geranium x oxonianum 'claridge druce':

Lots of lush leaves but few flowers (too much nitrogen).
Scorched leaf edges and salt crust from too-strong or too-frequent feeds.
Soft, sappy growth prone to aphids and mildew.

Signs you are under-feeding geranium x oxonianum 'claridge druce'

Sparse, small, short-lived flowers and pale foliage.
A tired plant that stops blooming early in the season.
Weak growth and poor repeat-flowering after the first flush.

If the symptoms point at watering, light or roots rather than nutrition, the full geranium x oxonianum 'claridge druce' care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Container-grown geranium x oxonianum 'claridge druce' accumulates feed salts fast with frequent feeding — water until it drains each time and flush pots with plain water every few weeks to prevent scorch.

Organic vs synthetic feeds for geranium x oxonianum 'claridge druce'

Organic options

A liquid comfrey or seaweed feed (naturally potassium-rich) plus compost or well-rotted manure as a mulch. UK: comfrey feed, organic Tomorite, or rose feed; US: Espoma Rose-tone or Neptune's Harvest. Feeds and improves soil.

Synthetic / liquid feeds

A high-potash flowering feed on a regular cadence — UK: Tomorite (Levington), Phostrogen or a specialist rose feed; US: Miracle-Gro Bloom Booster or a rose food. Fast, reliable bloom response.

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 geranium x oxonianum 'claridge druce' — frequently asked questions

What fertiliser does geranium x oxonianum 'claridge druce' need?

A high-potassium ("high-potash") flowering feed — tomato-style or a dedicated bloom/rose feed. Potassium powers flowering; a high-nitrogen feed gives you a leafy plant with disappointing bloom. Geranium x oxonianum 'Claridge Druce' is a heavy-blooming flower with a big appetite — a regular high-potash feed through the season is what drives a long, dense display.

How often should I feed geranium x oxonianum 'claridge druce'?

Light feeder and already vigorous, so feed sparingly. A spring compost mulch is plenty; extra fertiliser only fuels rampant leafy growth and heavier self-seeding rather than better flowers. Light feeder and already vigorous, so feed sparingly. A spring compost mulch is plenty; extra fertiliser only fuels rampant leafy growth and heavier self-seeding rather than better flowers. For a hungry bloomer that means feeding regularly — sparingly through the growing season — right through flowering across the main season (spring through early autumn), tapering as blooming ends.

What strength of feed for geranium x oxonianum 'claridge druce'?

What does over-feeding geranium x oxonianum 'claridge druce' look like?

Lots of lush leaves but few flowers (too much nitrogen). Scorched leaf edges and salt crust from too-strong or too-frequent feeds. Soft, sappy growth prone to aphids and mildew. Using a high-nitrogen general feed on geranium x oxonianum 'claridge druce' is the headline mistake — you grow a big leafy plant with few flowers. The second is simply under-feeding a genuinely hungry bloomer and getting a sparse, short display.

Should I flush the soil of geranium x oxonianum 'claridge druce'?