Fertilising guide

How to fertilise Souvenir de la Malmaison Rose (Rosa 'Souvenir de la Malmaison')— schedule & NPK

Also called Souvenir de la Malmaison, Queen of Beauty and Fragrance.

More about souvenir de la malmaison rose

About Souvenir de la Malmaison Rose

Rosa 'Souvenir de la Malmaison' · also called Souvenir de la Malmaison, Queen of Beauty and Fragrance · flowering

Souvenir de la Malmaison is a classic Bourbon rose from 1843, prized for large, flat, quartered blush-pink blooms packed with petals and a rich, spicy old-rose fragrance. Repeat-flowering and available as bush or climbing forms, it performs best in warm, dry climates because its full flowers ball and spoil in persistent rain. Often nicknamed the Queen of Beauty and Fragrance.

Growth habit: Available as a compact, somewhat lax Bourbon shrub or a vigorous climbing sport; repeat-flowers through summer and autumn on old and new wood, and dislikes hard pruning.

What fertiliser souvenir de la malmaison rose actually wants — and why

Souvenir de la Malmaison Rose 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 souvenir de la malmaison rose: 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 souvenir de la malmaison rose, 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 souvenir de la malmaison rose:

Feed with a balanced rose fertiliser in early spring and again after the first flush, with an annual mulch of rotted manure. It resents hard pruning, so feed to sustain growth rather than cutting back severely. 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 souvenir de la malmaison rose 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 souvenir de la malmaison rose

Follow the flowering-feed label rate for souvenir de la malmaison rose, 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 souvenir de la malmaison rose first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the souvenir de la malmaison rose watering schedule.

Signs you are over-feeding souvenir de la malmaison rose

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for souvenir de la malmaison rose:

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 souvenir de la malmaison rose

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 souvenir de la malmaison rose care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Container-grown souvenir de la malmaison rose 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 souvenir de la malmaison rose

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 souvenir de la malmaison rose — frequently asked questions

What fertiliser does souvenir de la malmaison rose 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. Souvenir de la Malmaison Rose 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 souvenir de la malmaison rose?

Feed with a balanced rose fertiliser in early spring and again after the first flush, with an annual mulch of rotted manure. It resents hard pruning, so feed to sustain growth rather than cutting back severely. Feed with a balanced rose fertiliser in early spring and again after the first flush, with an annual mulch of rotted manure. It resents hard pruning, so feed to sustain growth rather than cutting back severely. 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 souvenir de la malmaison rose?

What does over-feeding souvenir de la malmaison rose 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 souvenir de la malmaison rose 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 souvenir de la malmaison rose?