Getting it to bloom

Why won't my Musk Mallow bloom? (and how to make it flower)

Also called Musk Mallow, Musk Rose (Malva moschata).

More about musk mallow

About Musk Mallow

Malva moschata · also called Musk Mallow, Musk Rose · flowering

Malva moschata is a bushy, fragrant-leaved perennial wildflower native to meadows and hedgerows across Europe and naturalised in the British Isles. It thrives in full sun on fertile, well-drained soil, and the single most critical care point is to avoid waterlogging — the fleshy taproot rots readily in wet ground. The pale pink (or white in forma alba) mallow flowers appear from June to August and attract bees and butterflies. Musk mallow is not considered toxic to cats, dogs, or humans.

Plant type: flowering

The reasons musk mallow isn't blooming

Almost every non-blooming musk mallow traces back to one of these, roughly in order of how common they are:

Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.
Too much nitrogen feed, driving lush foliage at the expense of flowers (very common with general or lawn feeds).
The plant has not been deadheaded, so it stops flowering once it sets seed.
Irregular watering — drought or waterlogging at the budding stage makes buds abort.
It is still too young or was checked by a transplant and is rebuilding before flowering.

Feeding musk mallow a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.

The fix — how to get musk mallow to flower

Maximise sun. Give musk mallow the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers.
Switch the feed. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.
Deadhead regularly. Remove spent flowers often to keep it producing more rather than stopping to set seed.
Water consistently. Keep moisture even through budding and flowering — drought-then-flood swings make buds drop.

Light and feeding do most of the heavy lifting here. Dial in the spot with the light guide for musk mallow and get the feeding right with the musk mallow fertilising schedule — the wrong feed (too much nitrogen) is one of the most common silent reasons a healthy plant makes leaves instead of flowers.

Bloom season and what to expect

Musk Mallow flowers across its growing season (mostly summer) and, kept fed and deadheaded, can bloom for many weeks or right up to frost.

Post-bloom care so it flowers again

Deadhead, keep feeding lightly, and many will rebloom; collect seed from the best plants at the end of the season if you want to grow them again.

For everything else this plant needs day to day, see the full musk mallow care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Musk Mallow blooming — frequently asked questions

Why won't my musk mallow flower?

Musk Mallow blooms on the season's growth given enough sun, warmth and the right feed — there is no cold or photoperiod trick, just good growing conditions and a bloom-leaning feed. The most common reason it is not happening: Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.

How do I make musk mallow bloom?

Give musk mallow the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.

When does musk mallow normally bloom?