Getting it to bloom

Why won't my Waldensian Saxifrage bloom? (and how to make it flower)

Also called Waldensian saxifrage, Encrusted saxifrage, Silver saxifrage (Saxifraga valdensis).

More about waldensian saxifrage

About Waldensian Saxifrage

Saxifraga valdensis · also called Waldensian saxifrage, Encrusted saxifrage · flowering

Saxifraga valdensis is a rare, small encrusted (Ligulatae section) saxifrage native to a very restricted range of limestone cliffs in the Cottian Alps on the French-Italian border — the historic Waldensian valleys. It forms very tight mounds of tiny, silvery, lime-encrusted leaves and bears short stems carrying white flowers in late spring. Because of its extremely compact habit and sensitivity to winter dampness, it is most reliably grown in an alpine house or a well-drained trough. The genus Saxifraga is not known to be toxic to cats or dogs.

Plant type: flowering

The reasons waldensian saxifrage isn't blooming

Almost every non-blooming waldensian saxifrage 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 waldensian saxifrage 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 waldensian saxifrage to flower

Maximise sun. Give waldensian saxifrage 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 waldensian saxifrage and get the feeding right with the waldensian saxifrage 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

Waldensian Saxifrage 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 waldensian saxifrage care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Waldensian Saxifrage blooming — frequently asked questions

Why won't my waldensian saxifrage flower?

Waldensian Saxifrage 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 waldensian saxifrage bloom?

Give waldensian saxifrage 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 waldensian saxifrage normally bloom?