Getting it to bloom

Why won't my Italian Sage Phlomis bloom? (and how to make it flower)

Also called Italian sage phlomis, Italian phlomis (Phlomis italica).

More about italian sage phlomis

About Italian Sage Phlomis

Phlomis italica · also called Italian sage phlomis, Italian phlomis · flowering

Phlomis italica is a compact, woolly-leaved shrub native to the Balearic Islands (Mallorca and Ibiza), thriving in hot, dry, rocky Mediterranean conditions. It produces whorls of soft pink to lilac flowers in early to midsummer on upright stems clad in grey-green, densely felted foliage. The single most important care fact is that it requires extremely well-drained soil and full sun — wet winters are its primary killer. Phlomis italica is not listed by the ASPCA as toxic; it is generally considered mildly-toxic by default due to limited data.

Plant type: flowering

The reasons italian sage phlomis isn't blooming

Almost every non-blooming italian sage phlomis 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 italian sage phlomis 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 italian sage phlomis to flower

Maximise sun. Give italian sage phlomis 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 italian sage phlomis and get the feeding right with the italian sage phlomis 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

Italian Sage Phlomis 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 italian sage phlomis care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Italian Sage Phlomis blooming — frequently asked questions

Why won't my italian sage phlomis flower?

Italian Sage Phlomis 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 italian sage phlomis bloom?

Give italian sage phlomis 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 italian sage phlomis normally bloom?