Getting it to bloom

Why won't my Iberian Cranesbill bloom? (and how to make it flower)

Also called Iberian Cranesbill, Caucasian Cranesbill (Geranium ibericum).

More about iberian cranesbill

About Iberian Cranesbill

Geranium ibericum · also called Iberian Cranesbill, Caucasian Cranesbill · flowering

Geranium ibericum is a vigorous herbaceous perennial native to the Caucasus and northeastern Turkey, bearing large upward-facing flowers up to 5 cm across in lavender-blue with fine purple veining from late spring to midsummer. The leaves are broad, hairy, and deeply divided into nine to eleven segments, forming dense ground-covering mounds. One parent of the popular hybrid G. × magnificum, it is easier to grow from seed than its offspring. True Geranium species are non-toxic to cats and dogs per ASPCA guidance.

Plant type: flowering

Watch for — Powdery mildew: White powdery patches on leaves appear after flowering in warm, dry conditions; cut back spent stems promptly and thin congested clumps to improve air circulation.

The reasons iberian cranesbill isn't blooming

Almost every non-blooming iberian cranesbill 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 iberian cranesbill 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 iberian cranesbill to flower

Maximise sun. Give iberian cranesbill 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 iberian cranesbill and get the feeding right with the iberian cranesbill 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

Iberian Cranesbill 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 iberian cranesbill care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Iberian Cranesbill blooming — frequently asked questions

Why won't my iberian cranesbill flower?

Iberian Cranesbill 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 iberian cranesbill bloom?

Give iberian cranesbill 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 iberian cranesbill normally bloom?