Getting it to bloom

Why won't my Pelargonium 'Happy Thought' bloom? (and how to make it flower)

Also called Happy Thought geranium, Butterfly pelargonium (Pelargonium 'Happy Thought').

More about pelargonium 'happy thought'

About Pelargonium 'Happy Thought'

Pelargonium 'Happy Thought' · also called Happy Thought geranium, Butterfly pelargonium · flowering

Pelargonium 'Happy Thought' is a striking variegated zonal geranium whose green leaves carry a bold cream-yellow butterfly splash at the centre. Cheerful single red flowers sit above the foliage all summer. Grown mainly for its eye-catching leaf markings, it thrives in full sun in pots, beds and windowboxes and overwinters frost-free indoors.

Plant type: flowering

Watch for — Grey mould (botrytis): Spent flowers and humid air cause soft grey rot. Deadhead frequently and avoid overhead watering.

The reasons pelargonium 'happy thought' isn't blooming

Almost every non-blooming pelargonium 'happy thought' 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 pelargonium 'happy thought' 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 pelargonium 'happy thought' to flower

Maximise sun. Give pelargonium 'happy thought' 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 pelargonium 'happy thought' and get the feeding right with the pelargonium 'happy thought' 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

Pelargonium 'Happy Thought' 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 pelargonium 'happy thought' care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Pelargonium 'Happy Thought' blooming — frequently asked questions

Why won't my pelargonium 'happy thought' flower?

Pelargonium 'Happy Thought' 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 pelargonium 'happy thought' bloom?

Give pelargonium 'happy thought' 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 pelargonium 'happy thought' normally bloom?