Getting it to bloom

Why won't my Mother of Pearl poppy bloom? (and how to make it flower)

Also called Mother of Pearl poppy, Shirley poppy, Field poppy (Papaver rhoeas 'Mother of Pearl').

More about mother of pearl poppy

About Mother of Pearl poppy

Papaver rhoeas 'Mother of Pearl' · also called Mother of Pearl poppy, Shirley poppy · flowering

Mother of Pearl poppy is a cool-season annual bearing silky, pastel-toned blooms in blush, lavender, grey, and white. Direct-sow in early spring or autumn into poor, well-drained soil and full sun. It thrives on neglect, self-seeds freely, and blooms prolifically for weeks before summer heat ends the display.

Plant type: flowering

Watch for — Aphids on buds and stems: Colonies of grey-green aphids cluster on flower stems and distort buds. Knock off with a strong water jet or apply insecticidal soap spray. Natural predators (ladybirds, lacewings) usually provide adequate control.

The reasons mother of pearl poppy isn't blooming

Almost every non-blooming mother of pearl poppy 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 mother of pearl poppy 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 mother of pearl poppy to flower

Maximise sun. Give mother of pearl poppy 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 mother of pearl poppy and get the feeding right with the mother of pearl poppy 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

Mother of Pearl poppy 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 mother of pearl poppy care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Mother of Pearl poppy blooming — frequently asked questions

Why won't my mother of pearl poppy flower?

Mother of Pearl poppy 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 mother of pearl poppy bloom?

Give mother of pearl poppy 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 mother of pearl poppy normally bloom?