Getting it to bloom

Why won't my White Young's Barrenwort bloom? (and how to make it flower)

Also called White Young's Barrenwort, Snow White Barrenwort, Fairy Wings (Epimedium x youngianum 'Niveum').

More about white young's barrenwort

About White Young's Barrenwort

Epimedium x youngianum 'Niveum' · also called White Young's Barrenwort, Snow White Barrenwort · flowering

'Niveum' is a compact, elegant Epimedium hybrid producing a profusion of pure white, spurred flowers on delicate wiry stems in spring. Smaller in stature than most Epimediums, it suits shaded rock gardens, woodland edges, and the fronts of shaded borders. Bronze-tinted new foliage matures to fresh green and often takes on autumn colour before winter dormancy.

Plant type: flowering

Watch for — Flowers obscured by overwintered foliage: Even the semi-deciduous leaves of 'Niveum' can obscure delicate spring flowers if not removed. Cut all foliage to within 5 cm of the ground in late February to early March before flower buds open.

The reasons white young's barrenwort isn't blooming

Almost every non-blooming white young's barrenwort 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 white young's barrenwort 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 white young's barrenwort to flower

Maximise sun. Give white young's barrenwort 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 white young's barrenwort and get the feeding right with the white young's barrenwort 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

White Young's Barrenwort 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 white young's barrenwort care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

White Young's Barrenwort blooming — frequently asked questions

Why won't my white young's barrenwort flower?

White Young's Barrenwort 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 white young's barrenwort bloom?

Give white young's barrenwort 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 white young's barrenwort normally bloom?