Getting it to bloom

Why won't my Frohnleiten Epimedium bloom? (and how to make it flower)

Also called Frohnleiten barrenwort, yellow evergreen epimedium (Epimedium × perralchicum 'Frohnleiten').

More about frohnleiten epimedium

About Frohnleiten Epimedium

Epimedium × perralchicum 'Frohnleiten' · also called Frohnleiten barrenwort, yellow evergreen epimedium · flowering

'Frohnleiten' is a robust, evergreen barrenwort grown for glossy, spiny-edged leaflets that emerge marbled red-bronze and flush red in winter, plus bright yellow spurred flowers in spring. One of the most vigorous and drought-tolerant epimediums, it forms a dense, glossy evergreen ground cover that thrives in dry shade where little else succeeds.

Plant type: flowering

Watch for — Worn evergreen leaves: Old foliage can look battered by late winter. Cut it back in late February to reveal fresh growth and the spring flowers.

The reasons frohnleiten epimedium isn't blooming

Almost every non-blooming frohnleiten epimedium 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 frohnleiten epimedium 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 frohnleiten epimedium to flower

Maximise sun. Give frohnleiten epimedium 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 frohnleiten epimedium and get the feeding right with the frohnleiten epimedium 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

Frohnleiten Epimedium 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 frohnleiten epimedium care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Frohnleiten Epimedium blooming — frequently asked questions

Why won't my frohnleiten epimedium flower?

Frohnleiten Epimedium 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 frohnleiten epimedium bloom?

Give frohnleiten epimedium 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 frohnleiten epimedium normally bloom?