Getting it to bloom

Why won't my Humulus lupulus 'Aureus' bloom? (and how to make it flower)

Also called golden hops, yellow hops vine (Humulus lupulus 'Aureus').

More about humulus lupulus 'aureus'

About Humulus lupulus 'Aureus'

Humulus lupulus 'Aureus' · also called golden hops, yellow hops vine · flowering

Humulus lupulus 'Aureus', golden hops, is a fast herbaceous perennial climber grown for its luminous golden-yellow foliage rather than its cones. Vigorous twining bines clothe arches and trellis in lime-gold lobed leaves through summer before dying back in winter. It holds the RHS Award of Garden Merit for its dependable ornamental colour.

Plant type: flowering

The reasons humulus lupulus 'aureus' isn't blooming

Almost every non-blooming humulus lupulus 'aureus' 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 humulus lupulus 'aureus' 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 humulus lupulus 'aureus' to flower

Maximise sun. Give humulus lupulus 'aureus' 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 humulus lupulus 'aureus' and get the feeding right with the humulus lupulus 'aureus' 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

Humulus lupulus 'Aureus' 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 humulus lupulus 'aureus' care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Humulus lupulus 'Aureus' blooming — frequently asked questions

Why won't my humulus lupulus 'aureus' flower?

Humulus lupulus 'Aureus' 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 humulus lupulus 'aureus' bloom?

Give humulus lupulus 'aureus' 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 humulus lupulus 'aureus' normally bloom?