Getting it to bloom

Why won't my Dahlia 'Bishop of Dover' bloom? (and how to make it flower)

Also called Bishop of Dover Dahlia (Dahlia 'Bishop of Dover').

More about dahlia 'bishop of dover'

About Dahlia 'Bishop of Dover'

Dahlia 'Bishop of Dover' · also called Bishop of Dover Dahlia · flowering

Dahlia 'Bishop of Dover' is a Bishop Series cultivar bearing pure white, semi-double flowers with a yellow eye, dramatically set against the signature deep bronze-black foliage of the series. It offers a striking contrast of cool white blooms and dark leaves. A compact, sun-loving tender perennial with tubers that must be lifted before hard frost. Mildly toxic to pets.

Plant type: flowering

The reasons dahlia 'bishop of dover' isn't blooming

Almost every non-blooming dahlia 'bishop of dover' 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 dahlia 'bishop of dover' 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 dahlia 'bishop of dover' to flower

Maximise sun. Give dahlia 'bishop of dover' 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 dahlia 'bishop of dover' and get the feeding right with the dahlia 'bishop of dover' 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

Dahlia 'Bishop of Dover' 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 dahlia 'bishop of dover' care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Dahlia 'Bishop of Dover' blooming — frequently asked questions

Why won't my dahlia 'bishop of dover' flower?

Dahlia 'Bishop of Dover' 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 dahlia 'bishop of dover' bloom?

Give dahlia 'bishop of dover' 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 dahlia 'bishop of dover' normally bloom?