Getting it to bloom

Why won't my Burkwood Viburnum bloom? (and how to make it flower)

Also called Burkwood Viburnum (Viburnum × burkwoodii).

More about burkwood viburnum

About Burkwood Viburnum

Viburnum × burkwoodii · also called Burkwood Viburnum · flowering

Burkwood Viburnum is a vigorous, semi-evergreen hybrid grown for its sweetly clove-scented spring flowers, opening from pink buds into rounded white snowball clusters. Its glossy dark-green leaves are more lustrous than its Korean Spice parent and persist into mild winters. Tough and adaptable, it thrives in full sun to part shade in moist, well-drained soil and shrugs off heat and cold better than V. carlesii.

Plant type: flowering

Watch for — Reduced flowering after hard pruning: Flowers form on old wood; cutting back in late winter removes buds. Prune lightly right after bloom to preserve next year's display.

The reasons burkwood viburnum isn't blooming

Almost every non-blooming burkwood viburnum 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 burkwood viburnum 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 burkwood viburnum to flower

Maximise sun. Give burkwood viburnum 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 burkwood viburnum and get the feeding right with the burkwood viburnum 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

Burkwood Viburnum 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 burkwood viburnum care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Burkwood Viburnum blooming — frequently asked questions

Why won't my burkwood viburnum flower?

Burkwood Viburnum 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 burkwood viburnum bloom?

Give burkwood viburnum 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 burkwood viburnum normally bloom?