Getting it to bloom
Why won't my Buddleja davidii 'White Profusion' bloom? (and how to make it flower)
Also called White Profusion butterfly bush, white buddleja (Buddleja davidii 'White Profusion').
More about buddleja davidii 'white profusion'
About Buddleja davidii 'White Profusion'
Buddleja davidii 'White Profusion' · also called White Profusion butterfly bush, white buddleja · flowering
'White Profusion' is a vigorous butterfly bush bearing long, fragrant white flower panicles with yellow-orange eyes from mid-summer to autumn, magnetic to butterflies and bees. It wants full sun and free-draining soil, blooms on new wood, and responds to hard spring pruning with masses of flowers. Deadhead to prolong bloom and curb self-seeding.
Plant type: flowering
Watch for — Leggy, sparse bloom: Skipped pruning gives bare, top-heavy stems with smaller flowers. Hard-prune to a low framework in early spring.
The reasons buddleja davidii 'white profusion' isn't blooming
Almost every non-blooming buddleja davidii 'white profusion' 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 buddleja davidii 'white profusion' 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 buddleja davidii 'white profusion' to flower
- Maximise sun. Give buddleja davidii 'white profusion' 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 buddleja davidii 'white profusion' and get the feeding right with the buddleja davidii 'white profusion' 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
Buddleja davidii 'White Profusion' 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 buddleja davidii 'white profusion' care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.
Buddleja davidii 'White Profusion' blooming — frequently asked questions
Why won't my buddleja davidii 'white profusion' flower?
Buddleja davidii 'White Profusion' 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 buddleja davidii 'white profusion' bloom?
Give buddleja davidii 'white profusion' 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 buddleja davidii 'white profusion' normally bloom?
Buddleja davidii 'White Profusion' flowers across its growing season (mostly summer) and, kept fed and deadheaded, can bloom for many weeks or right up to frost.
What should I do with buddleja davidii 'white profusion' after it flowers?
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.
What is the single biggest mistake stopping buddleja davidii 'white profusion' flowering?
Feeding buddleja davidii 'white profusion' a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.
Keep reading
- Buddleja davidii 'White Profusion' care — the full brief (light, water, humidity, problems, pet safety)
- Buddleja davidii 'White Profusion' light needs — usually the first thing to fix for flowers
- Buddleja davidii 'White Profusion' fertilising — the right feed for buds, not just leaves
- Should I water my plant? The simple check
- Why is my plant wilting? Wet vs dry
- Underwatered plant — signs and rehydration
- Why won't my peace lily bloom?
- Why won't my jade plant bloom?
- Why won't my tomato bloom?
- All 1410 bloom guides in the Growli library