Getting it to bloom
Why won't my Rainbow Leucothoe bloom? (and how to make it flower)
Also called Rainbow leucothoe, Rainbow dog hobble, Rainbow fetterbush (Leucothoe fontanesiana 'Rainbow').
More about rainbow leucothoe
About Rainbow Leucothoe
Leucothoe fontanesiana 'Rainbow' · also called Rainbow leucothoe, Rainbow dog hobble · flowering
A variegated cultivar of the Appalachian drooping leucothoe, 'Rainbow' displays striking foliage mottled in shades of green, cream, pink, and bronze—most vivid on new growth and in cool seasons. White spring flowers add further interest. It shares the species' need for moist, acidic shade and performs well as a textural border or container plant in zones 5–8.
Plant type: flowering
The reasons rainbow leucothoe isn't blooming
Almost every non-blooming rainbow leucothoe 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 rainbow leucothoe 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 rainbow leucothoe to flower
- Maximise sun. Give rainbow leucothoe 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 rainbow leucothoe and get the feeding right with the rainbow leucothoe 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
Rainbow Leucothoe 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 rainbow leucothoe care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.
Rainbow Leucothoe blooming — frequently asked questions
Why won't my rainbow leucothoe flower?
Rainbow Leucothoe 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 rainbow leucothoe bloom?
Give rainbow leucothoe 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 rainbow leucothoe normally bloom?
Rainbow Leucothoe 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 rainbow leucothoe 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 rainbow leucothoe flowering?
Feeding rainbow leucothoe a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.
Keep reading
- Rainbow Leucothoe care — the full brief (light, water, humidity, problems, pet safety)
- Rainbow Leucothoe light needs — usually the first thing to fix for flowers
- Rainbow Leucothoe 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 3229 bloom guides in the Growli library