Getting it to bloom
Why won't my Physocarpus opulifolius 'Summer Wine' bloom? (and how to make it flower)
Also called Summer Wine ninebark, compact purple ninebark (Physocarpus opulifolius 'Seward' (Summer Wine)).
More about physocarpus opulifolius 'summer wine'
About Physocarpus opulifolius 'Summer Wine'
Physocarpus opulifolius 'Seward' (Summer Wine) · also called Summer Wine ninebark, compact purple ninebark · flowering
'Summer Wine' is a more compact, finely textured purple ninebark, with deep wine-red leaves on dense, arching branches and pinkish-white flower clusters in early summer. Bred from a 'Diabolo' cross, it keeps richer colour on a tidier, fuller frame ideal for smaller gardens. Extremely hardy and adaptable, it performs best in full sun on most soils.
Plant type: flowering
Watch for — Crowding over time: Its dense habit can become congested. Thin the oldest stems and prune lightly after flowering to keep it shapely.
The reasons physocarpus opulifolius 'summer wine' isn't blooming
Almost every non-blooming physocarpus opulifolius 'summer wine' 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 physocarpus opulifolius 'summer wine' 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 physocarpus opulifolius 'summer wine' to flower
- Maximise sun. Give physocarpus opulifolius 'summer wine' 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 physocarpus opulifolius 'summer wine' and get the feeding right with the physocarpus opulifolius 'summer wine' 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
Physocarpus opulifolius 'Summer Wine' 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 physocarpus opulifolius 'summer wine' care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.
Physocarpus opulifolius 'Summer Wine' blooming — frequently asked questions
Why won't my physocarpus opulifolius 'summer wine' flower?
Physocarpus opulifolius 'Summer Wine' 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 physocarpus opulifolius 'summer wine' bloom?
Give physocarpus opulifolius 'summer wine' 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 physocarpus opulifolius 'summer wine' normally bloom?
Physocarpus opulifolius 'Summer Wine' 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 physocarpus opulifolius 'summer wine' 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 physocarpus opulifolius 'summer wine' flowering?
Feeding physocarpus opulifolius 'summer wine' a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.
Keep reading
- Physocarpus opulifolius 'Summer Wine' care — the full brief (light, water, humidity, problems, pet safety)
- Physocarpus opulifolius 'Summer Wine' light needs — usually the first thing to fix for flowers
- Physocarpus opulifolius 'Summer Wine' 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