Clematis are among the most spectacular climbing plants you can grow, but it’s disappointing when the flowers suddenly stop and the display seems to be over.
The good news is that many clematis varieties naturally produce a second flush of blooms later in the summer. With the right care, you can encourage your plant to flower again and enjoy colour well into early autumn.
Here’s how to give your clematis the best chance of putting on another show.
1. Know Which Type of Clematis You Have
Not every clematis flowers twice.
Many large-flowered hybrids, including popular varieties such as ‘Nelly Moser’ and ‘The President’, often produce a second, lighter flush after the main display. In contrast, some spring-flowering species bloom only once each year.
If your clematis is capable of repeat flowering, a little care now can make a noticeable difference.
2. Deadhead Spent Flowers
Once the first flush has finished, remove faded flowers before they begin producing seed.
Cut each flower stem back to a pair of healthy leaves beneath the spent bloom. This encourages the plant to focus its energy on producing fresh shoots and flower buds rather than seeds.
It’s a simple job that only takes a few minutes.
3. Water Deeply During Dry Weather
Clematis prefer cool, moist soil, especially while they’re producing flowers.
During prolonged dry spells, water deeply around the base of the plant rather than giving frequent light sprinklings. This encourages the roots to grow deeper into the soil where moisture lasts longer.
A stressed plant is far less likely to produce another flush of blooms.
4. Feed After the First Flush
Producing large flowers uses a lot of energy.
Once the first display has faded, apply a balanced fertiliser or one designed for flowering plants according to the manufacturer’s instructions. This supports healthy new growth and helps fuel another round of flowering.
Avoid overfeeding with high-nitrogen fertilisers, as these encourage leafy growth at the expense of flowers.
5. Keep the Roots Cool
There’s a well-known gardening saying about clematis: heads in the sun, feet in the shade.
While the stems and flowers enjoy sunshine, the roots prefer cooler conditions.
A layer of mulch or nearby low-growing perennials can help shade the soil, reducing moisture loss during hot weather and creating better growing conditions.
6. Don’t Prune Too Hard
If you’re hoping for another flush of flowers, resist the temptation to cut the plant back heavily.
Summer pruning should usually be limited to removing faded flowers, damaged stems or obviously dead growth. Major pruning is best carried out at the appropriate time for your clematis pruning group.
Keeping healthy stems intact gives the plant the best chance of producing more blooms.
7. Be Patient—The Second Flush Is Usually Smaller
Even with perfect care, the second display is usually lighter than the first.
That’s completely normal.
Instead of hundreds of flowers appearing all at once, you’ll often enjoy a steady succession of fresh blooms through late summer and into early autumn. Combined with healthy foliage, this still creates a beautiful display.
A Quick Clematis Care Checklist
If you’d like your clematis to flower again this summer:
- Check whether your variety naturally repeat flowers.
- Deadhead faded blooms promptly.
- Water deeply during dry spells.
- Feed after the first flush with a suitable flowering fertiliser.
- Keep the roots cool with mulch or neighbouring plants.
- Avoid heavy summer pruning.
- Be patient while new buds develop.
These simple steps give repeat-flowering varieties the best chance of blooming again.
Final Thoughts
If your clematis has stopped flowering, don’t assume its season is over. Many popular varieties are capable of producing a beautiful second flush, provided they’re kept healthy during the summer.
A little deadheading, consistent watering and the right feeding routine can make all the difference. With a bit of patience, your climber could reward you with another colourful display just when many other plants are beginning to fade.
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