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Several clematis varieties flower twice a year, offering two spectacular bloom cycles in a single growing season.
These special cultivars are known as reblooming clematis because they give you a main flush of flowers in late spring or early summer and then reward you with a second show in late summer or early fall.
If you’ve been wondering what clematis flowers twice a year so you can plan a garden with extended color, you’re in the right place.
In this post, we’ll explore the best reblooming clematis types, why they bloom twice, and how to care for them so you get those repeat performances.
Let’s dig into the world of clematis that flowers twice a year and find your perfect vine.
What Clematis Flowers Twice a Year: The Top Reblooming Varieties
The question of what clematis flowers twice a year has a straightforward answer: most large-flowered hybrids and certain viticella cultivars are bred specifically for repeat blooming.
These clematis that flower twice a year typically belong to pruning group 2, meaning they bloom on old wood in early summer and then on new growth in late summer.
Here are the standout choices when you’re asking what clematis flowers twice a year in your garden.
1. Clematis ‘Nelly Moser’
‘Nelly Moser’ is one of the most celebrated clematis that flowers twice a year, with huge, pale pink blooms striped by deeper magenta bars.
This reliable rebloomer gives you a heavy first wave in May and June, then a lighter but still lovely second flush in August and September.
It’s a perfect answer to what clematis flowers twice a year if you love soft, romantic colors and a vigorous climbing habit.
Just give it afternoon shade in hot climates, as the flowers can fade in intense sun.
2. Clematis ‘The President’
When gardeners ask what clematis flowers twice a year, ‘The President’ almost always tops the list because it’s incredibly dependable.
This variety produces rich, velvety purple-blue blooms with a deep red center, appearing in early summer and again in early autumn.
It’s a vigorous grower that works well on trellises, fences, or even scrambling through shrubs.
‘The President’ is a classic example of clematis that flowers twice a year without needing fussy care.
3. Clematis ‘Multi Blue’
‘Multi Blue’ answers what clematis flowers twice a year with striking, double, deep blue flowers that look like tiny pom-poms.
The first bloom wave in early summer features fully double petals, while the second wave in late summer may show semi-double or single flowers.
This variety is compact enough for containers, making it a great choice if you’re limited on space but still want clematis that flowers twice a year.
Its unusual flower form adds texture and intrigue to any vertical garden.
4. Clematis ‘Jackmanii’
‘Jackmanii’ is a legendary variety that many people mention when discussing what clematis flowers twice a year, though it’s technically a late bloomer.
It produces masses of deep purple, velvety flowers from mid-summer through early fall, and with a hard prune, it can give a second burst in cooler climates.
Some gardeners treat it as clematis that flowers twice a year, but it’s more accurate to say it blooms continuously over a long season.
Still, if you want reliable color and a vigorous climber, ‘Jackmanii’ won’t disappoint.
5. Clematis ‘Piilu’
‘Piilu’ is a smaller, charming variety that’s a fantastic answer to what clematis flowers twice a year for patios and small gardens.
Its pale lavender-pink flowers have deeper pink bars and golden stamens, blooming heavily in late spring and then again in late summer.
This reblooming clematis grows only about six feet tall, so it’s perfect for a balcony pot or a short obelisk.
‘Piilu’ proves that clematis that flowers twice a year can fit into tight spaces beautifully.
Why Do Some Clematis Flower Twice a Year?
Understanding why certain clematis flower twice a year comes down to their growth habit and pruning group.
Most reblooming clematis belong to pruning group 2, which blooms on both old and new wood.
The first flush emerges from buds formed the previous year, known as old wood, and this gives you that early summer spectacle.
After the first bloom fades, the plant produces new shoots, and these generate the second wave of flowers in late summer.
This dual blooming mechanism is why clematis that flowers twice a year behaves differently than single-bloom varieties.
Another reason has to do with day length and temperature.
Many clematis that flower twice a year respond to longer days by setting buds on new growth, so a warm spell in late summer triggers that encore performance.
The Role of Pruning in Repeat Blooms
The way you prune clematis that flowers twice a year directly affects whether you’ll see that second round of blossoms.
For these group 2 rebloomers, a light prune in late winter or early spring is ideal.
Simply remove dead or weak stems and cut back healthy shoots to the top pair of plump buds.
Avoid hard pruning, as that removes the old wood that produces the first bloom wave.
After the first flush fades and you’re thinking about what clematis flowers twice a year, deadhead the spent flowers to encourage a stronger second show.
How to Care for Clematis That Flowers Twice a Year
Getting the most from clematis that flower twice a year requires a few simple but essential care practices.
These vines thrive when their roots stay cool and shaded, even as their tops reach for full sun.
Plant a low-growing perennial or mulch heavily around the base to protect roots from heat.
Water deeply and consistently, especially during dry spells, because reblooming takes extra energy.
Feed your clematis that flowers twice a year with a balanced fertilizer in early spring and again after the first bloom cycle.
This second feeding helps fuel the late-summer flower production you’re hoping for.
Sunlight Requirements for Repeat Blooming
Most clematis that flower twice a year prefer at least six hours of direct sunlight daily.
However, in hotter regions, morning sun with afternoon shade helps prevent flower fading and extends bloom life.
The ideal spot gives the vine’s leaves plenty of light while keeping roots in cool, moist soil.
If you’re still wondering what clematis flowers twice a year in partial shade, consider ‘Nelly Moser’ or ‘Piilu,’ as both tolerate less sun.
Soil and Watering Tips
Clematis that flower twice a year love rich, well-draining soil with a neutral to slightly alkaline pH.
Amend planting holes with compost to give roots a strong start, and avoid waterlogged areas that can cause rot.
Mulching with bark or straw keeps soil moisture even, which reduces stress on these repeat bloomers.
A consistent watering schedule is key, as clematis that flowers twice a year will drop buds if the soil dries out completely.
Check the top few inches of soil and water when they feel dry to the touch.
Common Mistakes That Prevent a Second Bloom
Even with the right varieties, several missteps can stop clematis that flowers twice a year from giving you that second performance.
One big error is pruning too hard, which strips away the old wood needed for the spring bloom and disrupts the cycle.
Another mistake is skipping the deadheading after the first flush, leaving spent blooms to form seeds instead of new buds.
Underwatering during the hottest months also stresses the vine, causing it to skip the late-summer bloom.
Finally, planting in too much shade can reduce energy reserves, so you may get only one weak bloom wave.
Avoid these traps, and you’ll enjoy clematis that flowers twice a year as intended.
So, What Clematis Flowers Twice a Year?
Several clematis varieties flower twice a year, including ‘Nelly Moser,’ ‘The President,’ ‘Multi Blue,’ and ‘Piilu.’
These reblooming clematis give you that gorgeous first wave in early summer and a reliable encore in late summer or early fall.
With proper planting, light pruning, and consistent care, you can enjoy two distinct bloom seasons from a single vine.
So if you’ve been asking what clematis flowers twice a year, pick one of these dependable cultivars and get ready for double the color.
Your garden will thank you for choosing clematis that flowers twice a year, and you’ll love the extended show.
Happy planting, and enjoy every single petal of your reblooming clematis!