Getting it to bloom

Why won't my Clematis 'Nelly Moser' bloom? (and how to make it flower)

Also called Nelly Moser clematis, striped clematis (Clematis 'Nelly Moser').

More about clematis 'nelly moser'

About Clematis 'Nelly Moser'

Clematis 'Nelly Moser' · also called Nelly Moser clematis, striped clematis · flowering

Clematis 'Nelly Moser' is a much-loved large-flowered climber bearing pale mauve-pink blooms each striped with a deeper carmine bar, up to 18 cm across, in early summer with a lighter rebloom in late summer. The flowers fade in strong sun, so it is best in part shade. A reliable Group 2 clematis needing only light spring pruning.

Plant type: flowering

Watch for — Clematis wilt: Large-flowered clematis can suddenly collapse from a fungal wilt. Plant deep (bury the crown 5-8 cm below soil level) so it can regrow, cut out affected stems to healthy tissue, and keep plants well watered and fed.

The reasons clematis 'nelly moser' isn't blooming

Almost every non-blooming clematis 'nelly moser' 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 clematis 'nelly moser' 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 clematis 'nelly moser' to flower

Maximise sun. Give clematis 'nelly moser' 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 clematis 'nelly moser' and get the feeding right with the clematis 'nelly moser' 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

Clematis 'Nelly Moser' 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 clematis 'nelly moser' care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Clematis 'Nelly Moser' blooming — frequently asked questions

Why won't my clematis 'nelly moser' flower?

Clematis 'Nelly Moser' 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 clematis 'nelly moser' bloom?

Give clematis 'nelly moser' 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 clematis 'nelly moser' normally bloom?