Getting it to bloom

Why won't my Virgin's Bower bloom? (and how to make it flower)

Also called Devil's Darning Needles, Woodbine, Wild Clematis, Leather Flower (Clematis virginiana).

More about virgin's bower

About Virgin's Bower

Clematis virginiana · also called Devil's Darning Needles, Woodbine · flowering

Clematis virginiana is a vigorous native North American deciduous climber, producing clouds of small creamy-white four-petalled flowers in late summer, followed by decorative feathery seed heads that persist into winter. Excellent for wildlife gardens; it attracts pollinators and provides nest material for birds. All parts are toxic to pets and should not be ingested.

Plant type: flowering

Watch for — Invasive self-seeding: Spreads aggressively in disturbed habitats; deadhead spent flowers to prevent excessive self-seeding in garden settings.

The reasons virgin's bower isn't blooming

Almost every non-blooming virgin's bower 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 virgin's bower 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 virgin's bower to flower

Maximise sun. Give virgin's bower 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 virgin's bower and get the feeding right with the virgin's bower 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

Virgin's Bower 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 virgin's bower care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Virgin's Bower blooming — frequently asked questions

Why won't my virgin's bower flower?

Virgin's Bower 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 virgin's bower bloom?

Give virgin's bower 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 virgin's bower normally bloom?