Cosmos Sensation Dazzler
Cosmos bipinnatus 'Sensation Dazzler'
Intense crimson-magenta single Cosmos with velvety texture on tall 120–150cm stems — the boldest jewel-toned variety in the Sensation series.
About this variety
A deep saturated crimson-magenta with a velvet surface, on flowers 8 to 10cm across. It is neither pink nor red but sits in between, and it is far and away the boldest thing in the cosmos range.
It is also the tallest, at 120 to 150cm, which makes it useful as a seasonal screen in front of a fence or anything else you would rather not look at. That height needs managing. Staking or netting goes in early, before the plants need it, because a cosmos this tall that goes over in an August storm does not stand back up.
The colour will not compromise. Put it in a soft pastel scheme and it takes the scheme over; put it with white, lime green or deep gold and it is electric. Vase life runs seven to ten days from stems cut as the buds crack open. It belongs to the Sensation series, bred for cutting, so the stems are strong and the flowers large. Lean ground, full sun, and no feeding.
Plant alongside
Cosmos Sensation Dazzler pairs beautifully with these cottage garden classics
RHS Plants for Pollinators
This plant has been assessed by the Royal Horticultural Society and recommended as especially beneficial to bees, butterflies and other pollinators. Growing plants like this directly supports UK pollinator populations — something close to our hearts at Salle Moor Hall Farm, where we see the difference a cottage garden full of the right plants can make.
Learn more at RHS.org.uk →
RHS Award of Garden Merit
The RHS Award of Garden Merit is given to plants of outstanding excellence for ordinary garden use. To earn this award a plant must be of good constitution, available to the gardening public, and perform reliably across a range of UK growing conditions. It is one of the most trusted plant recommendations in British gardening and a genuine mark of quality.
Learn more at RHS.org.uk →