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Cornflower 'Blue Carpet'

Centaurea cyanus

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Blue Carpet is a variety of Cornflower which is a member of the Centaurea family. Its botanical name is Centaurea cyanus 'Blue Carpet'. Blue Carpet is a (open pollinated) variety.

A lower growing Cornflower than those often thought of, this plant is described as a hardy annual/perennial. Regular bright blue blooms, silver-grey foliage, a low grower, making it a good choice for pots, as well as borders and edgings.


Cornflower is excellent for attracting beneficial insects.

This variety is an Flower that typically grows as an Annual/Perennial, which is defined as a plant that can matures and completes its lifecycle over the course of one year or more. Blue Carpet normally grows to a mature height of 90.0 cm (that's 2.93 feet imperial). This variety tends to bloom in mid summer.

Blue Carpet Cornflower is normally quite a low maintenance plant and is normally very easy to grow - great for beginner gardeners!

This variety plant info is provided by the myfolia gardener's wiki. All details about Blue Carpet have been kindly provided by our members.

How to grow Blue Carpet

  • Partial Sun

  • Medium

Try to plant in a location that enjoys partial sun and remember to water moderately. Blue Carpet is generally regarded as a half hardy plant, so it will need protecting in periods of cold weather. The USDA Hardiness Zones typically associated with Blue Carpet are Zone 6 and Zone 11.

Growing Blue Carpet from seed

This seed benefits from cold stratification, or can be winter sown.

Aim to sow 0.23 inches (0.6 cm) deep and try to ensure a gap of at least 0.98 inches (2.5 cm).

By our calculations, you should look at sowing Blue Carpet about 7 days after your last frost date.

Transplanting Blue Carpet

Blue Carpet is half hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.

By our calculations, you should look at planting out Blue Carpet about 7 days after your last frost date.

Harvesting Blue Carpet