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CLOSING DOWN SALE - UK Delivery £1.26

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Cornflower Seeds - Mixed

Botanical - Centaurea cyanus


Seed Count:
160 Seeds
Usually despatched within 24 hours
99p, FREE over £15.99
Price £2.58 £1.81 (You save £0.77)

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160 Seeds.

Other Names - Blue-Bottle, Double Cornflower, Bachelors Button…

Cornflower Mixed is a superb mix of tall growing crown double strain varieties. The stems are long and straight and the variety comes in a good range of shades from white, pink and bright blue. This prolific plant is an excellent variety for drying and for cutting.

  • Produces a wide range of attractive shades.
  • Long flowering season.
  • Loved by bees and other beneficial pollinators.

Suitable For - Bedding plants, flowers for cutting, flowers for drying, cottage gardens, wildlife gardens, borders, containers

Sowing Months - March - May, August - September

Flowering Months - June - September

Soil Preperation

To help with moisture retention and fertility add a good amount of well rotted manure or compost to the soil. If the soil is a heavy clay add some gritty sand to help with drainage. Remove weeds from the area.

General Information
Habit Annual Soil type Well drained, moisture retentive soil
Type Crown Double Strain Distance between plants 15 - 20 cm
Position Full sun Sowing depth 3 mm
Average height 50 - 100 cm Germination Temperature 18 to 22℃
Average spread 15 - 20 cm Days to germination 14 - 21 days
Hardiness Hardy down to -5 RHS Bee friendly Yes
Soil Ph   RHS Award winner No

Sowing Guide

Early Sowing/Module Sowing

Autumn sowings will produce early flowers the following year and should be sown undercover.
Cornflower dislike their roots being disturbed, for this reason it is advisable to sow the seeds in biodegradable pots.
Sow the seeds on the surface of damp compost. Lightly cover with a thin layer of compost or vermiculite.
Place the containers in a propagator or if preferred a clear plastic bag and seal. Do not exclude light as this will help germination.
Once the seeds start to germinate remove from the propagator or bag and place in a well lit area with a reduced temperature. Protect from frost and exposure to hot sun at this point.
Thin to 1 strong seedling. Grow on in frost free conditions and plant out when all risk of frost has passed.
Autumn sown cornflowers should be left to overwinter in a frost free greenhouse or cold frame until the following spring. Do not allow the compost to dry out however avoid overwatering.
Before planting out harden off over 7 - 10 days to reduce the chances of shock.

Direct Sowing

Sow direct in March - May where the plants are to grow in rows 25 - 30 cm apart. The seed bed should be well prepared and the soil should be a fine tilth.
When the seedlings are large enough to handle thin out to 25 - 30 cm apart.

Growing On

Water the plants regularly until established.
Avoid over fertilizing the cornflowers as this can lead to less flower production and more leaf growth.
Water established plants regularly during dry weather.


Dead-head spent flowers to encourage more blooms to grow.

Delivery Information

All products on this website are for delivery to the UK only.

(Including Northern Ireland, the Highlands & Islands, Scilly Isles, Channel Isles and the Isle of Man). Delivery charges to these areas are the same as UK mainland stated below (with no additional surcharge). Delivery however may take longer than the times stated due to weather, distance etc.)

FREE DELIVERY on all orders over £9.98

When applicable, free 2nd class delivery will be automatically calculated at checkout.

STANDARD DELIVERY - Royal Mail 2nd Class (3 - 5 working days) - £0.95

For orders under £9.98, the "Standard Delivery" charge will be added automatically at checkout.

FAST DELIVERY - Royal Mail 1st Class (1 - 2 working days) - £1.52

If preferred please select this delivery option at checkout.

For further information please visit our Delivery, Postage & Packaging page.

Returns & Refunds

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The 14 day cooling off period.

Under the 'Consumer Contract Regulation Act' you the consumer have the right to cancel a long distance order (such as a website order) at any time from the moment the order is placed up until 14 calendar days from the day after the goods are received.

So if for whatever reason you change your mind within this time and wish to return the goods, simply send us a 'Cancelation Form' (full details can be found on our Your Right to Cancel page). On receiving the undamaged goods back from you we will fully reimburse you with all payments received including the cost of standard delivery. You will however need to bear the cost of returning the goods back to us.

For full details please visit our Your Right to Cancel page.

Damaged, Incorrect or Missing Goods.

We want you to be 100% delighted with your purchase.

If however you receive goods that have been damaged, incorrect or missing, let us know within 72 hours of receiving the goods and we will either fully refund you (including postage costs), promptly send you a replacement or credit your Groseeds account, depending on your preference.

For full details, including how to contact us, please visit our Returns & Refunds page.

Faulty Goods.

We guarantee to supply you with the finest quality seeds in prime condition.

All products sold by Groseeds come with a 365 Days 100% Satisfaction Guarantee (from the date of purchase). For further information please visit our 12 Month Guarantee page.

If however within the 12 months you find the goods to be faulty please contact us ASAP so that we can resolve the issue promptly. Full instructions, including how to contact us can be found on our Returns & Refunds page.

We want you to be 100% satisfied with your purchase. Any issues will be dealt with promptly, courteously and efficiently.