Cornflower 'Jubilee Gem' (150)

A fantastic bedding variety with large, double deep blue flowers aloft compact bushy plants. Makes a striking low hedge, easy to grow direct into the soil. Also makes a delightful feature for patio containers.

Sow cornflower seeds outdoors where they are to grow from March to April. Choose a position in full sun on well drained soil which has been raked to a fine tilth. Sow seeds thinly, at a depth of 3mm (1/8") in drills spaced 30cm (12") apart. Water the ground regularly, especially during dry periods. Germination usually takes 14-21days. When cornflower seedlings are large enough to handle, thin them out to 15cm (6") apart.

Alternatively, grow cornflowers indoors from August to September for early summer flowering next year. Sow cornflowers on the surface of a good quality seed compost at a temperature of 18-23C (65-73F) and cover with a very fine sprinkling of compost or vermiculite. Do not exclude light as this helps germination. When seedlings are large enough to handle, transplant and grow them on in cooler conditions until large enough to move outdoors. Overwinter cornflowers plants in cool, light, frost-free conditions before planting out the following spring, or growing on as greenhouse pot plants.

• Can be grown in any well-drained soil in full sun.
• Height: 40cm
• Spread: 30cm

Most of our products are now available for delivery nationwide, up to 30kg, via courier service. Exceptions include bulk items such as tonne bags, mature trees and furniture, which we can only deliver within the local area by arrangement (see below for estimated delivery charges for these items).

Our standard delivery charge for items ordered online is €9.95 for any order up to 30kg, regardless of the number of items included. Should your order exceed 30kg, we may contact you to arrange for a surcharge to cover the delivery costs. Please also note that whilst we may take orders from many different countries, we can only arrange delivery within the Republic of Ireland.

If you wish to order seeds only, our standard postage fee is €3.80 regardless of the number of seed packets you order.

There is currently no postage fee for the the purchase of Gift Tokens.

For orders received by 2pm, we will endeavour to ship these within 3 to 5 working days. Please ensure that you remove all plant items from their packaging immediately upon arrival and water if necessary as we cannot be responsible for damage caused to plant health if they have been left packaged beyond their delivery date.

For all "Click 'n' Collect" orders made before 2pm, please allow at least 24 hours before collection. There may be occasion where we have to transport stock from one garden centre to another for example, which may cause some delay. In such circumstances you will be notified by email. Please check your emails before setting off to collect your order. 

We would also add that, despite our best intentions a plant may not be looking its best and in such cases we will suggest substitutes or organise a refund. 

Please click on the the following to review our Returns Policy and Terms of Use.

For bulk items including tonne bags, mature trees and furniture, these must be made by arrangement by contacting [email protected] or calling 071 966 7091. For full details of our delivery charges including approximate fees for local delivery of bulk items please click here >>>

If you are looking for more information about this product or wish to see our full range, please visit one of our stores in Boyle or Roscommon
Town, where our friendly, qualified staff are always available to give advise and answer any questions you may have. 

Our Stores:

Ardcarne Garden Centre - Boyle
Ardcarne Garden Centre
F52 RY61 Boyle

Ardcarne Garden Centre - Roscommon Town
Ardcarne Garden Centre
F42 HW99 Lanesboro Road

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For full details of our locations including maps, please visit our Location pages.

Since the first seed catalogue was published in 1855, Thompson & Morgan has grown to become the UK's largest Mail Order Seed and Plant company.

"Our product range has also expanded to include an award winning seed range, young plants, bulbs, seed potatoes, onions and garlic sets, soft fruit and fruit trees as well as an extensive range of gardening supplies. All have been carefully selected through stringent testing and trials to make gardening a pleasure and a success for our customers." - Thompson & Morgan