Late Sweetcorn

I didn't sow them till late June last year and still got a reasonable crop. They weren't in a prop they were just on the garden table. (obviously in pots with compost )

No need for a heated prop in this weather.

Sow an "early" (that means early maturing, ie quick) if your season is on the short side

Do you have any varieties in mind that are early, Two Sheds - I've not noticed that written on the packets of seeds before now.

I've nicked this info from gardencentre.org for you:

F1 varieties have made it possible to grow sweet corn in cooler areas of the UK.
There are early-, midseason- and late-maturing types – the late-maturing are taller and the cobs are often larger than early-maturing varieties, but always choose an early-maturing type if conditions are less than ideal.

John Innes Hybrid: First choice for many gardeners – early, reliable and vigorous with medium-sized cobs.
Early Xtra Sweet: A little later, but very popular because the grains have at least twice as much sugar as standard varieties. The cobs are large but there is a precaution – do not grow near any other variety as cross pollination spoils the flavour.
First of All: One of the very early ones – highly recommended for table and exhibition, especially in areas north of the Midlands. The medium-sized cobs are about 6in (15cm) long.
Earliking: Medium height with large cobs. An early variety with a good reputation for sweetness – a popular choice, especially in northern areas.
Early Arctic: A new one, claimed by the suppliers to crop 7 days before Earliking.
North Star: The cobs are large, and most experts recommend this one for maximum reliability in northern districts and in cold and wet summers.
Polar Vee: Another variety which is recommended for northern growers. Alternatively you can choose Northern Belle for the less-favoured areas.
Kandy Kob: Like Early Xtra Sweet, an early variety with an abnormally high sugar content.
Tokay Sugar: An odd one – as early and almost as sweet as Early Xtra Sweet but the kernels are pure white.
Kelvedon Sweetheart: A new variety which is claimed to be an improvement on Earliking.
Kelvedon Glory: The most popular of the midseason varieties. A heavy cropper, producing well-filled 7-8in (17-20cm) the kernels are pale yellow. Recommended for its flavour.
Sundance: A midseason variety which is claimed to be an improvement on the better-known Kelvedon Glory.

Right - when this cat lets me get up I'm off to the garden centre! I sowed my favourite Incredible but I'm down to about 20 plants after damping off and slugs slicing through them.

I only have four plant left, i wonder if i shuld by some plants.

It may be a good idea Greasyfire - you need to grow them in a block to cross pollinate well.

I don't know if this link is of any use, but it refers to a sweetcorn called Sugar Buns which they advise as being the earliest of all the corn varieties

Seeds, Herbs and Bedding Plants from Kings Seeds  mmmm