Cauliflowers are grown for their central white heads (curds) and can be grown all year round as long as the correct variety for the time of year is chosen. Cauliflowers take up quite a bit of space so don't grow them if your vegetable patch needs high yield per square foot.
Cucumbers are straight forward to grow and grow up they will as they are a climbing vine. They are a member of the cucurbitaceae family which includes melons and squashes and as such like a warm well drained soil.
Lettuces can be grown in a wide number of areas in the garden, in containers, the vegetable patch or raised beds. Today there are lettuces of many sizes, colours, flavours, textures exhibiting various growth requirements
When growing tomatoes Germination should take around 7-10 days and once the seedlings have emerged thin out the weaker of the seedlings and then you can prick out the strongest seedling into its own 7.5 cm pot filled with compost.