To grow from seed, fill a 7 to 8 cm pot with seed compost, then use a dibber to create a small 2 cm planting hole. Plant two seeds in the hole. Place them on their sides. Cover in with compost and water. Ideally use a propagator as a source of even temperatures; otherwise, a windowsill or the top of the fridge will still aid germination. Keep the soil moist and use a stick or cane to give support. In 6 to 7 days the seeds should germinate – remove the smaller of the two seedlings.
To plant out, indoor varieties should be planted two to a growing bag in late May (for unheated greenhouses) or as early as March if you have a heated greenhouse. As cucumbers are very sensitive to frost, outdoor varieties should not be planted out until early summer. Acclimatise the plants in the run up to planting out by using a cold frame, or a shaded location covered with protective fleece. Pre-dig holes with organic matter, 30 cm deep by 45 cm wide. Mound each hole and plant 2-3 plug plants on each. Provide with a frame and train the plants to it; alternatively, allow the plants to trail across the ground. Water regularly and feed with tomato fertiliser.
Pinch out growing tips to encourage side branches to grow, increasing the number of fruits the plant will produce. Keep the soil moist, and use a high-potash fertiliser fortnightly during the fruiting period.