SOWING AND GROWING (Planting seeds directly into the garden) 1  Cucumbers love high humidity and warmth up to 95°F.  Both vine and bush varieties produce best yields when the plants have supports to climb.
http://www.onthegreenfarms.com/fruit-vegetable/how-to-grow-cucumbers/
1 Cucumbers germinate in soil temperature as low as 60°F, however, seeds tend to rot in the ground if temperatures remain too low.  The ideal temperature for growing cucumbers is 85°-95°F; at this temperature, cucumbers take just 3 days to germinate.
http://www.onthegreenfarms.com/fruit-vegetable/how-to-grow-cucumbers/
1 The ideal temperature for growing cucumbers is 85°-95°F; at this temperature, cucumbers take just 3 days to germinate.  Cucumbers seeds should last 5 years from your purchase date if stored in a cool, dry place.
http://www.onthegreenfarms.com/fruit-vegetable/how-to-grow-cucumbers/
How to grow cucumbers in a greenhouse. Greenhouse types can be planted in a warm, humid greenhouse that is kept at a temperature of at least 15c (60F). Plant greenhouse cucumbers at a spacing of 2 plants per grow bag or 45cm (18) apart.
http://www.thompson-morgan.com/how-to-grow-cucumbers
In hoop houses. or high tunnels, the cucumbers can be grown directly. in the ground in the available field soil amended with. compost. In greenhouses, cucumbers are often grown in. containers or hydroponic systems.
http://www.uaf.edu/files/ces/publications-db/catalog/anr/HGA-00434.pdf
These cucumbers have smooth, thin skins with. longitudinal ridges. The length of the cucumbers varies. from 12 to 24 inches at harvest. The eating quality is good. but the tender skin causes them to quickly dehydrate. Therefore they are often found shrink-wrapped in plastic. film when sold in stores.
http://www.uaf.edu/files/ces/publications-db/catalog/anr/HGA-00434.pdf
1 Plant your sprouted cucumber seeds outdoors when the soil temperature is 70°F or higher during the day.  Planting and growing cucumbers later when its warmer will make better-performing plants than earlier plantings, eventually passing them up in growth.
http://www.onthegreenfarms.com/fruit-vegetable/how-to-grow-cucumbers/
Sow cucumber seed on their sides at a depth of 1cm (½) in 7.5cm (3) pots of free-draining, seed sowing compost. Place the pots in a propagator or seal them inside a plastic bag at a temperature of 20C (68F) until they germinate. This usually only takes 7-10 days.
http://www.thompson-morgan.com/how-to-grow-cucumbers
You can normally begin to harvest cucumbers around 12 weeks from sowing. Harvesting cucumbers is best done early in the morning when temperatures remain cool. Cut the fruits from the plant using secateurs or a sharp knife.
http://www.thompson-morgan.com/how-to-grow-cucumbers
1 When planting in a row, sow seeds 18” apart; mound the soil to make raised rows. This will provide extra warmth for your plants, helping your cucumbers to grow more rapidly.  When planting cucumbers in hills, create your hills 3’ in diameter with 4-5’ spacing between the center of each hill.
http://www.onthegreenfarms.com/fruit-vegetable/how-to-grow-cucumbers/
germination temperature for cucumbers
The germination temperature for cucumber is 85° to 95°F. The germination temperature for a cucumber is 85° to 95°F.