This is what my Cucumber Telegraph and Crystal Lemon Cucumber look like just 7 days after planting them.
To germinate these cucumber seeds, I planted just one seed per small pot in a general seed compost. Each seed was placed ¼ inch deep, against the edge of the pot.
The compost was moistened by placing the pots in a tray of water for 5-10 mins.
The pots were then put in a heated propogator in the greenhouse. The propogator was set at 20 degrees. Light was not excluded.