Q.Unheated Greenhouse Question
I have young Spider and Strawberry plants in my unheated greenhouse. Should I store these at ground level or on a shelf higher up ?. The area the greenhouse is situated is not too exposed. Regards, Ron Robinson

Certified GKH Gardening Expert
Your spider plant will appreciate the warmest are of the greenhouse. This will do best with as little exposure to the cold as possible. The ground will be the best place, as the airflow around the table may cause a cooling effect.
The Strawberry will survive with no protection in your area. Here, in the US, the strawberry is native to regions that will get much, much colder than what you see in your area. They benefit from quite a bit of air circulation, so a table would be perfect for Winter storage. Maintain a slight soil moisture with dry periods in between. Wet soils can cause problems for a strawberry over Winter.
This article will help you with Strawberry care:
https://www.gardeningknowhow.com/edible/fruits/strawberry/container-grown-strawberries.htm
This article will help you to care for Spider Plants: