Just bought some bedding plugs from Aldi - petunias, geraniums, etc. and will be potting them on today. Will I be able to move them soon from the house into an unheated greenhouse bearing in mind that we live in a mild part of Wales.
these plants ain't known for frost - hardiness!! if your greenhouse maintains anything above freezing you will be o.k. (if it is forcast a hard frost you could always bring 'em back indoors for the night) ;)
Yes if you can guarantee a minimum temperature of around 40°F (4°C)
If it gets any colder they will want some protection, then you would have to consider fetching them back indoors.
By the way I would give them a few days in relative warmth after potting up to get them going.
If it is too cold ( even 40° is too low at this stage) they will stop growing which is the last thing you want at this stage.
And take it easy with the watering!!!
They don't need much at this stage particularly geraniums.
My greenhouse isnt heated either- I am defo keeping mine indoors a bit longer, spareroom is fast turning into mini garden centre ::)
Am going to chance potting up the plugs and putting them in the greenhouse and cover them with fleece / bubble wrap overnight :)