How hardy are my plugs?
By Sazzer
United Kingdom 
I have just bought small plug plants - verbena bonariensis and nemesia. Is it okay to plant them straight out into the garden, or should they be potted up for a bit to grow stronger? I did that with the last lot and the snow killed them off!
P.S. I live in Edinburgh.
Thank you for the helpful reply! Sound advice. I'm sure.
18 Apr, 2013
Answers
definitely keep them under cover till there are no more frosts.
18 Apr, 2013
Gosh no do not plant out follow advice above... You are still going to get frosts which will kill any plug plant!
18 Apr, 2013
Sound advice above, but I would plant up individually into 3" pots if you have the room. It's a lot easier to water and look after single pots and the plant will create a strong root system.
19 Apr, 2013
If you can keep them in a greenhouse in the 3" pots then begin to harden them off mid may you should be fine
Whats the old saying
"ne're cast a clout 'til may be out"
Blossom or month.......
19 Apr, 2013
I suggested the small cells, as plug plants come in large numbers, and space for 100 x 3" pots is hard to come by.
19 Apr, 2013
Put them into those trays of cells, about 1 inch or 1 1/2 inch and get them going under cover , to risky to plant out anything as small as plug plants.
18 Apr, 2013