By Joycee
Essex,
United Kingdom 
I am way ahead of my self. this year after seed growing time, and an empty greenhouse, thought it nice to have colour, so grew variety of coloured Geraniums which have done really well, remembering to give plenty of ventilation. next year would like to grow some thing else which would acclimatize to greenhouse conditions, any suggestions please.
2 Oct, 2014
If you're talking about seasonal (summer) pot plants, there's loads of choices from seeds or bulbs. Celosia, begonias, Gloxinias, Exacum, Browallia, Coleus plus lots more.
There are plants such as Calceolaria, Cineraria and Cyclamen which can be grown cool for late autum flowering, but they will need frost protection.
2 Oct, 2014