Low success rate re:seed germination indoors
Would desperately love some help! Sorry for long post....
Every year i attempt to germinate a varied range of flower seedlings indoors for garden in summer. Sadly,I only have 20% success rate :(
This year i'm trying Convulvulus, Mirabilis,Large Poppy red, Agrostemma, Cornflower,Sunflower Claret F1 Hybrid,Morning glory bi pink-purple and Californian poppy red.
I follow the instructions e.g cover with polythene&keep moist. I use a normal seedling compost. I MAY be going wrong with the temperature, because i just keep them in my room, which is fairly warm for say 6 hours but cold at night.
In the past the seedlings have appeared&then wilt in 7 days!
Not sure what i'm doing wrong? Do i need to keep them at the exact temp consistently as directed on packet? I guess i'll need a heated room/ I could not afford that.
Secondly, some e.g cornflower need planting straight into the ground. Is it possible to propagate these in a tray outdoors, as most flowers in UK don't appear till mid June, so the garden would be bare till then.I want to use the ground for something else colorful& then transplant the above seedlings in June.
I would love and appreciate any tips.