Winter greenhouse pots.

harmonyhiveirjADIxc

I have my first plastic greenhouse. My hardy annual plugs are growing quickly but I think too small to put out. Can I winter them in biodegradable pots or plastic better? Some mould showing on biodegrade but I think I have them too wet atm. 

Fairygirl

It's important not to have tiny plants too wet over winter. 
Small plastic pots would be better as they don't hold water so readily.

You certainly can't plant out annuals just now. Are you not in the UK? 

harmonyhiveirjADIxc

These are hardy bought as plugs. All healthy and growing quickly atm. 

Fairygirl

Yes - but if they're annuals, and just small plants, they can't be planted outside until next year. 
Unless I'm completely misunderstanding 

granma

What plants are they?

Did any instructions come with the plugs?

I plant out primrose and pansy at this time of year even small ones survive .  They don't grow much until spring , then they grow quick.

Fairygirl

They aren't hardy annuals though - they're perennials. 
They can be short lived in many circumstances, but they aren't annuals.

harmonyhiveirjADIxc

Echinacea, nepeta, delphinium, dianthus, verbena, gaillardia. Will keep them under cover until the spring. I’m south coast, south facing and sheltered. 

Fairygirl

Delphiniums, echinacea and nepeta are perennial, as are most dianthus, so again - it depends what those are. There are annual and perennial verbenas too. 
Small plants are very vulnerable, even  in mild conditions.

Unless those mentioned are perennials, and  bursting out of three or four inch pots, I'd wait. 

harmonyhiveirjADIxc

Thank you for your help