Stocks >>When to plant out??

Bought a tray of stocks, but not sure whether to keep them in cold frame for a while longer, before planting into flower bed. What would you do?? As bound to have a few frosty nights ahead.

Found this<<Plant in the early fall in climates with a milder winter, for bloom in winter or early spring. Stock will withstand moderate frost, but will not set bloom if temperatures too cold at night.>>

 

I think you'd be wise to keep them in the cold frame a bit longer, frosty nights will be around for a while yet. With all bedding plants it's a risk to put them out this early.