Frosts

Our first outside air frost last night according to two min max's reading 0°. Our forecast only suggested 4 ish (I think) which we've had already so I'd didn't take any special precautions outside. The gh was shut up early evening. From the house I can see my dahlias don't seem to have been touched nor the impatiens but I haven't yet braved the chill to check on the rest of the garden. Bonus is that it's clear, bright and sunny, and the nights are due to get warmer.