First hard frost of the winter

Today was the first hard frost of the year. The thermometer in the greenhouse registered the night time temperature dropping to -5°C. This did mean the morning was very cold but the garden looked beautiful…. so I took a few pictures:

Frozen pond:

View across the frosty green roof:

Frosty edge to the green roof:

Frost on a house leek (Sempervivum sp.) on the green roof:

Frost on sedum (also on the green roof):