Working outdoors is pleasant now because of the mild conditions. We have had little rain and herbaceous plants are coming up everywhere. Stitchwort is in flower far earlier than usual, along with countless other wild species, and many foliage plants are well past the stage that one hard frost will destroy the new growth. Given that frosts are possible, if not probable, for up to six weeks, the net result is likely to be some damaged or sickly plants in late April. Another drawback of the mild conditions is the appearance of whitefly in the greenhouse and an increase of greenfly.
Ventilation helps a lot, as well as improving the condition of the plants.
It is encouraging to see the garden in full swing and tempting to get into wholesale planting. Sadly it is far too risky to put out tender specimens, but do not despair because hardier species are thriving and there will be masses to see throughout April. You can find more articles in the archive under Soiled Hands .