Baby cucumber
Soil temperature—not the calendar—is the real signal for when seeds will sprout. Soil warms up far more slowly than the air. Many garden crops can be direct-sown this month when your soil is sufficiently warm to support germination and ensure survival of tender seedlings.
Prominent among these are all the vegetables in the group known as Cucurbits, including cucumbers, melons, summer and winter squashes, pumpkins and gourds.