April is the greening month. The earliest spring plants, which came up with not a trace of green, such as rue anemone and twinleaf, turn green. Other plants, such as crested iris and Pennsylvania sedge do most of their growing in these few weeks.
Pennsylvania sedge generally blooms in late April, but it seems to be more temperature than daylight sensitive.
The other big groundcover in this yard is wild ginger. It needs shade and regular moisture, and it comes up in mid-April looking like little fish poking their heads out of the water.
In a week, the wild ginger will shade the ground completely.
As the ginger matures, it becomes an excellent textural backdrop for other plants. It has a calming, cooling effect in the garden.
Wild ginger can need supplemental watering during droughts, especially if it gets hot.
By the end of the month, the biggest of the spring ephemera are just about gone. The remaining bluebell stems are quite yellow, requiring big distractions. Hostas are up for the job.
It’s chilly this week, so the plan is to enjoy these lovely greens now. The heat is coming.