Annuals that do well in Northern New Hampshire
This is my second season attempting to start plants from seeds. Last year I grew zinnia, bachelor buttons, marigolds, forget-me-nots, snap-dragons, and portulacas from seed. I started them under lights in my basement, then transplanted on May 30th. The snap-dragons and portulacas did awful, and the others finally flowered but not until mid-August. Admittedly, it was a cold, wet summer and other gardeners in the area told me their plants did not do well.
Any advice on what flowers would do well in my 4a growing region? I also tend to have a lot of partial shade on my property.