Winter Aconite (Eranthis Hyemalis).
The Winter Aconite is welcome because it comes so early in the spring, and even pushes up its bright yellow flowers, surrounded by a whorl or ruffle of glossy leaves, through the snow. It will grow in almost any garden soil, and is a good plant to put under shrubs or amongst ferns, as it does not mind shade. It can be increased by dividing the tubers in September; but if your Aconites do well, you can leave them year after year and let them manage themselves.