Arugula has been so successful that we throw seed in the edges of the property and let them go. This patch today is full of the white cross blooms and also full of bees. I managed to catch one in this shot.
Iris are beginning to bloom, the peach and apricot trees are well into blooming. Blueberries are starting to form buds.
Update: to the recent Anonymous commenter on an old post about the Arugula. I have not moved Arugula as whole plants but I think you might be able to do it if you get the roots and soil together. Cutting is not going to work. If the Arugula is flowering, you can let it go to seed and then you will have plenty of seed to sow. Identification of the seed pod is required. If you know what a radish pod looks like you will have no problem. Look for a green very slender pod that appears after the flowering, let it grow until it turns brown and even opens and then collect the pods/seeds. The seeds sow easily, but be aware that finches love the peppery seed and will open the pods themselves and eat away!