Nemesia floribunda

Lionfaces are popular garden annual plants almost weedy looking and attract butterflies and other pollinators despite tiny flowers, but there are masses. They have been bred into all sorts of forms, but this one is the wild type and the prettier for it. Let them seed in amongst other plants or for a meadow feel. 50cm

Enlarged flower Quentin Groom, CC0, via Wikimedia Commons

Whole plant By Rolf Engstrand