We live in southwestern Ohio, and have these plants (photos at the link) coming up all around the lawn. They vaguely resemble catnip or some other mint-variety, but the leaves have no scent. They come up quickly and bloom quickly as well. What are they?
What kind of plant is this, and how often should I water it?
Is this Giant Hogweed or something else? [more inside]
What is this plant - can some one tell me? Tiny burrs like those of cleavers - little yellow flowers. [more inside]
Plant Identification Help: Can you identify this plant growing all over the walls of this building? [more inside]
Mustardy and garlicky [more inside]
Plant ID filter: Can you help me ID these two plants located in central Texas? [more inside]
Planting this plant: How? [more inside]