I would like to control my weeds, but organically. Is there a product that Jonathan Green supplies? If so, what is it, and when do I apply it?

Yes, Jonathan Green does offer an organic weed control, in fact this product is also an organic 9-0-0 fertilizer. The active ingredient is corn gluten. This product is really a Spring application however as the corn gluten is a pre-emergent and not a post emergent for weeds that persist now. If you don't want to treat weeds with a chemical control then I suggest you wait until September when the weeds have run their cycle and start to re-seed where there are thin or bare spots in your lawn. Make sure you loosen the soil, use the Jonathan Green starter fertilizer and then keep moist for around two weeks. It is far more beneficial to re-establish your lawn in the fall and then apply the organic fertilizer with the weed control in April. Please remember you cannot seed with this product as it is a natural pre-emergent. Thank you for your interest and question. Jonathan Green