"Dill seed" actually isn't seed but the flat, oval, dark brown whole fruits of the herb. The term "dill weed" refers to the green leaves (and sometimes stems) of the plant. Dill seed and dill weed have different chemical compositions, different uses in cooking, and different applications in herbal healing.
If you want to grow dill in your garden, plan for success. The mature plant produces thousands of seeds, most dill seeds germinate, and the plant can invade other growing beds. Dill likes a moist, well-drained soil in full sun, although it grows on most kinds of soils. Stress on the plant by heat or drought improves its flavor. If you let dill come up on its own, it will mature and go to seed before you have cucumbers. If you want to use dill in pickling, plant dill and cucumbers at the same time.
From Mountain Rose Herbs, certified organic, certified kosher