Having had a mild winter, it's hard to discern if spring is here. Been very rainy just lately, which makes setting out a tricky operation. Seems everything - except the coronavirus - could benefit from a good dose of sunshine.
Dill is one of those herbs that will self-seed. You are likely to find volunteers scattered about, even after your first year of growing these Mammoth Dill. But you won't be able to add them to your fish, salads, eggs or sauces in April if you don't start them inside during late winter. If they look sad, chances are that you have over-watered them, or not provided them with enough sun. Also remember that once they start putting on woody growth, they need plenty of nutrients. Especially if their soil is shallow you will need to fertilize them regularly.
Pickles can not be far behind!