Try and distinguish between the new growth and the oldest leaves, especially on artichokes. As long as the rhizomes stay healthy, the leaves & fruit will eventually come, no matter how ratty any one leaf looks. Transplant shock can be rough and produce stress signs in all plants, but it's best to wait it out a bit and see if the new growth recovers. Splashing soil up on the leaves while watering can produce yellow & black spotting too, it's one of my biggest challenges, as a moment of garden ADHD while watering means I've just splattered an entire row of seedlings with soilborne fungi and bacteria. It's often localized and never spreads beyond the affected leaf, except on my solanums (tomato, eggplant, potatoes, ...) it can mean I've just sent early blight everywhere, as I can't seem to get that disease out of my garden ever since my Home Depot tomatoes were infested. Whiteflies leaving your nursery-bought plants is a huge problem, it's illegal for the nursery to sell you infested plants. Get a refund and/or find another nursery. I rarely use box stores anymore, their pest prevention is weak (at best).

Some follow-up information... Zone 6 in southwest Virginia. I only gave them a small bit of diluted MG Tomato fertilizer a few weeks back when I transplanted them into their large 10 gallon pots. I also gave them some egg shell powder in their hole when transplanting them, along with about a half teaspoon of epsom salt. We had some hot temperatures about two weeks ago followed by alot of clouds and rain since. They get morning and evening sun (under some trees). The tomatoes that are coming out of the buds look healthy and unaffected... they are marble sized. Thanks again.

Willows - Salix species - are prone to a host of fungal and insect issues but few that bother foliage enough to be a concern. Too often folks freak out about leaf spotting or minor insect issues and rush to spray something........usually unnecessarily. Plants get problems and blemishes - pretty much a fact of life and the natural course of events. At this time of year, as ken notes, there is nothing you need or should do other than clean up fallen leaves and discard.

Josh - The plants I have under lights for the winter get fertilized each time I water with 1/4 tsp of FP 9-3-6/gallon of water. When I water, about 10-20% of the total amount of water I apply exits the pot. If your plants are getting natural light and you think they could do with more, you might try fertilizing at the strength I mentioned, then water twice so you're flushing the soil, then repeat.At these low doses, there isn't much concern about over-fertilizing unless the soil is VERY dry. I'm watering well before there are any indications of drought stress, and have seen 0 indication of plasmolysis in any of the plants. Keep in mind that plants make their own food - glucose. Fertilizers are the building blocks they use to grow and keep their systems orderly. Charles - There is a difference between air movement and a cold draft or a hot wind. Air movement upsets the boundary layer (of air) surrounding the leaf and increases transpiration. This means that more nutrient solution is moved through the nutrient stream - generally a good thing. Air movement can also have a significant impact on keeping pests and diseases in check, and it helps promote back-budding. On the other hand, if your plant's ability to move water to distal parts is limited by poor root function/health, air movement can be a negative insofar as the plant's appearance goes, because increasing water demands combined + an inability to efficiently move water to the plant's distal parts will produce more necrotic leaf margins or tips. I have 2 - 20" box fans (set to low speed) in my grow area + a 12" round fan blowing over a plastic cake pan cover ($1.50) that holds 2 gallons of water with humidifier wicks in it to increase humidity, which really decreases the humidifier's run time. Too, MG soil has water retention issues you need always consider because of how water retention impacts root health/function. How much/often you water is always a consideration when you're using a water-retentive medium. Al