Shop lights with sunlight or daylight spectrum. I have metal shelving units in my basement, in front of a big double window, so they get benefit of flourescent AND sun. I hang the lights so that they almost touch the plants, and indeed, they sometimes do touch the plants. Don't forget to dose plants with fertilizer and epsom salt.
Seeds: Fedco seeds, plus bulk from my local feed store.
I also harvest seeds from the garden: Suyo Long, Fortex Beans, Kale, Parsley, Dill, Cilantro, Calendula, Lettuce, OP tomatoes, squash, OP melon.
Potting mix: Pro mix by the bale. Be sure to buy the one that has the bacteria or fungi in it to combat damping off.
Trees and such: St. Lawrence Nursery in NY. Also, Fedco Trees.
Drool material: Johnny's Selected seeds. Their catalog is an incredible source of information.
Potting trays: Blue Seal (my feed store) I also save a lot of pots from one year to an other. I have more 4" pots than I will ever use in my life time.
Fertilizer: 10 - 10 - 10 by the big bag. Miracle gro type: store brand from
Walmart. Escargo or Sluggo type of slug control w/iron phosphate as the only active ingredient. Store brand from
Walmart. There is also an other one on the market with spinosad added.
Flowers/herbs: Every year, I bring in some potted plants for the winter. This year, I have 3 different colors of geraniums, plus citronella, and rosemary. When I start my seedlings, I'll also take cuttings from the geraniums. That will provide me with lots of flowers. A few trays of marigold, zinnia, and dahlia will complete my flower beds, so I no longer need to spend money on 6 packs for summer flowers.