that's great!! I've planted a indoor Winter Garden for several years now and love it. I love heirlooms because you can save the seeds, But you do have to consider that most heirlooms sometimes take up alot of space compared to seeds for plants that were created to take up less room. I have found that I have to plant some Hybrid seeds to get Cucumbers in the Winter, I use Spacemaster Cucumber Seeds from Burpee.com, they take 56 days to produce and their vines reach less than 24". What I do is plan ahead for next winter in the summertime, I buy extra packs of seeds and store in cool dry place, until starting my winter garden, which I start 4-6 weeks before the 1st frost so as my outdoor garden is dyeing, my indoor garden is starting to produce. As for as Scallions, I buy 2-3 bunches at the grocery store and use just the tops, plant the white bottoms with roots and clip just the green parts for eating, I have fresh green onions all winter. Also for your tomatoes, when they get flowers on them, you will have to either blow on them or thump them in order to get them to pollinate, it's very easy. I hand pollinate the cucumbers with an old small paint brushs but you could use use almost anything, Q-tip or small finger. I have Tomatoes (these take sometime 3 or more months to produce, so I start these in July or early August) and get tomatoes in Early Oct., Cucumbers, 3 different lettus, Green onions, Basil (2 different kinds) I keep my Cool sensitive plants like Cucumber, Tomatoe, basil (and Bell peppers will need lots of heat) inside my terrarium, the onions, lettus can stay at cooler room temp.I also use old heating pads to get seeds to sprout faster, helps warm up the soil. If you would like some of the Cucumber Seeds, let me know, I would be happy to ship some to you in a letter sized envelope. I will be getting a new pack this coming summer at
Walmart for $1.00 but if you purchase now on Burpee.com it cost $4.95 plus shipping. I wish you success and happy winter gardening, it's addictive!!