Planting vegetables at home for beginners | Zone 5B

Planting calendar - Zone 5B
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What I did this year:
00:36 -- 12 weeks before (Feb 14)
winter sowing: poppy seeds
01:31 -- 10 weeks before (Feb 27)
start seeds indoors: peppers, eggplant, marjoram
04:13 -- 8 weeks before (Mar 13)
start seeds indoors: tomatoes, basil, cabbage, kale
06:12 -- 6 weeks before (Mar 28)
start seeds indoors: swiss chard, lettuce
start seeds outdoors: radish (16 in 1 sqft), spinach (9 in 1 sqft), peas (8 in 1 sqft)
07:48 -- 5 weeks before (Apr 4)
start seeds outdoors: carrot (16 in 1 sqft), dill (4 in 1 sqft)
09:05 -- 4 weeks before (Apr 11)
start seeds indoors: summer squash, watermelon, cucumber, cantaloupe
start seeds outdoors: parsley (4 in 1 sqft)
transplants: cabbage (1 in 1 sqft), kale (1 in 1 sqft)
11:31 -- 2 weeks before (Apr 25)
winter sowing: marigolds, asters, sweet william
start seeds outdoors: beets (9 in 1 sqft), peas (pre-soak for 24 hours, 8 in 1 sqft)
transplants: lettuce/swiss chard (4 in 1 sqft)
12:49 -- 1 week before (May 1)
transplants: bush tomatoes (1 in 9 sqft)
14:03 -- Last frost date (May 9)
start seeds outdoors: coriander (4 in 1 sqft)
transplants: basil (4 in 1 sqft), sage (1 in 1 sqft)
15:13 -- 1 week after (May 16)
start seeds outdoors: beans (do NOT pre-soak, 9 in 1 sqft)
transplants: pepper (1 in 1 sqft), vine tomato (1 in 1 sqft)
17:26 -- 2 weeks after (May 23)
transplants: summer squash (1 in 2 sqft), cucumbers (2 in 1 sqft), eggplant (1 in 1 sqft), watermelon/cantaloupe (1 in 2 sqft)
What I'm planning to do differently next year:
- start radish, spinach, peas 1 week later
- use winter-sowing for lettuce, swiss chard
- start tomatoes 2 weeks later
- start summer squash, watermelon, cucumber, cantaloupe 2 weeks later