I always plant in beds rather than rows, and vaguely go by the spacing suggested on my seed packets. Some seeds (like lettuce), I'm prone to loosely scattering across the prepared area. I grow from local nursery seedlings more than from seed - partly because I've done the seedlings in the house thing before, and I know I'm not great at it/too busy; but also because seed packets give me way, way more plants than I have space and I like different varieties. (If I have room for 8 tomato plants, they're likely to be all different heritage varieties.) Some vegetables (like tomatoes) should be rotated - not grown in exactly the same spot year to year, because of the nutrients they draw out of the soil.
Last hint: some folks swear by collecting some brushed out dog hair and putting it around the garden to deter squirrels.
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I always plant in beds rather than rows, and vaguely go by the spacing suggested on my seed packets. Some seeds (like lettuce), I'm prone to loosely scattering across the prepared area. I grow from local nursery seedlings more than from seed - partly because I've done the seedlings in the house thing before, and I know I'm not great at it/too busy; but also because seed packets give me way, way more plants than I have space and I like different varieties. (If I have room for 8 tomato plants, they're likely to be all different heritage varieties.) Some vegetables (like tomatoes) should be rotated - not grown in exactly the same spot year to year, because of the nutrients they draw out of the soil.
Last hint: some folks swear by collecting some brushed out dog hair and putting it around the garden to deter squirrels.
Good luck!