There seems to be some talk on these forums about plant spacing, how close is too close etc.

I came across a book a while ago called High-Yield Gardening by Marjorie B. Hunt and Brenda Bortz. In the book is a list of most veggies and their intensive spacing. I thought I'd share it.

Asparagus 12-18"

Beans (lima) 4-9"

Beans (snap) 4-6"

Beets 2-6"

Broccoli 15-18"

Brussels Sprouts 15-18"

Cabbage 15-18"

Carrots 2-3"

Cauliflower 15-18"

Celery 6-9"

Chinese Cabbage 10-12"

Collards 12-15"

Corn 18"

Cucumbers 18-36"

Eggplants 18-24"

Endive 15-18"

Garlic 2-6"

Kale 15-18"

Kohlrabi 6-9"

Leeks 2-6"

Lettuce (head) 10-12"

Lettuce (leaf) 6-9"

Melons 24-36"

Mustard 6-9"

New Zealand Spinach 10-12"

Okra 12-18"

Onions (bulb) 4-6"

Onions (bunching) 2-3"

Parsley 4-6"

Parsnips 4-6"

Peanuts 12-18"

Peas 2-6"

Peppers 12-15"

Potatoes 10-12"

Pumpkins 24-36"

Radishes 2-3"

Rhubarb 24-36"

Rutabagas 6-9"

Salsify 2-6"

Spinach 4-6"

Squash (summer) 24-36"

Squash (winter) 24-36"

Sunflowers 18-24"

Sweet Potatoes 10-12"

Swiss Chard 6-9"

Tomatoes 18-24"

Turnips 4-6"

Herbs

Basil 12-18"

Dill 10-12"

Sage 18-24"

Summer Savory 12"