Vegetables that should not be planted together include.
Mint and onions where asparagus is growing.
Pole beans and mustard near beets.
Anise and dill neighboring carrots.
Cucumber, pumpkin, radish, sunflower, squash, or tomatoes close to potato hills.
Vegetables that should not be planted next to tomatoes include corn, cabbage, broccoli, kohlrabi and cauliflower because the can stunt the growth of the tomatoes.
The vegetables that grow well in raised beds include.
Potatoes.
Onions.
Leafy Greens, Lettuce, Kale and Spinach.
Root Vegetables such as carrots.
Carrots. Carrots are easy to plant, easy to grow, and thrive in a raised bed.
Kale. Kale needs about a square foot of space per plant.
Cucumbers. Cucumbers come in both bush and vining varieties.
Radishes.
Spinach.
Tomatoes.
Cucamelons.
Vegetable beds should be 12 to 18 inches deep.
The material used to edge a raised bed should be stable, durable and attractive.
It is the edging that gives the bed its “look” within the landscape.
You can grow almost any plants in raised beds.
Try the following: Soft fruits: Such as strawberries, currants, raspberries and blackberries.
Vegetables: Almost any vegetable can be grown in raised beds.
A 4'x4' raised bed can accommodate 4 or 5 tomato plants.
For USDA zones with longer growing seasons, & for indeterminate tomato varieties, only 2 or 3 tomato plants might fit in a 4'x'4' raised bed.
Determinate tomato plants typically require less space than indeterminate varieties.