A few reasons why you should do this.

You will:

• Avoid watering problems
• Avoid shade problems
• Avoid over planting
• Decide which seed to order

When laying out your garden, you should keep these types of plants together since they require similar water attention.

Learn the difference between Cool Season, Intermediate and Deep Rooted Plants and when you should plant them:

COOL season shallow roots  (water twice a week)

These plants love the colder temperatures and can handle some shade better than any other group listed here.

• Lettuce
• Spinach
• Swiss Chard
• Radishes
• Beets
• Carrots
• Potatoes
• Broccoli
• Peas
• Celery
• Cauliflower
• Turnips

Intermediate Root depth  (water about once a week)

These plants are in between the two groups I've already mentioned.

• Beans
• Peppers
• Zucchini
• Cucumbers
• Onions

Deep roots require infrequent watering  (water every 10 – 14 days)

These plants love lots of heat and also require the most sun.

• Fruit Trees
• Grapes
• Watermelon
• Crenshaw
• Cantaloupe
• Pumpkin
• Squash
• Cucumber
• Yams
• Tomatoes
• Corn

NOTE:  ALL crops you grow need FULL sun but because of trees and houses, we can't always give them full sun.  Cool season crops can deal with less sun much better than the deep rooted plants like tomatoes, melons, grapes and fruit trees.

Some reasons why seed may not come up

• Soil gets too dry
• Packed soil or hard crust
• Cold weather, slow germination, seeds rot.
• Fungus diseases i.e. "damping off"
• Cut worms and other insects