1. Plant Selection Urban Farming Unit
Expected amount of time: 20 minutes – would be good before a pre-lab for something else.

2. List 4 limiting factors for plants.
Reviewing Objectives
List 4 limiting factors for plants.
Sun
Water
Nutrients
Space
Air (carbon dioxide)
Time to produce
Temperature
Students may say food which would be correct but get them to think about what is plant food? Do they mean the sugar or the nutrients?

3. Discuss the SWANS requirements necessary for these 2 restaurants.

4. indoor cherry tomato, not very healthy
Considerations
Some plants simply will not grow without direct, full sun and without a ton of space.
Some plants prefer the shade and will wilt and grow poorly in the sun.
indoor cherry tomato, not very healthy
herbs
hanging cherry tomato,
very happier

7. Herb Gardens
Teachers: You may want to write the constraint for each period on a different chalk board for each class

8. Plant selection criteria
Planting Depth - eliminate any that require 2’’
Sowing Date - eliminate any cool weather crops (Jan or Feb sowing date)
Germination is how many days it takes to sprout green
Soil Temperature - eliminate any requiring soil to be over 90 degrees
Adequate Spacing (Plant “) - eliminate based on your prototype design
Days to Maturity – this means when you will see fruit for your vegetables and availability of herbs.
We typically use herbs BEFORE they reach maturity.
Correct tomato sowing time and cucumber soil temp

9. Complete this with your group members.