Growing Things Using HydroponicsEveryone knows that to grow plants you need four things.

Can you remember what theyare?• soil• water • food• light

Do you think plants could grow without soil?Yes! Growing plants using hydroponics means plants can be grown without soil.

In fact, growing things hydroponically dates back to ancient times and one of the Seven Wonders of the Ancient World, the Hanging Gardens of Babylon, may well have been using hydroponics.

Did You Know?Because they don’t use herbicidesor pesticides, hydroponicallygrown crops are far better for the environment.

Growing Things Using HydroponicsIn the 1600, a scientist fromBelgium, Jan Van Helmont, wroteabout a test he carried out on awillow tree. He discovered thatthe tree could be grown in waterwith no soil.

Materials, such as sand, gravelor sawdust are used to helpcontrol how much water theplant gets. This makes sure theplant is never over-watered.

Did You Know?The word hydroponics comes from Greek: ‘hydro’means water and ‘ponos’ meanswork.

How Do You Grow Plants Without Soil?

Growing things hydroponicallyinvolves placing a seed in waterand putting the nutrients, orfood, the plants needs to grow inthe water.

Did You Know?In 2015, rice was grownhydroponically for the first timewith excellent results.

Which Plants Can Be Grown Using Hydroponics?

Some of the foods you eat every daycan be grown using hydroponics.Tomatoes, lettuce, blueberries,spinach, cucumbers andstrawberries are just a few.

Lots of herbs, flowers and indoorplants have been grown with greatresults too. Using hydroponics evenallows you to grow an orange treeindoors!

Did You Know?Less water is used growing things using hydroponics than thetraditional method of growing crops.

What Are the Benefits of Using Hydroponics?

Using hydroponics not only meansthat crops can be grownanywhere, it cuts down the workinvolved as well. Some of the otherbenefits are:• control of pests • there are no weeds• crops are less likely to be

subject to diseases• resources are recycled

Since then, lots of crops havebeen grown in space. These havefed the crews and been kept forresearch by scientists.

Do Hydroponics Work in Space?In 2015, astronauts on boardthe International Space Stationate the first lettuce grownhydroponically in space.

What Is the Future of Growing Things Using Hydroponics

Now, we know that growing things using hydroponics gives us theability to grow more in a shorter space of time. It also helps us to grow

plants in areas where there is poor soil or there is no soil at all.

Talk About ItHow could growing things hydroponically help us in the future?

Where would it be useful to be able to grow plants using hydroponics?