Container Gardening
Q.

What Is the Best to Fill Planters With?

graeme.main1 added on July 19, 2013 | Answered

What should I fill my newly made planters with? They are five foot long by two foot wide by one foot high (eg: just earth or a mixture of new topsoil and compost).

A.
A.Answers to this queston: Add Answer
AnnsGreeneHaus
Answered on July 20, 2013

It depends on what plants you plan on using. If annuals will be used, I suggest using equal parts potting soil and top soil. Using a quality (commercial), peat-lite potting soil with sterilized top soil makes a mix that is easy to use, yet heavy enough to hold moisture. You can definitely use compost instead of the potting soil. Sterile top soil will reduce weeds and pathogens.
If the planters are concrete, I line them with a thick trash liner. This keeps the soil from being to alkaline from the lime in concrete. Just be sure to poke drain holes in the liner.
If you use plants with a 'drinking problem', like petunias, consider using one of the moisture retaining polymers. Also, if you use plants that need lots of nutrition, add a time release fertilizer to supplement water soluble plant food.

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Container Gardening
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More