Comments on: Preen Before or After Mulch: Which is Best for Your Garden?

By: Patti Norton

Patti Norton — Sun, 21 Aug 2022 14:52:06 +0000

I use Preen in the fall, in the early spring and before planting seeds. How does it keep weeds from growing but my flower seeds still germinate??

By: Doug Hensel

Doug Hensel — Wed, 27 Jul 2022 13:54:30 +0000

In reply to Linda McDonald.

Linda,
Good Morning.
You are good with using Preen under as well as on top of the mulch. Preen is safe to use in and around shrubs. Preen is keeping weed seeds from germinating and not hurting established shrubs or trees. Thank you for this message. Take care, Doug

By: Linda McDonald

Linda McDonald — Mon, 25 Jul 2022 22:51:25 +0000

We just planted 2 beautiful David Austin rose gardens as well as some hydrangeas and vinca flowers. My husband put Preen down before putting down about 2 inches of good black mulch and then he sprinkled Preen on top of the mulch also. Is that too much Preen? Will it be harmful? Is Preen ok for shrub roses? Really want to know because we have 60 shrub roses and they were expensive so don’t want them to die! Please reply.

By: Doug Hensel

Doug Hensel — Fri, 08 Jul 2022 18:12:27 +0000

In reply to Pat.

Pat,
Good Afternoon.
Sorry to read about you losing your pumpkin plants. To my knowledge Preen should not be the culprit since you mention that the pumpkins had already started growing. But, I can’t say 100%. I just don’t know what would have caused all your pumpkin plants to die. I hope that somehow you can solve this mystery. Doug

By: Pat

Pat — Fri, 08 Jul 2022 16:43:52 +0000

THe pumpkins that I planted from seed died after I applied preen and mulch, they weren’t up very far when I applied the preen. Now I have looked for a cause to the loss of the plants and can’t see any guidelines on the preen sheet for pumpkins. Do you think it could have caused the loss of the plants?

By: Doug Hensel

Doug Hensel — Wed, 06 Jul 2022 12:10:41 +0000

In reply to V. Thank you. I had no idea that Preen has wood chips. Up to this point we have not carried the wood chips in our inventory. Thank you for this information. Doug

By: V

Wed, 06 Jul 2022 02:22:59 +0000

Preen now has wood chips in 3 colors, however its more shredded than chips.

By: Doug Hensel

Doug Hensel — Thu, 23 Jun 2022 11:28:56 +0000

In reply to Pam.

Pam,
Good Morning.
I think you will need to purchase the products separately. I am not aware of any product that you can buy that has mulch and Preen already together. Doug

By: Pam

Pam — Wed, 22 Jun 2022 18:18:53 +0000

What is better mulch with added preen or should I buy them separate. Thank you

By: Doug Hensel

Doug Hensel — Tue, 14 Jun 2022 15:30:50 +0000

In reply to Sherry. Sherry, Good Morning. We both know that Savannah is in a warmer climate than here in Richmond. With this said then I would think about putting Preen down in late January or around the first of February. Preen stays active for around three months. So, for you in Savannah earlier the better chance of keeping the early sprouting weeds from germinating. Then I would consider putting down a second application of Preen in two to three months. Good luck. I love Savannah. Doug