Home What's New Message Board
Select Destination Site Search

Message Board

Tomato Growing Forum

Subject:  Growing sunflowers near tomato plants

Tomato Growing Forum      Return to Board List




Date Posted


San Diego, CA

I was going dabble with growing giant sunflowers this season for fun. Got some nice seeds in the seed exchange. However, I just read that sunflowers are "allelopathic" and give off toxins from all their parts (roots, leaves, stems, flowers, seeds, etc.) that impedes the growth of other plants or even kill them. Has anyone experienced this with there tomato plants?

2/28/2022 10:05:06 PM

Little Kins

Grittyville, WA

Sunflowers are hogs for water and nutrients around the base of the plant. I would consider within a couple feet a dead zone.

3/1/2022 1:36:43 AM


Team Canuckle Heads

Yep. Just like planting them under a walnut tree. Planted every other space with a sunflower and a tomato. All the tomatoes died

3/1/2022 9:07:22 AM


Honesdale, Pennsylvania

You can always plant them in a container! Join the 5 gallon bucket challenge if they hold it again this year. It was a lot of fun and I am waiting for Zeke to post the results but I may have gotten a top 10 in the world my first year out!

3/1/2022 10:35:20 AM

Total Posts: 4 Current Server Time: 6/9/2023 8:29:40 AM
Tomato Growing Forum      Return to Board List
  Note: Sign In is required to reply or post messages.
Top of Page

Questions or comments? Send mail to Ken AT bigpumpkins.com.
Copyright © 1999-2023 BigPumpkins.com. All rights reserved.