Tomato Splitting

That’s one split tomato, huh?

Some years, I’ve had a serious problem with splitting, which means I’ve had to throw out more tomatoes than I like because they split and were later infested with worms or rot. Annoying.

Most books say that splitting is caused by watering issues. Periods of dry, followed by lots of water like a heavy rain, can cause splitting. It happens when the tomatoes are still green, and their skin/exterior is hard and inflexible. As the excess water rushes into the fruit, it causes a growth spurt that the young fruit cannot handle, so it splits.

The splitting is especially bad in years with very heavy rains. However, I’ve noticed something interesting in the test garden: 90% of the splitting is confined to the tomatoes growing in the coconut coir grow bags. The tomato pictured here is a Better Boy hybrid, so it should be tough as nails—and I promise my watering is absolutely consistent. I water the grow-bag tomatoes every morning, just the same as the container-grown tomatoes in sphagnum. And the heirlooms and beefsteaks grown in sphagnum peat hardly split at all.

So … I’ve done tons of research on this and I can’t find any proof that tomatoes grown in coconut coir are more liable to split. So have mine own eyes thus deceived me? I don’t know. I do know that coconut coir has a different water-holding capacity than sphagnum peat; it’s possible that daily watering is simply too much because the coconut coir holds water for so much longer. Then again … professional growers using coconut coir water with daily drip irrigation, although I assume they deliver much less water than I do with a standard hose. It’s possible I have yet to really understand how to use coconut coir.

In any event, at the most basic level, tomato splitting is caused by inconsistent watering, with periods of dry followed by lots of water. I suspect in my case, there’s a learning curve for using coir as a growing media, and perhaps I should try every-other-day-watering. If anyone out there has any insight, I’d love to hear it.

10 Responses to “Tomato Splitting”

Read below or add a comment...


  1. Nordstrom promo Code 2014

    Hello, just wanted to mention, I loved this post. It was practical. Keep on posting!

  2. Nordstrom Coupon Code

    Hello, just wanted to say, I enjoyed this article. It was inspiring. Keep on posting!

  3. quest protein bars


    but bear in mind, this choices dont solely take a look at movement pictures lonely. you can also fly your method to the media,computer, advertisements, movie theater, not to mention musicals. So you imagine you may boogie? may be looking to find new, n…

  5. net says:


    My bestfriend and I want to create a blogging site, but we dont know which one to use. We basically will just be uploading random stuff about anything but we want the site to be fun and decorative, not just a plain layout..

  6. tickled says:


    I always used to think that, while, the first word meant a person who blogs, the second word stood for a blog hosting site! Now, I am utterly confused because my uncle tells me, that both of them are the same hosting site for those who blog with Google…

  7. Website says:


    I’m impressed, I have to admit. Rarely do I come across a blog that’s both equally educative and amusing, and let me tell you, you’ve hit the nail on the head. The problem is an issue that not enough people are speaking intelligently about. I’m ver…

  8. Website says:


    Hello, I enjoy reading through your article. I wanted to write a little comment to support you.|

  9. Google says:


    One of our guests a short while ago recommended the following website.

  10. love bracelet replica replica

    The other day, while I was at work, my sister stole my iPad and tested to see if it can survive a twenty five foot drop, just so she can be a youtube sensation. My iPad is now broken and she has 83 views. I know this is totally off topic but I had to s…