Skip to Content
Official Blog of the UC Master Gardener Program of Contra Costa County
by Vera Lis
on August 5, 2016 at 2:42 PM
I noticed that some of my cherry tomatoes are splitting on the side of their body.  
Am I watering too much?
Reply by Stephen I Morse
on August 7, 2016 at 9:33 AM
Could be a variety of reasons... watering too much might be one of them... cherry tomatoes are notorious for splitting... at least according to one MGCC reference that cites that trait... see last sentence "culture" paragraph in there are lots of sources that cite splitting of tomatoes.. often citing heat spells causing the "inside" to grow too fast for the thinning skin (as they ripen) and splitting... watering deeply and infrequently is often cited as one way to avoid splitting... even to providing some additional shade during a heat spell... reviewing the references I have I couldn't find any sure answer re: splitting... infrequent, deep watering seemed to be a common thread though to avoid splitting and that it is usually episodic depending upon heat spell... the references I checked also said that it doesn't really harm the tomato per se as long as bugs don't get in the cracks and that sometimes they even heal no less... in the citation above it also cites that some tomatoes, cherry tomato varieties especially are prone to splitting, so you might try other varieties to possibly avoid splitting... for your information, SunGold cherry tomatoes are consistently voted a favorite at the MGCC tomato tests... but I think it might be somewhat anecdotally prone to splitting but I couldn't find confirming evidence for this response... hope that answers some of your concerns... and properly cared for most tomatoes can produce all the way theough October... I've had tomatoes from my garden for Thanksgiving... not the spectacular summer tomatoes, but usually tastier than store-bought ones...
Leave a Reply:

You are currently not signed in. If you have an account, then sign in now!
Anonymous users messages may be delayed.

Security Code: