too hot for cherry tomatoes?

I planted a patio pot with a "sweet 100 cherry tomato" plant in late April. It grew fast to about 4ft tall and set fruit -- about 35 little tomatoes-- a variety of sizes and colors. It hasn't grown in about 3 weeks, nor set more fruit... no new growth of leaves, or flowers...nada. The existing tomatoes are ripening in waves, but I thought this plant was "indeterminate" and would keep on producing. It gets plenty of sun and water and miracle gro fert. & superthrive about once a week. I read that some tomatoes don't like heat, and we've had over 90 degrees here and warm nights. Could that be it?

Sometimes even the cherries stop during the worst of summer heat. I'd just keep watering, and I suspect it will produce again, but maybe not until fall.

Most cherry types will set fruit at a bit higher temps than others. My guess is your temps are preventing new fruit set. No worries - if you can keep it alive during the heat, once it cools down you will get fruit set again. Over 90° and nights in the 70s and warmer (Phoenix to a T - lol) are not conducive to fruit set. High nighttime temps are even worse than high daytime temperatures because the tomato plant never gets to rest.

There are some what are called "hot set" or "heat set" hybrids that will supposedly set fruit at higher temps. I am growing one this year called Phoenix and so far it is living up to it's traits. It is a compact determinate plant and so far is still setting fruit and we've had days over 100°. This is a test run so we'll see how well it fares.

Some others I have heard of are Florasette, Heat Wave, Solar Set, Sunchaser, Sunmaster, Sunpride and Surfire...

Most plants need a resting period between fruiting. So I would say, your plant is resting, & will start blooming again after a few weeks.

AwShucks (what a great moniker!), Sweet 100 is an indeterminate, I used to grow it for years. (Replaced it with Sungold though.)

Ditto about high temps, the pollen becomes nonviable with excessive heat or with high humidity and both of those together are a double whammy. Just keep your plant well watered and I bet it'll come back full force.

The "resting period" behillman mentioned may be what ya'll in Texas call "too dang hot to do anything" weather, it includes tomatoes, too!

Shoe

The cherries seem to produce in the heat when others stop, but I bet it has something to do with the humidity and wet conditions than the heat.

Shoe - I tried Sun Sugar for the first time this year - I like it better than Sungold... Ever tried it?

Mornin', All...

Stephanie, I hear ya on the humidity. Too high and the pollen tends to clump.

Locakelly, nope, haven't tried Sun Sugar but now that you've compared it to Sungold (and like it better) you know I'm gonna have to try it now! Thanks for the tip. Is it a red cherry or yellow/gold like Sungold?

Shoe

Shoe I tried Sun Sugar just one year. I found it to be smaller and redder than Sun Gold for me. Sun Gold for me growes pretty much orange here.

My market farmer friend only grew it the one year as well.

But you know how it goes different dirt different taste.

Thanks, Ernie. Sungold will grow to reddish but most folks around here can't wait that long and pick them at the golden stage! :>)

Hope your tomato crops are doing great this year, Ernie!

Shoe

Shoe, the Sun Sugar are gold, almost orange here for me. They are sweet but with that real tomato taste - lol...