I do the same - a planting in full sun for an early harvest before the extreme heat and humidity causes my tomatoes to stop setting and a planting in partial shade for later but longer fruit production. And I also had the same experience with the Violet Jasper last year. Which was unfortunate because that tomato was terrible - mealy and almost sour tasting but INCREDIBLY prolific even after I stopped watering it, hoping it would die but feeling too guilty to pull it myself.

Hang in there. I'm near the coast so night temps are still often below 50. Plants have been in the ground 5 weeks and the tallest is 3' (Sweet 100- it's getting set to take over the world). Out of 26 plants 4 have fruit set-Sungold, Sweet 100, Black Prince and Better Boy. My "early"-Jet Setter- has not set fruit yet. Lots of floweres everywhere, some blossom drop going on, but most of the flowers are stayng attached with strong stems and I anticipate a good year if it will just warm up a tad. How well composted was your horse manure? I own the factory (actually 8 of them) and you really need to compost the sh** (sorry) out of that stuff or you will get all plant and no fruit. Water. Wait. Weed. Hey, it's early June. Some people just got their plants in the ground.

Chinese abelia has Flowers paired, opening consecutively; paired ovaries with 6 bracts at base; sepals 5; corolla funnelform, 10-12 mm; stamens and style conspicuously exserted from corolla tube http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=100018

sorry! this one didn't appear at all, so I did another