[Arid_gardener] no tomatoe blossoms

[DAVE FLAKER]

I have finally found a spot on the east side of my house in Lake Havasu 
City to  place my tomato box,  It is nine feet long and five feet tall 
two feet deep.  I wrapped it in 50 percent shade cloth and have an east 
facing door to get into the planting. After the frost my November plants 
all looked like boiled spinach three feet tall.  One plant barely 
survived and now has two fruits.  I planted new vines right after the 
frost ended and they are now three feet high and dark green.  The 
problem now is that no blossoms are appearing and if they don't show up 
before May and get pollinated I will have another season with no fruit.  
Is there a way to stimulate budding? 

In the enclosure no bees can get to them, so I use bud set hormone 
spray.  I haven't seen a bee yet this year.  I heard they are going extinct.