I am unsure if this is a high desert gardening thing, or if this happens often when growing veggies, but I’ll explain the problem I’m having, and then maybe some can please explain to me what is going on with my mini garden… (click on the photos to see full size images)
Okay, here is my dilemma:

Some time ago I prepare to small plots to grow mammoth sunflowers, yardlong beans and pumpkins. Each plot was prepared exactly the same. Each plot gets the same amount of water, sunlight, and also the same exact amount of seeds. Here is the problem though; as you can see from the photo to the left, the first plot plantings which is in the foreground is a quarter of the size of the other plot. The sunflowers, seeds and pumpkin are all from the same stock, so its not like I used a few different kinds of seeds. Everything thing is EXACTLY the same, yet I have tremendous growth in the second plot, and only meager growth in the first plot…what the heck is going on?

Here are more photos I took this morning of the plots…please leave a comment if you know what is going on here:

A photo of the second plot with great growth. Both all the pumpkins I planted (both the large ones and the small ones) have set fruit already.

Another shot of the second plot.

This is the first plot. Why the heck has this happened. I truly do not understand it. The same happened in the back plots where I have other sunflowers planted. All were planted at the same time, watered the same amount and get the same amount of light, but the very last sunflower I planted in the back in now starting to form the head, but the first one I planted isn’t more than 1 1/2 feet tall. Is this a high desert thing, or just something that happens?