Let’s rewind five months to May, when I first posted about our self-irrigating planters (or SIPs). We had shiny recycled bucket systems, vigorous adolescent plants and high expectations. The plan was to compare the effectiveness of above-ground SIPs to traditional in-ground planting.
So how did we net out?
The short answer: The ones in the ground did much better. What follows is the long answer and lots of questions.
We started off with six buckets – one Champion Bush tomato, one Brandywine tomato, one Black Krim tomato, one Yolo bell pepper and two cucumbers. For comparison, we also had Brandywines, Black Krims and Yolos in the ground.
In June, the cukes died off, most likely due to above-ground temps being too cold. OK, fine. The Champion Bush looked great for awhile, with lots of flowers. The Brandywine, Black Krim and Yolo were all right – not nearly as robust as their in-ground counterparts in terms of foliage, but were lookin’ OK.
July came around, and the in-ground Brandywines and Black Krims started getting loaded with ripening fruit. But the ones in the SIPs only had three or four at a time. On July 25, we dismantled the Brandywine SIP altogether for “lack of activity.”
Come August, everything started to really go south. (Although, to be fair, the tomatoes in the ground were beginning to get ugly, too.) Flowers and leaves were dropping off. The Yolo set forth two or three peppers before going into permanent hibernation, while those in the ground continued to grow. The Black Krim got really spindly, and its tomatoes were about 1/6 (maybe even 1/8?) the size of the fruits produced by the in-ground plants:

BUT, the few cherry-sized tomatoes that we did get from the SIPs were significantly more tasty. I couldn’t resist eating them right then and there in the garden. The Champion Bush ended up producing some decent-sized fruit, but they were pretty bland. (more…)