cross pollination sounds right. and its very unpredictable so there's no telling. ~tom

I'm a newbie so consider the source... the thing I read over and over again is that if you let the plant dry out until the leaves wilt... then water... it will increase the heat... maybe so much rain is the culprit?

Hi Cathy You must be well north of me. Yes the population of bluebirds does decline after a harsh winter my numbers have stayed around 35 to 40 pairs the last few years... back in the 1990's the weather was different winters were mild and the bluebird population low at the time doubled in the mild years. New England had a cold spring of april of 2008 many females weak from there trip north perished on half made nest. Its just not winter weather that kills bluebirds! Food supply at its lowest in april many bluebirds perished and my flock which was already paired off were flying around the town and reforming there bonds with other bluebirds because of this extreme cold weather in april killed so many nest box's just ready for eggs were found with nothing but dead bluebirds I have such a volume of bluebirds that return here I did not feel the loss like so many others in near by states The month a may brings in the youngest of the bluebirds and what ever box's are empty are quickly taken by these first year breeders. I can support 60 pairs but only once in the 1990's were they all used by bluebirds. Alot depends on weather and your local population of bluebirds. My bluebird box's have been in place for years and with out question they are super prime locations. Bluebirds with care can live three to five years. Those are area's void of HOSP And cats! I have a few bluebirds that are absent I blame the harsh winter. But the sites should be taken by young bluebirds that i produced last year. Ray

Daniel, I have experienced very similar results this year in northern MN. All seeds were started at the same time, planted out at the same time, and treated the same. 2 of my early varieties (Glacier & Bloody Butcher) did beat Cherokee Purple, but only by 8 or 9 days. About 10 days after the 1st early small tomatoes, I picked a Giant Belgium that weighted 1# 8oz. At about 2 weeks after the earliest fruit, several 1# plus C.P. were being picked. The 1st fruit from my "Early Pick" variety were just starting about this same time. However, other large varieties, are very late. Mortgage Lifter, Black Krim, Super Steak, Super Beef Steak, are all very Sloooow. All plants are growing in the same conditions. This is the Giant Belgium that was only about 10 days behind to early little tomatoes: A very strange year.