Where in WA are you located? For much of the Puget Sound basin it is still simply just too cold for tomatoes to do much of anything, especially at night, and they often respond to the cold by the leaves changing color, both darkening or bleaching/yellowing. OTOH, it could be the first signs of early blight but we'd need to see a pic of the leaves to confirm (personally, I think it is still too early even for early blight :-)).

Even my tomato starts in black containers and on a south facing deck against the house - maximum sunlight and heat conditions - are not doing much of anything and some leaves are looking peaked. Now if we could just manage to stay above 50F at night, into the 60' or 70's during the day and stack more than two days of sunlight together in a row, these guys might start growing properly!

Thanks for your response gardengal48!
I am in Issaquah.
But then how r these plants do so well in the containers outside HomeDepot?
Should I wait then before bringing more plants?
just thinking the fruiting might be delayed and then it will be time for Fall weather then...

The tomatoes at Home Depot were grown in a greenhouse. They stopped growing the minute they were taken out of the greenhouse. They are being damaged by the cold; they just don't show it yet.

The weather will be rainy and cold (40s at night) until at least June 10. It may be time to face reality: the only red tomatoes in western Washington this year are going to be at the supermarket.

If you have a greenhouse, a coldframe, an enclosed porch, or a fluorescent light growing setup in the house, that's the place for your tomatoes, peppers, and eggplants, until night temps get above 50 degrees F.

Here is a link that might be useful: weather

This has been a brutal spring for growing anything here on Vancouver Island. Even cool crop veggies like peas and spinach are stunted. Unless we get some sunshine soon our harvest is going to be really bad! I put 3 tomato plants out with protection but they don't look happy either sal.wa. I think our nights are starting to be warm enough, but we sure need sunshine....please?

Here are my tomatoes and peppers, safely tucked away under lights in a nice, warm corner of my kitchen:

Those plants look nice enough.

2010 patience is required again for 2011. September tomatoes are nearly as good as high summer tomatoes. October tomatoes can be processed, frozen, and used in cooking.

2012 hope springs anew.

It's certainly possible to get tomatoes this season. Buy varieties bred for a cool short growing season, plant in containers (black holds the heat best) and place where they receive maximum sunlight combined with any available reflected heat. And start out with well-developed plants to begin with.

Mine are blooming and beginning to set some small fruit, although the plants are still not very big and bushy....yet. I'm kind of excited about the new variety I'm trialing this year - Beaverlodge Slicer. Supposedly a very early bearing selection with big crops. Tested out very favorably at last year's Kitsap tomato "taste-off" :-)

My tomatoes are in the greenhouse but my lettuce going mad in the garden.

Lillydude, your tomatoes look very good!
thanks all for your posts...
I guess I will just wait for couple days before getting new grown plants...as weather forecast shows the temps r increasing both day and night...
any fertilizer to make them grow better?

I recommend that you buy a bag of 5-10-10 or 10-20-20 fertilizer, and a bag of dolomite lime. You can use them to fertilize just about everything. Buy as big a bag as you think you can use in a few years. The tiny bags are a ripoff if you look at price per pound. If you need a fertilizer for acid-loving plants like blueberries, get some Ammonium sulfate (NOT Aluminum sulfate). Do not mix Ammonium sulfate and lime. Don't buy vitamins or hormones for your plants. Most of the "magical" stuff at the store is worthless. For your garden, don't buy lawn fertilizer with broadleaf weed killer mixed in. It will kill everything.

Before planting veggies, spread lime and fertilizer (a handful of each over a one-square-foot area). Then dig it in deeply and thoroughly with a shovel. Tomatoes don't need a lot of fertilizer, but it helps to kick-start them after transplanting. Ideally, you should spread lime in the Fall and fertilizer during the growing season, but it won't hurt anything if you apply them together.

Ideally, you should get a soil test done, but nobody does this, so just spread some fertilizer and lime.

Even though afternoon highs in the 70s are predicted for this weekend the overnight temperatures forecast for last night were still in the 40s - too cold for what are pretty much tropical vegetables (tomatoes, basil etc.) to be outside at night, without a covering (cloche or frame with plastic on it).

Tomato plants enjoy blazing heat, growing them under cover pretty much the whole season is not a bad idea.