Warm season vegetables, or summer vegetables, can occupy a garden systematically. A few lingering cool season vegetables may continue production for a while. Warm season vegetable plants can replace them as they finish. Several warm season vegetable plants should start as early as possible. Others grow in a few later phases through their season.
For example, indeterminate tomato plants are productive throughout their entire season. They can start as soon as convenient. However, determinate tomato plants produce only for two weeks or so. After their initial phase of a single plant or a few, subsequent phases can start about every two weeks. Each phase continues production after its predecessor.
Bush bean and several varieties of eggplant and pepper also produce for brief seasons. Okra and cucumber might produce for most of summer. Secondary phases may increase their production as well though. Of all warm season vegetable plants, corn benefits most from phasing. Each phase tends to mature so uniformly that it finishes within a few days.
Pole bean, squash, some cucumber and Indeterminate tomatoes need no phasing. Such warm season vegetable plants perform from spring planting until frost. Winter squash are warm season vegetable plants, but their fruit finishes for autumn. Indeterminate tomatoes are less profuse than determinate types. Cumulatively though, they are more productive.
It will soon be time to sow seed for corn, beans, root vegetables and most greens directly into garden soil. Seedlings for these warm season vegetable plants are not conducive to transplant. Besides, too many are needed. Cucumber and squash grow either from seed or small nursery seedlings. Only a few plants are needed, and they transplant efficiently.
For the same reasons, tomato, pepper and eggplant can grow from seedlings rather than seed. Moreover, since they are so vulnerable as they germinate and begin to grow, seed is less practical than seedlings. Varieties that are unavailable at nurseries can grow from seed in flats inside or in a greenhouse. Ideally, they should have started early enough for transplant into a garden during appropriate weather.
Tony Tomeo 
I have raised beds, add compost each year, but am at my wits end how to grow tomatoes because they get blight every single year and I have to remove them before I really can harvest. One year I dug out half the soil and replaced it all, but that still didn’t help. I move them around as much as I can, but that still doesn’t seem to help.
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Tomatoes are likely riskier in your climate than they are in the arid climate here. Nonetheless, some cultivars perform very well there. Because I am unfamiliar with the problems associated with the climate there, I am unqualified to identify the problems associated with growing tomatoes there.
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I’m about to start my tomato seeds here, in my basement on top of the furnace until they sprout sometime next week. Then they live under grow lights until at least Memorial Day, if not the first week of June. Hopefully I’ll get enough Romas to put a few quarts of sauce in the freezer.
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Goodness! This climate may be boring, but at least it is conducive to lazy gardening.
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I’ll be very excited to start the seeds for some tomatoes and peppers in a couple weeks. They will grow and stay inside till our safe date which here is 5/15.
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MAY?! Oh my! I get it, but it still seems SO late. Last year, I pruned apple trees that were not yet blooming during late March.
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Our growing season is short here. In recent years there hasn’t been a frost after maybe 5/1, but careful gardeners still go by grandma’s 5/15 date.
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That is two months after ours, although we got frost a few days into March. Frost and chill are complicated topics for the gardening column, since we get a bit here, but Beverly Hills in the Los Angeles region does not even have a frost date.
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We can get frost into May, and even an occasional hard freeze in April, tho both of those are becoming more rare in recent years.
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That might justify brumation!
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After a month or so of winter, I want to brumate myself.
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Well, in your climate, that is understandable.
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