Nightshades

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Potatoes

When to plant: February–April (possibly May) Potatoes usually mature 90–120 days after planting (depending on the variety). You can harvest a few at a time and leave the rest until you are ready to eat them. When you "rob" potatoes—for smaller, more tender new potatoes—be careful not to damage the plant…
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Eggplant

Transplant: May–June For best results, wait until daytime temperatures are regularly over 75°F Start in pots for transplants: February–April; ready to transplant in 8 weeks Harvest window: August–October, two to three months after transplanting, depending on variety.
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green cherry tomatoes, orange and purple tomatoes, yellow and purple tomato
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Public Tomato Trial

We invite you to join our public tomato trial and be a citizen scientist! Help us gather information by growing trial tomatoes in your garden and reporting the results.
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Tomato Trial: Getting Started

Review Growing Great Tomatoes before planting your seedlings. Harden off your seedlings by gradually acclimating plants to outdoor conditions for 4 to 7 days before transplanting into the ground. Start by placing the plants in a sheltered location like a covered patio.
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Tomato Staking Techniques

This is a summary of what we learned from our 2001 tomato project in regards to tomato staking methods. We grew just over a hundred varieties of mostly heirloom tomatoes at the now closed University of California Bay Area Research and Extension Center facility in the City of Santa Clara.
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Assortment of colorful, red and orange tomatoes
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Spring Garden Fair Tomatoes

We offer a wide selection of delicious tomato seedlings, from huge beefsteaks to bite-size cherry tomatoes, both heirloom and modern varieties, in a rainbow of colors. All have been trialed by UC Master Gardeners and chosen for great flavor, productivity, and vigor.Public Tomato TrialIn addition to the…
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Growing Great Tomatoes

Tomatoes do best planted in full sun all day, although they will usually produce some crop with less. If your plants have had symptoms of disease in previous years, it is important to plant in soil that has not grown tomatoes or their relatives such as peppers or eggplants for three or more years.
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High Density Tomato Growing

Too many tomatoes to choose from? Can't make up your mind? Consider High Density Tomato Growing, a great technique for anyone who wants to try lots and lots of varieties. Some advice: Plant two different tomato seedlings together in a single cage.
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Tomato Tips

Here's a listing of all our tomato tips. For more information about caring for tomatoes and the most common problems, refer to the UC Pest Site page on tomatoes.
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Tomatoes

Transplant: May–June, possibly April For best results, wait until daytime temperatures are regularly over 70°F Start in pots for transplants: February–April; ready to transplant in 6 weeks
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