Pest management: Tomato cultural tips, pests, and diseases
When to plant
- Transplant: May–June, possibly April
- For best results, wait until daytime temperatures are regularly over 70 degrees
- Start in pots for transplants: February–April; ready to transplant in 6 weeks
Harvest window: July–October, depending on variety
Fertilization: Overfertilization results in excessive leafy growth at the expense of flowers and fruit.
- Cage or stake plants to support expected growth. Indeterminate varieties can grow 6 feet tall or more.
- Water regularly but not excessively.
- Harvest tomatoes when fully colored and beginning to soften.
Recommended Varieties for Santa Clara County*
Classic: Black from Tula, Carmello, Dona, Early Girl, Gold Medal, Lime Green, Orange Strawberry, Santa Clara Canner, Stupice
Beefsteak: Aunt Ginny's Purple, Aunt Ruby's Green, Big Rainbow, Brandywine from Croatia, Cuostralee, Ed’s Millennium, Ernie's Plump, Ernie's Round, Green Giant, Hillbilly, Russian 117, Stump of the World
Cherry: Black Cherry, Chadwick, Galinas, Sungold, Sugary, Sun Sugar, Sweet 100, Sweet Chelsea
Paste: Amish Gold, Amish Paste, Jersey Devil, Opalka, Principe Borghese
Also, see our list of Spring Garden Market Tomato varieties.
* Many other varieties may also do well here in Santa Clara County. This list is based on UC Master Gardener trials, taste tests, and feedback from local growers.