One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant nasturtium in Lathrop should be determined by referring to the USDA zone info.

Planting Calendar for Nasturtium

Frost tolerance for nasturtium:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably a bad idea to plant nasturtium until after the last frost has passed because they require warm weather.

The earliest that you can plant nasturtium in Lathrop is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant nasturtium and expect a good harvest is probably September. If you wait any later than that and your nasturtium may not have a chance to fully mature. You can get started a few weeks earlier by starting your nasturtium indoors.

Last Frost Date

In Lathrop the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Lathrop is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Lathrop it frosts late in the year after February 15 so just be sure to be ready to cover your nasturtium if you have a late frost.

USDA Zone Info for Lathrop

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Lathrop

You may be interested in your other planting guides for Lathrop.