Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. 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 gloriosa lily in San Ramon can be estimated by reviewing the USDA zone info.

Planting Calendar for Gloriosa Lily

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

It's probably not a good idea to plant gloriosa lily until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant gloriosa lily in San Ramon 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 gloriosa lily and expect a good harvest is probably September. Any later than that and your gloriosa lily may not have a chance to really do well. You can get started a little bit earlier by starting your gloriosa lily indoors.

Last Frost Date

In San Ramon the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for San Ramon and it will vary from year to year. Half of the time in San Ramon you get surprised by a frost after February 15 so make sure that you are prepared to protect your gloriosa lily if you have one of those late frosts.

USDA Zone Info for San Ramon

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 San Ramon

You may be interested in your other planting guides for San Ramon.