One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Holtville can be reffered to in order to determine when it's a good idea to plant monkey flower.

Planting Calendar for Monkey Flower

Frost tolerance for monkey flower:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably a bad idea to plant monkey flower until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant monkey flower in Holtville is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant monkey flower and expect a good harvest is probably September. You probably don't want to wait any later than that or else your monkey flower may not have a chance to fully mature. Starting your monkey flower indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is January 31 in Holtville. In the coldest months of winter you can expect an average low temperature of 30°F.

Keep in mind that USDA zone info for Holtville is just an average and the actual date of last frost will vary from year to year. Half of the time in Holtville it frosts late in the year after January 31 so make sure that you are ready to cover your monkey flower in the event of a late frost.

USDA Zone Info for Holtville

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Holtville

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