Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant dahlia in Rancho Palos Verdes can be determined by checking out the USDA zone info.

Planting Calendar for Dahlia

Frost tolerance for dahlia:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since dahlia are not cold tolerant you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant dahlia in Rancho Palos Verdes 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 dahlia and expect a good harvest is probably September. If you wait any later than that and your dahlia may not have a chance to fully mature. If you are starting your dahlia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Rancho Palos Verdes the average date of last frost happens on January 31. It might get as low as 35°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Rancho Palos Verdes is an average and the actual date of last frost will vary from year to year. Since half of the time in Rancho Palos Verdes it frosts late in the year after January 31 be ready to protect your dahlia in the event of a late frost.

USDA Zone Info for Rancho Palos Verdes

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Rancho Palos Verdes

You may be interested in your other planting guides for Rancho Palos Verdes.