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.

You should be able to estimate when it's a good idea to plant scaevola by reviewing the USDA zone info for Paso Robles.

Planting Calendar for Scaevola

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

You really shouldn't plant scaevola until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant scaevola in Paso Robles is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant scaevola and expect a good harvest is probably August. You probably don't want to wait any later than that or else your scaevola may not have a chance to fully mature. You can get started a little bit earlier by starting your scaevola indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Paso Robles. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Paso Robles is not always accurate the actual date of last frost changes from year to year. Half of the time in Paso Robles last frost occurs after March 15 so make sure that you are ready to cover your scaevola if you have a surprise late frost.

USDA Zone Info for Paso Robles

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Paso Robles

You may be interested in your other planting guides for Paso Robles.