When to Plant Salpiglossis in Pleasant Hill, CA

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 first chance to plant salpiglossis in Pleasant Hill can be figured out by checking out the USDA zone info.


Planting Calendar for Salpiglossis

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

Since salpiglossis are not cold tolerant it is important to wait until after all chance of frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
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A good time to plant salpiglossis
Possibly ok, but a risky time to plant salpiglossis
Probably not a good time to plant salpiglossis

The earliest that you can plant salpiglossis in Pleasant Hill 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 salpiglossis and expect a good harvest is probably September. You probably don't want to wait any later than that or else your salpiglossis may not have a chance to fully mature. Starting your salpiglossis indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Pleasant Hill. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Pleasant Hill is not always accurate the actual date of last frost is different every year. Since half of the time in Pleasant Hill there is a last frost after February 15 be ready to cover your salpiglossis in the event of a late frost.

USDA Zone Info for Pleasant Hill

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 Low25°F
Highest Expected Low30°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 Pleasant Hill

You may be interested in your other planting guides for Pleasant Hill.