When to Plant Skullcap in Menlo Park, CA

Before planting it is a good idea to find your USDA Zone info to determine 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 best time to plant skullcap in Menlo Park can be estimated by checking out the USDA zone info.


Planting Calendar for Skullcap

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

Skullcap require warm weather which means that it's necessary to wait until it warms up after all chance of frost has passed before you can plant them.

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

The earliest that you can plant skullcap in Menlo Park 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 skullcap and expect a good harvest is probably September. If you wait any later than that and your skullcap may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your skullcap indoors.

Last Frost Date

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

Since the USDA zone info for Menlo Park is not always accurate the actual date of last frost is different every year. Since half of the time in Menlo Park you get surprised by a frost after February 15 be ready to protect your skullcap in the event of a late frost.

USDA Zone Info for Menlo Park

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 Menlo Park

You may be interested in your other planting guides for Menlo Park.