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When to Plant Bleeding Hearts in Portola Valley, CA

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 possible to plant bleeding hearts by using the USDA zone info for Portola Valley.


Planting Calendar for Bleeding Hearts

Frost tolerance for bleeding hearts: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Bleeding Hearts do ok in moderate cold which means that you can start planting them slightly earlier than plants that are more sensitive to the cold.

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

The earliest that you can plant bleeding hearts in Portola Valley 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 bleeding hearts and expect a good harvest is probably September. Any later than that and your bleeding hearts may not have a chance to grow to maturity. You can get started a little bit earlier by starting your bleeding hearts indoors.

Last Frost Date

In Portola Valley the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Portola Valley and it changes from year to year. Half of the time in Portola Valley last frost occurs after January 31 so make sure that you are ready to protect your bleeding hearts in the event of a surprise late frost.

USDA Zone Info for Portola Valley

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 Low30°F
Highest Expected Low35°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 Portola Valley

You may be interested in your other planting guides for Portola Valley.