When to Plant Steirodiscus in Diamond Bar, CA

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Diamond Bar you should be able to estimate when to plant steirodiscus.

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Planting Calendar for Steirodiscus

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

Steirodiscus are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can start planting them slightly earlier than more sensitive plants.

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

The earliest that you can plant steirodiscus in Diamond Bar 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 steirodiscus and expect a good harvest is probably September. If you wait any later than that and your steirodiscus may not have a chance to really do well. Starting your steirodiscus indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Diamond Bar is just an average the actual date of last frost is different every year. Since half of the time in Diamond Bar you get a frost after January 31 be ready to cover your steirodiscus in the event of a late frost.

USDA Zone Info for Diamond Bar

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 Diamond Bar

You may be interested in your other planting guides for Diamond Bar.