Before planting it is a good idea to find your USDA Zone info to estimate 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.

By looking at the USDA zone info for Healdsburg it's a good idea to determine when it's a good idea to plant mecardonia.

Planting Calendar for Mecardonia

Frost tolerance for mecardonia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Mecardonia do not do well in cold weather which means that it's important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant mecardonia in Healdsburg 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 mecardonia and expect a good harvest is probably September. If you wait any later than that and your mecardonia may not have a chance to fully mature. You can get started a few weeks earlier by starting your mecardonia indoors.

Last Frost Date

The average date of last frost is February 15 in Healdsburg. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that USDA zone info for Healdsburg is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Healdsburg you get surprised by a frost after February 15 be ready to cover your mecardonia if you have a late frost.

USDA Zone Info for Healdsburg

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 Low	25°F
Highest Expected Low	30°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 Healdsburg

You may be interested in your other planting guides for Healdsburg.