One of the best tools that you have as gardeners to help us figure out 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.

By looking at the USDA zone info for Valparaiso you will be able to estimate when it's possible to plant tritoma.

Planting Calendar for Tritoma

Frost tolerance for tritoma:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Tritoma tend to make it in pretty solid cold which tells us that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant tritoma in Valparaiso 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 tritoma and expect a good harvest is probably September. You probably don't want to wait any later than that or else your tritoma may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your tritoma indoors.

Last Frost Date

In Valparaiso the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Valparaiso may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Valparaiso there is a last frost after April 15 so be sure to be ready to protect your tritoma in the event of a surprise late frost.

USDA Zone Info for Valparaiso

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Valparaiso

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