One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to estimate when it's the best time to plant torch lilys by checking out the USDA zone info for Forest Grove.

Planting Calendar for Torch Lilys

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

Since torch lilys are very cold tolerant you can plant them quite a bit earlier in the year than other frost tender plants.

The earliest that you can plant torch lilys in Forest Grove 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 torch lilys and expect a good harvest is probably September. If you wait any later than that and your torch lilys may not have a chance to really do well. You can get started a little bit earlier by starting your torch lilys indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Forest Grove. In the coldest months of winter you should expect an average low temperature of 15°F.

Since the USDA zone info for Forest Grove is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Forest Grove you get a frost after March 15 be ready to protect your torch lilys in the event of a surprise late frost.

USDA Zone Info for Forest Grove

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Forest Grove

You may be interested in your other planting guides for Forest Grove.