One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

The first chance to plant gloriosa lily in Forest Grove can be determined by reviewing the USDA zone info.

Planting Calendar for Gloriosa Lily

Frost tolerance for gloriosa lily:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You really shouldn't plant gloriosa lily until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant gloriosa lily in Forest Grove is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant gloriosa lily and expect a good harvest is probably August. You probably don't want to wait any later than that or else your gloriosa lily may not have a chance to really do well. Starting your gloriosa lily indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on March 15 in Forest Grove. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Forest Grove may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Forest Grove you get surprised by a frost after March 15 so make sure that you are ready to cover your gloriosa lily if you have one of those late frosts.

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.