The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when to plant baby's breath in Lake Oswego by using the USDA zone info.

Planting Calendar for Baby's Breath

Frost tolerance for baby's breath:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since baby's breath are moderately cold tolerant you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant baby's breath in Lake Oswego 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 baby's breath and expect a good harvest is probably September. If you wait any later than that and your baby's breath may not have a chance to fully mature. Starting your baby's breath indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Lake Oswego the average date of last frost happens on March 15. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Lake Oswego is an average the actual date of last frost changes from year to year. Since half of the time in Lake Oswego you get a frost after March 15 be ready to cover your baby's breath in the event of a late frost.

USDA Zone Info for Lake Oswego

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 Lake Oswego

You may be interested in your other planting guides for Lake Oswego.