When to Plant Foxglove in Mill Creek, WA

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

The first opportunity to plant foxglove in Mill Creek should be figured out by using the USDA zone info.


Planting Calendar for Foxglove

Frost tolerance for foxglove: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

You can plant foxglove a little bit earlier in the year because they do well in moderate cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant foxglove
Possibly ok, but a risky time to plant foxglove
Probably not a good time to plant foxglove

The earliest that you can plant foxglove in Mill Creek 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 foxglove and expect a good harvest is probably September. You probably don't want to wait any later than that or else your foxglove may not have a chance to fully mature. If you are starting your foxglove indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Mill Creek. It might get as low as 15°F during the coldest months of winter.

It's important to remember that USDA zone info for Mill Creek is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Mill Creek there is a last frost after March 15 so make sure that you are prepared to protect your foxglove in the event of one of those late frosts.

USDA Zone Info for Mill Creek

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 Low15°F
Highest Expected Low20°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 Mill Creek

You may be interested in your other planting guides for Mill Creek.