When to Plant Dusty Miller in Portsmouth, NH

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of getting a good idea when it's the best time to plant dusty miller is to use the USDA zone info for Portsmouth.


Planting Calendar for Dusty Miller

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

Since dusty miller do well in cold you can plant them quite a bit earlier in the year than other plants that might not handle the cold.

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

The earliest that you can plant dusty miller in Portsmouth 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 dusty miller and expect a good harvest is probably September. If you wait any later than that and your dusty miller may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your dusty miller indoors.

Last Frost Date

The average date of last frost is April 15 in Portsmouth. In the coldest months of winter you can expect an average low temperature of -10°F.

Always keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Portsmouth and it can change quite a bit from year to year. Half of the time in Portsmouth you get surprised by a frost after April 15 so make sure that you are ready to protect your dusty miller if you have a late frost.

USDA Zone Info for Portsmouth

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Portsmouth

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