Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Zeeland you can figure out when it's possible to plant alyssum by referring to the USDA zone info.

Planting Calendar for Alyssum

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

Alyssum are one of those plants that can tolerate quite a bit of cold weather which tells us that you can get them planted much earlier than more sensitive plants.

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

Last Frost Date

On average the last frost is on April 15 in Zeeland. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Zeeland is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Zeeland you get surprised by a frost after April 15 so be sure to be ready to protect your alyssum in the event of one of those late frosts.

USDA Zone Info for Zeeland

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 Zeeland

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