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

You can figure out when it's a good idea to plant galium in Waterloo by looking at the USDA zone info.

Planting Calendar for Galium

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

Galium can survive in mild cold which means that you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant galium in Waterloo 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 galium and expect a good harvest is probably September. Any later than that and your galium may not have a chance to grow to maturity. If you are starting your galium indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Waterloo. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Waterloo may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Waterloo it frosts late in the year after April 15 so be sure to be ready to protect your galium if you have a surprise late frost.

USDA Zone Info for Waterloo

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 Waterloo

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