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.

By checking out the USDA zone info for Helena you will be able to determine when it's a good idea to plant basket of gold.

Planting Calendar for Basket of Gold

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

Basket of Gold do well in cold weather which means that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant basket of gold in Helena is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant basket of gold and expect a good harvest is probably August. If you wait any later than that and your basket of gold may not have a chance to really do well. If you are starting your basket of gold indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Helena. In the coldest months of winter you can expect an average low temperature of -25°F.

Remember that USDA zone info for Helena is not always accurate and the actual date of last frost is different every year. Since half of the time in Helena there is a last frost after May 15 be ready to protect your basket of gold in the event of a surprise late frost.

USDA Zone Info for Helena

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Helena

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