One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Colby should be read to estimate when it's a good idea to plant dracaena.

Planting Calendar for Dracaena

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

Dracaena do well in cold which tells us that you can start planting them much earlier than more sensitive plants.

The earliest that you can plant dracaena in Colby 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 dracaena and expect a good harvest is probably September. You probably don't want to wait any later than that or else your dracaena may not have a chance to grow to maturity. If you are starting your dracaena indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Colby may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Colby last frost occurs after April 15 be ready to protect your dracaena if you have a surprise late frost.

USDA Zone Info for Colby

Here is the info for USDA Zone 5b.

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

Plants to Grow in Colby

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