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.

It's a good idea to figure out when it's possible to plant dill by referring to the USDA zone info for Columbia.

Planting Calendar for Dill

Frost tolerance for dill:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Dill can survive in a tiny bit of cold which tells us that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant dill in Columbia 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 dill and expect a good harvest is probably August. If you wait any later than that and your dill may not have a chance to fully mature. Starting your dill indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Columbia. You should expect an average low temperature of 0°F in the coldest months of winter.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Columbia and it will vary from year to year. Half of the time in Columbia there is a last frost after April 15 so make sure that you are prepared to cover your dill in the event of a surprise late frost.

USDA Zone Info for Columbia

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Columbia

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