Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Hartford you can estimate when it's the best time to plant scabiosa by looking at the USDA zone info.

Planting Calendar for Scabiosa

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

Scabiosa do well in mild cold which tells us that you can plant them a little earlier in the year than other plants that might not handle the cold.

The earliest that you can plant scabiosa in Hartford 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 scabiosa and expect a good harvest is probably September. If you wait any later than that and your scabiosa may not have a chance to really do well. If you are starting your scabiosa indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Hartford the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -20°F.

Since the USDA zone info for Hartford is just an average the actual date of last frost is different every year. Since half of the time in Hartford you get surprised by a frost after April 15 be ready to cover your scabiosa in the event of a surprise late frost.

USDA Zone Info for Hartford

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Hartford

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