The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of determining when to plant lavender is to consult the USDA zone info for Irving.

Planting Calendar for Lavender

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

Since lavender are one of those plants that can tolerate a little bit of cold weather you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant lavender in Irving 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 lavender and expect a good harvest is probably September. If you wait any later than that and your lavender may not have a chance to really do well. Starting your lavender indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Irving. In the coldest months of winter you can expect an average low temperature of 10°F.

Since the USDA zone info for Irving is just an average the actual date of last frost will vary from year to year. Since half of the time in Irving you get surprised by a frost after March 15 be ready to cover your lavender in the event of a late frost.

USDA Zone Info for Irving

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Irving

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