When to Plant Lavender in Newton, IA

One of the first steps you take when you are estimating your gardening schedule is find your 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 earliest that you can plant lavender in Newton can be estimated by checking out the USDA zone info.


Planting Calendar for Lavender

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

You can plant lavender a bit earlier in the year because they are moderately cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant lavender
Possibly ok, but a risky time to plant lavender
Probably not a good time to plant lavender

The earliest that you can plant lavender in Newton 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 fully mature. You can get started a few weeks earlier by starting your lavender indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Newton is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Newton there is a last frost after April 15 so make sure that you are prepared to protect your lavender in the event of a late frost.

USDA Zone Info for Newton

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 Newton

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