One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Kenai should be reffered to in order to figure out when to plant stoneseed.

Planting Calendar for Stoneseed

Frost tolerance for stoneseed:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since stoneseed require warm weather it's important to wait until after the last frost before you can plant them.

The earliest that you can plant stoneseed in Kenai is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant stoneseed and expect a good harvest is probably August. Any later than that and your stoneseed may not have a chance to grow to maturity. Starting your stoneseed indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Kenai. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Kenai is just an average the actual date of last frost will vary from year to year. Since half of the time in Kenai last frost occurs after May 15 be ready to cover your stoneseed in the event of a surprise late frost.

USDA Zone Info for Kenai

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Kenai

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