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 best time to plant nasturtium in Ellensburg should be figured out by using the USDA zone info.

Planting Calendar for Nasturtium

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

Nasturtium do not do well in cold weather which means that it is necessary to wait until it warms up after the last frost before you can plant them.

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

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

Last Frost Date

The average date of last frost is April 15 in Ellensburg. It might get as low as -5°F during the coldest months of winter.

Keep in mind that USDA zone info for Ellensburg may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Ellensburg there is a last frost after April 15 so just be sure to be ready to protect your nasturtium in the event of a late frost.

USDA Zone Info for Ellensburg

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Ellensburg

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