One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant chinese chives in Renton should be estimated by looking at the USDA zone info.

Planting Calendar for Chinese chives

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

Chinese chives do well in moderate cold which means that you can get them planted earlier than more sensitive plants.

The earliest that you can plant chinese chives in Renton 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 chinese chives and expect a good harvest is probably September. If you wait any later than that and your chinese chives may not have a chance to fully mature. You can get started a little bit earlier by starting your chinese chives indoors.

Last Frost Date

On average the last frost is on March 15 in Renton. In the coldest months of winter you can expect an average low temperature of 15°F.

Since the USDA zone info for Renton is an average the actual date of last frost is different every year. Half of the time in Renton you get surprised by a frost after March 15 so always be ready to cover your chinese chives if you have a surprise late frost.

USDA Zone Info for Renton

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Renton

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