One of the best tools that you have as gardeners to help us determine 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.

By referring to the USDA zone info for Riverside you should be able to figure out when to plant neeps.

Planting Calendar for Neeps

Frost tolerance for neeps:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since neeps do not do well in cold weather you really should wait until after the last frost when the weather gets warmer before you can plant them.

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

The last month that you can plant neeps and expect a good harvest is probably September. Any later than that and your neeps may not have a chance to grow to maturity. If you are starting your neeps indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Riverside. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Riverside is not always accurate the actual date of last frost changes from year to year. Since half of the time in Riverside it frosts late in the year after February 15 be ready to protect your neeps in the event of a surprise late frost.

USDA Zone Info for Riverside

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Riverside

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