When to Plant Creeping Zinnia in Delta, CO

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when to plant creeping zinnia in Delta by looking at the USDA zone info.


Planting Calendar for Creeping Zinnia

Frost tolerance for creeping zinnia: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

You can plant creeping zinnia a bit earlier in the year because they are barely cold tolerant.

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

The earliest that you can plant creeping zinnia in Delta 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 creeping zinnia and expect a good harvest is probably August. Any later than that and your creeping zinnia may not have a chance to really do well. You can get started a couple of weeks earlier by starting your creeping zinnia indoors.

Last Frost Date

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

Just be sure to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Delta and it can change quite a bit from year to year. Half of the time in Delta last frost occurs after April 15 so always be ready to cover your creeping zinnia in the event of one of those late frosts.

USDA Zone Info for Delta

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 Low0°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 Delta

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