When to Plant Primroses in Grand Island, NE

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.

One way of estimating when to plant primroses is to check out the USDA zone info for Grand Island.


Planting Calendar for Primroses

Frost tolerance for primroses: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

Since primroses are very cold tolerant you can plant them a lot earlier in the year than other frost tender plants.

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

The earliest that you can plant primroses in Grand Island 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 primroses and expect a good harvest is probably September. If you wait any later than that and your primroses may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your primroses indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Grand Island. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Grand Island is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Grand Island it frosts late in the year after April 15 so be sure to be ready to protect your primroses if you have a surprise late frost.

USDA Zone Info for Grand Island

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°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 -10°F.

Plants to Grow in Grand Island

You may be interested in your other planting guides for Grand Island.