When to Plant Pincushion Flower in Lone Tree, CO

One of the first steps you take when you are determining 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.

You will be able to estimate when you can plant pincushion flower by checking out the USDA zone info for Lone Tree.


Planting Calendar for Pincushion Flower

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

Since pincushion flower are one of those plants that can tolerate a little bit of cold weather you can plant them a little earlier in the year than plants that are more sensitive to the cold.

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

The earliest that you can plant pincushion flower in Lone Tree 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 pincushion flower and expect a good harvest is probably September. You probably don't want to wait any later than that or else your pincushion flower may not have a chance to really do well. Starting your pincushion flower indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Lone Tree. You can expect an average low temperature of -15°F in the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Lone Tree and it can change quite a bit from year to year. Half of the time in Lone Tree it frosts late in the year after April 15 so make sure that you are ready to cover your pincushion flower if you have a surprise late frost.

USDA Zone Info for Lone Tree

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 Lone Tree

You may be interested in your other planting guides for Lone Tree.