When to Plant Arctotis in Lone Tree, CO

One of the first steps you take when you are getting a good idea 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.

The best time to plant arctotis in Lone Tree can be determined by looking at the USDA zone info.


Planting Calendar for Arctotis

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

Arctotis are one of those plants that can tolerate a little bit of cold weather which means that you can plant them earlier than other frost tender plants.

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

The earliest that you can plant arctotis 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 arctotis and expect a good harvest is probably September. Any later than that and your arctotis may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your arctotis indoors.

Last Frost Date

The average date of last frost is April 15 in Lone Tree. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Lone Tree may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Lone Tree you get a frost after April 15 so make sure that you are prepared to protect your arctotis 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.