When to Plant Romanesco in Johnstown, PA

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. 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 Johnstown it's a good idea to figure out when it's the best time to plant romanesco.


Planting Calendar for Romanesco

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

Romanesco tend to make it in mild cold which means that you can plant them just a bit earlier in the year than more sensitive plants.

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

The earliest that you can plant romanesco in Johnstown 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 romanesco and expect a good harvest is probably September. If you wait any later than that and your romanesco may not have a chance to really do well. You can get started a little bit earlier by starting your romanesco indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Johnstown. You should expect an average low temperature of -10°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 Johnstown and it will vary from year to year. Since half of the time in Johnstown you get surprised by a frost after April 15 be ready to cover your romanesco if you have a late frost.

USDA Zone Info for Johnstown

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Johnstown

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