frostdate name logo in white
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When to Plant Polka Dot Plant in New Castle, 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 looking at the USDA zone info for New Castle you will be able to determine when it's possible to plant polka dot plant.


Planting Calendar for Polka Dot Plant

Frost tolerance for polka dot plant: Not tolerant of frost.
When to plant: After the last frost has passed.

Polka Dot Plant do not do well in cold weather which tells us that you need to wait until it warms up after the last frost has passed before you can plant them.

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

The earliest that you can plant polka dot plant in New Castle is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant polka dot plant and expect a good harvest is probably August. You probably don't want to wait any later than that or else your polka dot plant may not have a chance to grow to maturity. If you are starting your polka dot plant indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in New Castle. It might get as low as -10°F during the coldest months of winter.

Remember that USDA zone info for New Castle is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in New Castle it frosts late in the year after April 15 so make sure that you are ready to cover your polka dot plant if you have one of those late frosts.

USDA Zone Info for New Castle

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 New Castle

You may be interested in your other planting guides for New Castle.