When to Plant Salpiglossis in Bristol, 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.

In Bristol you can estimate when you can plant salpiglossis by referring to the USDA zone info.


Planting Calendar for Salpiglossis

Frost tolerance for salpiglossis: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Salpiglossis 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
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A good time to plant salpiglossis
Possibly ok, but a risky time to plant salpiglossis
Probably not a good time to plant salpiglossis

The earliest that you can plant salpiglossis in Bristol 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 salpiglossis and expect a good harvest is probably August. Any later than that and your salpiglossis may not have a chance to really do well. You can get started a couple of weeks earlier by starting your salpiglossis indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Bristol. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Bristol is an average the actual date of last frost is different every year. Half of the time in Bristol it frosts late in the year after April 15 so be sure to be ready to cover your salpiglossis in the event of a late frost.

USDA Zone Info for Bristol

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Bristol

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