When to Plant Sweet Sultan in Darby, PA

One of the first steps you take when you are making a decision about 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 can estimate when it's the best time to plant sweet sultan in Darby by referring to the USDA zone info.


Planting Calendar for Sweet Sultan

Frost tolerance for sweet sultan: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Since sweet sultan do ok in moderate cold you can plant them slightly earlier in the year than other frost tender plants.

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

The earliest that you can plant sweet sultan in Darby is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sweet sultan and expect a good harvest is probably August. If you wait any later than that and your sweet sultan may not have a chance to grow to maturity. Starting your sweet sultan indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Darby. It might get as low as 0°F during the coldest months of winter.

Always keep in mind that USDA zone info for Darby may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Darby it frosts late in the year after April 15 be ready to protect your sweet sultan in the event of a surprise late frost.

USDA Zone Info for Darby

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 Darby

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