Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Leeds should be looked at to estimate when it's the best time to plant salpiglossis.

Planting Calendar for Salpiglossis

Frost tolerance for salpiglossis:	Not tolerant of frost.
When to plant:	After the last frost.

It's not a good idea to plant salpiglossis until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant salpiglossis in Leeds 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. Starting your salpiglossis indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Leeds. In the coldest months of winter you should expect an average low temperature of 5°F.

Since the USDA zone info for Leeds is an average the actual date of last frost is different every year. Half of the time in Leeds you get surprised by a frost after April 15 so make sure that you are ready to protect your salpiglossis in the event of one of those late frosts.

USDA Zone Info for Leeds

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Leeds

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