Since when do we have a freeze warning? I understand that the low should be around 40 +/- a degree.

This is something I've tried to tell people with little success. The average last freeze date for Memphis is March 15th, not April 15th. The All-Time latest record freeze in Memphis history is April 16th. I really don't know where the April 15th average last freeze date came from.

Detailed Forecast for Memphis, Tennessee

Today
Partly
Cloudy
High 59°F

Mostly cloudy with chance of sprinkles in the morning... Then partly cloudy in the afternoon. Breezy. Much cooler. Highs in the upper 50s. Northwest winds 15 to 20 mph with gusts to near 30 mph.
Tonight
Clear
Low 35°F
Scattered frost late in the night. Clear...Colder. Lows in the mid 30s. North winds 10 to 15 mph.

Here is a link that might be useful: Weather

Suffice to say, colder than usual. BRRR! I am currently getting those sprinkles in midtown. I agree with the earlier planting date. By the first week of April, I've put my caladiums out and the annuals go out earlier. Of course, midtown stays a little warmer.

Hey Midtowner! Long time no see(grin). Now that the weekend is past, how does your garden? DeltaTropics was right, we didn't have a bad night. I have mostly cold tolerant perennials and annuals out right now, so every thing was fine for me. I am waiting until next week to start my zinnias and tithonia, although I won't see a reward from the tiths until August or maybe September. I'm aiming to come see your garden as soon as I finish digging around in my own!

Leigh