Cold induced leaf drop in south Florida

[gnappi]

I was surprised at the substantial leaf drop in my yard from the cold nights last week. The Guava, Caimito, Soursop were hit the worst and I'm hoping they do not take downturn later this month.

Has anyone else had the same issues?

[roblack]

New growth on some of our garcinias took cold damage

[johnb51]

My experience with three soursop trees in SoFlo (Broward): soursop is cold (and wind) sensitive, varying in degree from tree to tree.  The leaf drop, which can be total, causes no damage to the tree itself, which will send out new leaves.  By late spring the tree should have all new leaves.

[Coconut Cream]

It's variable. I don't think the sever drought stress is helping either.

[Rico_Kryptic]

My soursop lost all its leaves first cold snap and by this snap it regrew most of them. I ended up wrapping it the last snap and didn't lose anything.

[kengland]

Same here, but more so around how poorly the weather system was forecast.

A lot of my young mangoes, while covered, were hammered. Not sure mangos should be grown in 9B/10A. Seems like a dip into the high 20s even for an hr is a recurring thing here in Plant City

[Orkine]

I recall an interesting explanation regarding Soursop’s cold vulnerability. 
it’s less about the frost itself and more about the tree "tiring itself out."

Unlike other varieties that stay dormant until spring, Soursops often try to regrow leaves immediately after a cold snap. If they shed and regrow multiple times in one winter, they exhaust their energy reserves. I believe this was from one of Har Mahdeem's talks, where he also noted their surprising resilience to 'wet feet.' He described a potted Soursop that lived in a tub of water for months; it struggled initially but eventually stabilized.

Bottom line: Expect your Soursop to shed leaves during cold spells. As long as it doesn't have to cycle through regrowth too many times before spring, it should pull through.

[Sevastopol]

I recall an interesting explanation regarding Soursop’s cold vulnerability. 
it’s less about the frost itself and more about the tree "tiring itself out."

Unlike other varieties that stay dormant until spring, Soursops often try to regrow leaves immediately after a cold snap. If they shed and regrow multiple times in one winter, they exhaust their energy reserves. I believe this was from one of Har Mahdeem's talks, where he also noted their surprising resilience to 'wet feet.' He described a potted Soursop that lived in a tub of water for months; it struggled initially but eventually stabilized.

Bottom line: Expect your Soursop to shed leaves during cold spells. As long as it doesn't have to cycle through regrowth too many times before spring, it should pull through.

I also saw Har say that. I had already given up on my soursop, but only cut it down just now.No more spending its time on a leaf dropping-growing cycle. In the trash.