Taxodium Species, Mexican Cypress, Montezuma Bald Cypress

Taxodium mucronatum grows surprisingly well here in Salt Lake City, Utah (zone 7b). This tree is DEFINITELY much hardier than stated here...Read More and other websites as it’s growing just fine here in zone 7 with pretty much no issue. I would speculate it’s hardy to more like 0-5 F. There is a 50 foot plus tall specimen right down the street from me, with beautiful weeping branches and a large trunk with the slightest of knees. It seems that this tree is pretty drought tolerant seeing as they have it mixed in with yuccas and some agaves, but i’m sure they give it a little more water than those plants. It seems to also be able to take temps in the triple digits pretty dang well, it has gotten up to 108 once and stayed at around 103-105 for almost two weeks straight and still looks green and lush. And being Utah it will be that way every single summer and will continue to be that way until the very end of summer. This tree also stays pretty much evergreen here (unlike the Bald Cypress) unless it gets down to 5F which is pretty rare nowadays. One of the things I like the most about this tree is that it almost doesn’t even look like a conifer, it looks like a unique broadleaf evergreen tree until you get right up close to it. I would definitely recommend trying this tree in zone 7b and possibly even 7a if you live in a drier climate because it seems to add some hardiness on to it because of the lack of cold, and wet/damp temperatures in the winter, like on the east coast. but I wouldn’t be surprised if it survived there as well in zone 7. Beautiful tree!

We have a wonderful specimen growing in the center courtyard of the education building at UTPA in Edinburg Texas. It has grown taller th...Read Morean the 3 story building that surrounds it so it is at least 45 feet tall now.

There is a large montezuma cypress growing in clay topsoil on top of limestone/caliche base (or just straight into caliche? no idea) in n...Read Moreorth Texas. In the literature, they are not supposed to thrive beyond San Antonio but this tree apparently is thriving with no problem in this type of soil. There is a bald cypress next door from this tree doing poorly. It looks to me that it is having iron chlorosis problem??? There are many bald cypress like that in this area. I do not know why they keep planting them if they are not going to thrive. We also seem to have ice storm every year. The winter temperature sometimes get as low as 15*F but usually in the low 20s. There was 0*F weather in 1983 and 1989 but I don't know if this tree existed at that time. Anyway, it seems to do great here. Time will tell if mine will thrive in caliche soil.

There are actually some Montezuma cypress trees growing in New Mexico where the winters are much colder, way out of native range for these trees! I have some seedlings that was grown from seeds collected from New Mexico by a nursery.

In Brownsville, TX we have both mucronatum and distichum. the differences seem to be that the Montezuma Baldcypress has slightly shorter...Read More needles and is more evergreen and does not lose it's needles as much. The cones are a bit larger and the male flower racimes longer but the biggest difference is that the Montezuma baldcypress does not form the knees like the distichum does. The Montezuma grows faster but that may be mostly a function of the warmer climates without the shorter growing seasons experienced further north into the US by the diistichum. The Montezuma Baldcypress makes a fairly drought resistant landscape tree here and seems to survive the harsh conditions within green islands in Walmart parking lots. The tree loses its needles in the hotest droughtiest portion of the summer or during periods of tropical storms with salt-laden strong winds. With all of the interplanting of the two types here it seems like there are many crosses, except that there seem to be far less of them with the knee structure here than those in and noth of San Antonio, therefore mostly mucronatum are planted here in Brownsville.
Either variety should be planted more here especially around our numerous resacas(oxbow lakes left from previous paths of the Rio Grand River), to stabilize the banks. We use these trees to replant native vegetation around our resacas with the help of various EPA-USDA sponsored types of soil stabilization grants. The photo I put up is along the banks of a part of our Resaca De La Palma. Wherever people in the past have planted the invasive Salt-Cedars and Australian Pines along resacas they slowly should be replaced with Baldcypress, Montezuma Baldcypress(further back from the bank) and native Black Willow.