Sabal Uresana Bismarckia growth comparison 15 years

When I first moved to Florida, I planted a Bismarckia in mid2010 and a sabal uresana in summer 2011. Uresanas are often mentioned as alternatives to bismarckia in 9a. These palms have stood next to each other over the years making for an easy growth comparison. Bismarckias are generally regarded as fast growers and uresanas are said to be slow.

First, Bismarckia several months after planting a 5 gallon bought at a big box store. Everything but the spear had heavy mold spots so I kind of treated it as a rescue. It seems to have that purplish hue after winter that is often associalted with a whiter leaf. It adapted fast to sun after being tortured inside the box store with palms stacked in a pile around it. It put 5-6 new leaves out the first year.

late july 2010 bismarckia

then about a year later I planted a sabal uresana "icy blue" I bought from tejas tropicals in texas. It was a strap leafer and I put it in a pot. About 6 months later it was ready to go into the ground as the pot was root bound.

A little over 2 years later in sept 2013 both had grown well. IN this pic the uresana looks a bit bigger than it was (relatively) since it was closer to the observer. It had turned darker with less "icy blue" color but was clearly not just a green sabal. The uresana was about 6' overall and the Bismarckia was closer to 10' in this pic

At this point the bismarckia was trunking and growth was accelerating and here is the pic from june 2015. The uresana not trunking was putting more leaves for a bigger crown

About 4 years later the uresana had lengthened it leaves and had gone into trunking mode. It went skyward chasing the bismarckia but still 6-7 feet over all behind the biz in height

Last week I took another pic and noticed about a 10' gap even though the uresana had sped up and grown to about 25' tall. compared with 35' for the bismarckia

I thought it was interesting that the growth burst of each happened at trunking, as we are often told by the literature. Yes even sabal uresana grows well after trunking.

I also though it is interesting to note that Sabal Uresana has a wider crown, that was a surprise. I had always thought Bismarckia would be wider as it throws more shade but its a couple fee less in width of the crown. The Uresana crown is more open though, and it took a lot less damage than the Bismarckia in hurricane Milton(oct2024). Part of the lesser damage suffered by uresana could be due to less wind damage as there are higher wind velocities at height, but also part might be the Uresana having an open crown with smaller leaves that have less wind drag. I do think Uresanas will have more blue than mine in a drier hot climate. Bismarckias are very versatile, they don't need much fertilizer and mostly they are self shedding. Just keep them happy and the weevils wont come to dinner(I had a sick one attacked by weevils and killed). I treated the Uresana same as Bismarckia, limited fertilizer compared with my other palms The Uresana has persistent leaf bases which are still strongly attached near the ground. Since I do the trimming, I am happy that Uresana is a slower grower, as the Bismarckia is now too tall for me to trim from the ground. And the Bismarckia(female) is a mess, dropping 150-200 lbs of seed a year. I just got done raking up half a trash can full of Bismarckia fruits, and there is at least that much still hanging on the tree. Uresana has not fruited yet at 15 yrs. Sabals are notorious for liking heat to grow fast and they both had plenty of Florida heat. For those thinking about Sabal Uresana, its not Bismarckia fast but its more of a medium grower for me after trunking.