Nobody has dated a single one of Fort Worth's big trees, and that turns out to be the interesting part. What the city has instead are measurements: a Texas Red Oak 622 centimetres round on a strip of grass beside a residential parkway, a national champion mesquite of a species ranchers pay to bulldoze, and the largest jujube on record in Texas. Four verified trees, two walkable pairs, and four open questions we would like a reader to help close.
0 of 4 visited in Fort Worth
1
The Jujube of the Botanic Garden
Jujube (Ziziphus jujuba) · Fort Worth Botanic Garden (Rock Springs section), Cultural District
The largest jujube on record in Texas is a Chinese fruit tree, and it stands about five metres off a road in Fort Worth. The Botanic Garden's champion runs to roughly 13.7 metres tall, which is a lot of height for a species usually kept as a squat orchard tree with the fruit inside a ladder's reach. Its trunk is 190 centimetres round. The Texas Big Tree Registry took that measurement in May 2020, and the regional tree trail that maps the garden's champions calls it the biggest of its kind recorded in the state.
Jujube has been grown in Chinese orchards for thousands of years and came to America as a crop rather than as an ornament. The fruit ripens green to a wrinkled red brown and eats like a dry apple, sweeter as it shrivels. Most people walking the corner of Old Garden Road and Rock Springs Road go past it without registering that they are looking at a state record, because it does not look like one: no buttressed trunk, no fence, no plaque doing the work for it.
Nobody has dated this tree and no source we can find has tried, so if you know when it went in, tell us. The garden charges 14 dollars for adults, which covers the whole grounds, and the champion trail passes several other record holders on the way round.
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2
The Ward Parkway Texas Red Oak
Texas Red Oak (Quercus buckleyi) · Park Hill, near TCU and Colonial Country Club
Its trunk is nearly two metres thick, and it grows on a strip of municipal grass beside a residential parkway. The Texas Red Oak on Ward Parkway measures 622 centimetres round, recorded by the Texas Big Tree Registry in July 2026, and the DFW National Champion Tree Trail lists it as stop two on a route of national title holders.
That size is the whole point. Texas red oak is a tree of limestone hills and canyon rims, a well shaped and fairly modest oak that people plant for its autumn colour rather than for bulk, and this one has grown to a girth the species is not supposed to reach. It did it in plain sight, in south Fort Worth between TCU and the Colonial Country Club, with no fence around it, no ticket, no visitor centre and nothing on the ground to tell you what you are standing under. The land is city owned and open in park hours. Traffic goes by four metres away.
Nobody has dated it. There is no ring count, no planting record and no growth figure for the species we would trust enough to work backwards from, so the age stays an open question rather than a number we made up. If you have seen one published, send it to us. The tape measure is the fact that holds, and at 622 centimetres it does not need any help.
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3
The Will Rogers Mesquite
Honey Mesquite (Prosopis glandulosa var. glandulosa) · Will Rogers Memorial Center, Cultural District
Texas ranchers spend real money bulldozing mesquite, and this one is a national champion. The honey mesquite on the Will Rogers Memorial Center grounds measures 478 centimetres round, taped by the Texas Big Tree Registry in June 2024; an ordinary mature mesquite rarely passes 200. The DFW National Champion Tree Trail names it the national champion of its species, and that crown is the trail's claim rather than a permanent title, because the American Forests register turns over and champions get dethroned. The trunk is not in dispute.
Mesquite is the tree Texas treats as a weed. It is thorny, crooked, deep rooted and almost impossible to kill, it takes over grazing land, it gets cleared by the acre, and then it ends up in the smoker giving brisket its flavour. Almost nothing is allowed to grow old. This one did, on city ground beside the halls where the Fort Worth Stock Show fills the complex every winter, watched by crowds who came for the livestock and walked past a record without looking up.
Nobody has recorded its age, and mesquite growth swings so hard with rainfall that a guess would be worth nothing. If you have seen a figure, tell us. It stands free and unfenced in the Cultural District, a short walk from the Botanic Garden.
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4
The Pioneers Rest Texas Ash
Texas Ash (Fraxinus texensis) · Near Sundance Square / downtown Fort Worth
Fort Worth pays to keep this one tree alive. In 2019 the city had the Texas Ash in Pioneers Rest Cemetery professionally injected against the emerald ash borer, the beetle that has been erasing ash trees across North America, with a commitment to come back and repeat the treatment every two or three years. That is an unusual amount of attention for a single ash, and it is the regional champion of its species, 213 centimetres round.
It grows in the oldest burial ground in the city, on Samuels Avenue, just over a kilometre northeast of downtown and walkable from it, among Fort Worth's earliest graves. The cemetery went onto the National Register of Historic Places in 2021. The ash stands over the kind of ground where the city's own beginning is written on the stones, and it is being kept going against a pest that has already killed hundreds of millions of its relatives.
Proof of life here is better than most: the Texas Big Tree Registry put a tape around this exact trunk in December 2025. Its age is unrecorded, and there is no growth figure for Texas ash we trust enough to work backwards from, so we leave it open rather than invent one.
The main gate is sometimes locked. There is a public entrance at the south end of the west fence, and daylight is the sensible time to go.
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