A tree's container size, measured in gallons, is the quickest way to know how big the tree is on the day you take it home. At Little Millican Farms a 15 gallon tree is usually around 5 to 7 feet tall, a 30 gallon around 7 to 8 feet, a 65 gallon around 10 to 12 feet, and a 200 gallon around 13 to 14 feet. Bigger containers mean a taller tree from day one, a heavier root ball, and more reason to ask for delivery.
Why does a tree farm sell trees by the gallon?#
Every tree at the farm on FM 2154, south of College Station, is grown in a container rather than dug out of a field. The farm describes its trees this way: grown in tubs so remain easy to deliver and plant . That matters for you in two ways.
First, a container-grown tree keeps its whole root system. Nothing is cut off when it leaves the farm, so the roots you plant are the roots it grew. Second, the container gives everyone a common language. "A 30 gallon live oak" means the same thing to you, to the farm and to whoever plants it, which is easier than guessing at trunk widths or branch spreads.
The container ladder at the farm runs from small 1 gallon liners up to 200 gallons. The top sizes are for spots where you want real height straight away; the middle of the ladder suits most yards.
What does each size look like when it leaves the farm?#
Here are the four sizes people ask about most, with the typical heights from the farm's own size guide. Heights are typical, not guaranteed: a narrow, upright species and a wide, spreading one can sit in the same size container and look quite different.
| Container | Typical height (farm size guide) | Good fit for |
|---|---|---|
| 15 gallon | about 5–7 ft | Several trees along a fence line, a spot you can reach with a wheelbarrow |
| 30 gallon | about 7–8 ft | A front-yard tree that already looks like a tree, a backyard shade tree |
| 65 gallon | about 10–12 ft | A focal tree by a patio or driveway, replacing a tree you lost |
| 200 gallon | about 13–14 ft | Instant presence at a new build or an event space; plan on delivery |
The farm also stocks the steps in between (1, 3, 5, 10, 45 and 100 gallons). The full ladder, with every height and the current bucket deposit amounts, is on the tree size guide.
Is a bigger container always the better buy?#
Not always. It depends on what you want the tree to do and how soon.
A 15 gallon tree is the practical choice when you are planting several at once, or planting somewhere you'll carry the tree in by hand. A smaller root ball is also less soil to soak through each time you water in the first summer.
A 30 gallon tree is a middle step. It has enough height to read as a real tree in a new yard without the weight of the top sizes.
A 65 gallon tree is for when height matters from the start: screening a neighbour's window, shading a west-facing wall, or filling the gap where an old tree came down.
A 200 gallon tree is at the top of the ladder. It gives you the most height on the first day, but its root ball is heavy and needs equipment to move. For most people that means asking the farm to deliver and plant it.
A useful rule of thumb: pick the size you can water well. The Texas A&M Forest Service's planting guidance ties watering to trunk diameter and recommends watering new trees for at least their first two years, so a thicker trunk means a bigger weekly commitment.
How do I read a container tree before I buy it?#
Walking the rows is the best way to choose. A few things to look at while you're there:
- The trunk flare. You should be able to find where the trunk widens into the roots. When you plant, that flare sits at or just above ground level, not buried.
- The canopy shape. Look at the tree from two sides. You want a crown that looks balanced for its species.
- The fit with your spot. Think about the mature tree, not the one in the container. A live oak, for example, can spread far wider than it grows tall (the Forest Service lists its mature width at about twice its height), so give it room from the house and from overhead lines.
- The roots, at planting time. When the container comes off, roots circling the outside of the root ball should be loosened or cut so they grow outward. The Forest Service's planting page advises removing roots that are crushed or girdling.
If you're not sure between two sizes, the farm's staff can suggest one once they know where the tree is going and what it needs to do.
What changes when you move from 65 to 200 gallons?#
This jump is bigger than the numbers make it look. The tree only gains a couple of feet of height on the size guide, but the root ball is roughly three times the volume. You're buying a much larger root system along with the height, and that root system has to be moved, planted and watered.
That extra root ball also changes the logistics:
- Access. Check the gate width and the path to the planting spot. A slope or a tight side yard is worth mentioning up front.
- The hole. Forest Service guidance is to dig the hole at least twice as wide as the root ball and no deeper than it. At 200 gallons that is a large hole.
- Water. Plan how you'll soak the root ball through the first summers, especially during a Brazos Valley July and August.
Because of all three, the top of the ladder is where delivery and planting help most. It is priced by your location, and the farm quotes it before anything is scheduled.
So which size should I choose?#
Start with the job the tree has to do, then work back to the size:
- Start a patio shade tree → 30 or 45 gallon
- Screen a view this year → 65 or 100 gallon
- Plant a row along a fence → 15 gallon, spaced for the mature width
- Make a statement at a new home → 100 or 200 gallon, with delivery
Then check which species are available in that size. Stock moves through the year, so email the tree farm to confirm what's in the rows today before you drive out.
Ready to pick a tree?#
Browse the kinds of trees the farm grows on the trees page, compare every size on the size guide, or ask for a quote with the species, size and your ZIP code. If you're planting this season, our guide to when to plant trees in the Brazos Valley explains why the cooler months give a new tree its best start.