A spiral is among the most expensive shapes in live topiary because it cannot be made quickly. The form is cut into a plant, and the plant then has to grow into it, a little at a time, over years. Ours start around $895 at 30 to 36 inches and go up to nine feet.
A live boxwood spiral. The shape is cut into the plant over years, with no frame underneath.
How a spiral is made
A spiral starts as a cone. The plant is grown dense enough to cut into, one stem is chosen as the leader, and the spiral is cut around it in a continuous band. In the gaps the foliage goes back to the stem. On the ridge it stays full.
The first cut sets the line. Every cut after that deepens the gap and thickens the ridge. The shape only reads properly once the ridge has grown dense enough to hold a clean edge, and that takes years.
So a spiral and a ball of the same height are not comparable prices. The ball is one continuous surface. Each cut must follow the spiral’s existing line.
What the sizes cost
Our live spirals start around $895 at 30 to 36 inches. The nine-foot specimens are quoted individually, with their freight.
Price climbs faster than height on this shape, for two reasons. A taller spiral has more turns, and every turn is more cutting. A taller spiral has also spent more years growing before it is ready to sell.
$895. A live boxwood spiral at 30 to 36 in.
Quoted. A smaller one at 24 in.
Quoted. Nine feet, quoted with its freight.
Preserved spirals are a different purchase at a different price, because the hand work is done once and then held. Ours go to 84 inches in juniper, and they live indoors only. Preserved topiary for interiors covers where they work.
Cutting one: follow the line you already have
Cut twice a year, the same as any boxwood: late spring once the first flush has firmed, and again in late summer.
On a ball you cut to a surface, so a small error blends in. On a spiral you cut to an edge, so the error stays. Take the gap back to the same depth each time and follow the existing line rather than improving it.
Do not tidy the ridge narrower. A ridge only gets thinner.
Cut the gap first, with hand shears, then dress the ridge. Cutting both in one pass with hedge shears flattens the spiral. It takes longer, and it is the difference between a spiral at year five and a lumpy cone.
The timing and feeding rules in what a live boxwood costs to keep apply here unchanged.
Where to put one: against something plain
A spiral is a vertical accent, so put it where the line can be seen. Against a busy border it disappears. Against a wall, a hedge face or a doorway it does what it is for.
Order entrance spirals together so they are selected as a pair. They are almost always bought in pairs for a doorway, and two spirals cut by different hands in different years will not match.
In a container, read the zone tables one step conservatively. A root ball above ground behaves roughly like one zone colder than the same plant in the earth. Boxwood in a planter sets out what that means in practice.
The live range is on the spiral category. If the position cannot keep a plant alive, the artificial spirals hold the same silhouette with no cutting at all.
Questions we get asked
Why are spiral topiaries more expensive than balls?
Because the shape has to be grown into over years. A ball is cut to one surface. A spiral is a line cut a little at a time, and a taller one has more turns and more seasons behind it.
How do I cut one without losing the shape?
Cut the gap first with hand shears, then dress the ridge. Cutting both in one pass with hedge shears is what flattens a spiral into a lumpy cone.
How often does it need cutting?
Twice a year, like any boxwood: late spring after the first flush firms, and late summer. Follow the existing line rather than improving it.
Can I buy a matched pair?
Yes. Order them together so they are selected as a pair. Two spirals cut by different hands in different years will not match, and a spiral is the shape where that shows most.
Is a preserved spiral the same thing?
It is the same shape, cut once and then held. The foliage is real, treated to last without water. It goes indoors only, and it needs no cutting at all.
