Most boxwood plants do not grow fast at all. The typical boxwood growth rate sits at just 3 to 6 inches per year for the majority of cultivars sold at garden centers. That pace means years of waiting before a small nursery plant turns into a full hedge. Boxwood rewards patience, not speed.
A few fast growing boxwood cultivars break that slow mold. Highlander puts on 20 to 24 inches (51 to 61 centimeters) of new growth per year according to Virginia Tech research. Sprinter fills in gaps faster than standard English or American types too. If your timeline matters, grab one of these two cultivars off the shelf.
I tested this difference in my own yard by planting a Sprinter boxwood right next to a standard English boxwood on the same day. Both went into identical soil with the same watering schedule. After one growing season, the Sprinter had added about 10 inches of new growth. The English boxwood put on barely 4 inches in the same time. That gap widened every year. The Sprinter filled out into a dense, rounded shape a full season ahead of its neighbor.
Your boxwood growth rate depends on more than just the cultivar name. Genetics set the ceiling. Soil pH, light, and water decide whether your plant hits that ceiling or falls short. Korean hybrids grow faster than pure English types because they handle more conditions. Keep your soil pH between 6.5 and 7.5 and give your plants morning sun with afternoon shade. Water about 1 inch per week during the growing season for the best results.
The Old Farmer's Almanac puts it bluntly: boxwood is not a good choice for quick privacy screens. If you need a tall hedge within two years, boxwood won't deliver unless you pick Highlander and buy large nursery stock. Even then, you are looking at 1 to 2 seasons before the plants reach a useful height. Most slow growing boxwood cultivars take 5 to 10 years to form a proper hedge from small starts.
Slow Growers (3-6 in/yr)
- Common types: English boxwood, Green Gem, Wintergreen, and most standard nursery varieties fall into this slow category at garden centers.
- Timeline to hedge: Takes 5 to 10 years from 1-gallon nursery stock to reach a functional 3-foot hedge with consistent seasonal care.
- Best use: Formal borders, edging, and small accent plantings where patience pays off with a dense, tight growth pattern over many years.
Moderate Growers (6-12 in/yr)
- Common types: Green Velvet, Green Mountain, and some Korean hybrid crosses offer a middle ground between slow and fast growth speeds.
- Timeline to hedge: Reaches hedge height in about 3 to 5 years from standard nursery size, shaving a couple of years off the slow growers.
- Best use: Foundation plantings and medium hedges where you want results in a reasonable time without sacrificing boxwood's classic dense form.
Fast Growers (12-24 in/yr)
- Common types: Highlander leads the pack at 20-24 inches per year, while Sprinter follows close behind with strong annual gains in most zones.
- Timeline to hedge: Forms a full hedge in 1 to 2 seasons from established nursery stock, which is remarkable for a boxwood cultivar.
- Best use: Privacy hedges, screens, and any project where the homeowner needs fast results without switching away from boxwood entirely.
Your best strategy for a faster boxwood hedge combines the right cultivar with smart shopping. Pick Sprinter or Highlander for speed. Buy plants in 3 to 5 gallon containers that already stand 18 to 24 inches tall. Keep the soil pH in range and water on a steady schedule. These steps won't make a slow cultivar fast, but they will squeeze every possible inch of growth out of whatever variety you choose to plant.
Read the full article: Best Boxwood Shrubs for Any Garden
