What "fast-growing" actually means for a hedge
Most people searching for a fast-growing hedge or fast-growing shrub aren't really asking how many feet a plant gains per year. They're asking a more specific question: how soon will this stop looking like a row of separate plants and start looking like a private yard?
That's a different measurement — lateral fill-in, not vertical height — and it's driven as much by starter size and spacing as by the species itself. Below is how the three plants we install most compare on both.
Clusia: the fastest option in South Florida heat
Clusia is the plant we reach for when speed is the priority in South Florida. In full sun with consistent watering during establishment, a 7-gallon Clusia hedge at correct spacing typically reads as a continuous screen within 6 to 9 months. Go up to 15-gallon starters and a tightly spaced hedge often looks finished from the day it's installed.
It's also one of the more forgiving fast-growers — dense, broad-leafed, and tolerant of the heat and salt air that slow down a lot of other plants. That combination is why it's our most-installed hedge south of Orlando.
Podocarpus: slower, but worth it for the look
Podocarpus grows more slowly than Clusia — the trade-off for its finer, more formal foliage. If your priority is genuinely the fastest possible fill-in, Clusia will usually get there first in the same climate. But Podocarpus handles cooler winters better, which is why it's the hedge we recommend more often in Central and North Florida, where Clusia can struggle with occasional cold snaps.
If you're choosing purely on speed and you're south of Orlando, Clusia wins. If you're further north, or you specifically want the tighter, more manicured look, the slightly slower growth is usually worth it.
Areca Palm: fast and tropical, different use case
Areca Palm grows quickly and densely once established, and it's a genuinely fast option for screening — but it fills in as a tropical, multi-stemmed clump rather than a tight formal wall. It's the right call when you want a lush, resort-style privacy screen around a pool or patio. It's not the plant to reach for if you want a crisp, straight hedge line along a property boundary — Clusia or Podocarpus does that job better.
The real lever: starter size, not species alone
Whichever plant you choose, the single biggest factor in how fast you get privacy is the gallon size you start with, not small differences in species growth rate. A 3-gallon hedge of any of these three plants will take a year or more to close fully. A 15 or 25-gallon hedge, correctly spaced, looks like a finished privacy hedge on install day — because you're buying the size instead of waiting for the plant to grow into it.
If your timeline is tight — you need privacy before a specific date, not eventually — the fastest real solution is usually buying a larger starter size, not searching for a faster-growing species.
Which one should you plant?
For the fastest fill-in in South Florida's heat: Clusia. For a more formal look, or for Central/North Florida where winters get cooler: Podocarpus. For a lush, tropical screen around a pool or patio rather than a straight hedge line: Areca Palm. Message us your city and what you're screening and we'll tell you the size that gets you there on the timeline you need.