Boston Fern is grown for its foliage and the structure it brings to a planting. It's hardy across USDA zones 10 through 12, shrugs off deer and grows just as well in a container as in the ground.
Boston Fern — the short answer
Boston Fern: grown in zones 10–12, shade, pH 5–7.
- USDA zones
- 10–12
- Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
- Soil pH
- 5–7
- Growable Ground Plant Database
- Sun
- Shade
- Growable Ground Plant Database
- Frost-kill temperature
- 35°F
- Growable Ground Plant Database
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — each tile names its own row's source, because per-field provenance varies.
Score Boston Fern on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether boston fern actually takes — and those shift from one yard to the next. Enter your address and we'll score boston fern against your land's real conditions.
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What Boston Fern is
Boston Fern grows as a perennial and reaches around three feet at maturity. It's also deer-resistant and well suited to containers.
How to grow Boston Fern
Boston Fern grows in USDA zones 10 through 12. Boston Fern does best in shade — at least 2 hours of direct sun a day — and soil from pH 5 to 7, on well-drained ground.
USDA Zones
10-12
USDA PHZM 2023
Soil pH
5 - 7
Growable Ground Plant Database
Sun
Shade
Growable Ground plant catalog
Drainage
well (dry spells)
Growable Ground plant catalog
Frost Kill Temperature
35°F
Where cold starts killing growing tissue. Not a winter-survival floor — a dormant perennial takes far colder, which its hardiness zone answers.
Growable Ground Plant Database
Mature Height
3 ft
Growable Ground plant catalog
Start the season right
Plant boston fern in shade with at least 2 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Boston Fern prefers pH 5 to 7 (Growable Ground Plant Database). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.
Water steadily
Keep the root zone evenly moist through establishment. A 2–3 inch mulch layer holds moisture without waterlogging.
Keep it in good form
Prune boston fern to shape as it grows; the reward is its foliage and structure, not a harvest, so steady upkeep is the whole job.
Where Boston Fern thrives
Boston Fern is hardy across USDA zones 10 through 12. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.
A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 10–12 spans average winter lows from 30°F to 60°F (USDA PHZM 2023). Across the 50 states and DC, that band covers none outright but splits 8 down the middle — and which side of that line your land sits on changes the answer.
Zones 10–12·Where Boston Fern growsOpen map →
Where Boston Fern stands, state by state
Boston Fern is rated for zones 10–12 — a cold floor USDA puts at 30 to 40°F. Across the 50 states and DC, 0 sit fully inside that band, the line runs through 8 more, and 43 sit outside it — and inside every split state, the same line runs on at county grain.
The line runs through
8 states
- California · zones 4b-11a
- Nevada · zones 4a-10a
- Arizona · zones 5b-10b
3 of 8 shown
Boston Fern’s band covers part of each of these states — which side of the line your county sits on changes the answer, and each state page draws it.
State zone extents: USDA Plant Hardiness Zone Map (PHZM) 2023. A zone is a 10°F band of average annual extreme minimum temperature, so a state that splits the band contains the boundary — its own page draws the county line, and a parcel report resolves which side your land sits on.
What grows around Boston Fern
Growing guides for boston fern
In rotation planning, boston fern counts as a Other — beds recover best when other crops don’t follow each other in the same spot year over year. (Growable Ground derivation — crop-rotation group from botanical family)
Related plants in houseplant/patio
Good to know
Good news for pet owners — boston fern isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Boston Fern isn't classified as a notable pollinator plant in our data — pair it with high-value bloomers nearby to feed bees.
Your land is one point inside Boston Fern's range
This page resolves to the species. Your state page draws the county line, and a report reads the parcel — the soil pH, drainage, sun, and frost dates on your exact ground, which no species average can see.
See if Boston Fern will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether boston fern actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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How we know this about Boston Fern
The figures above are cited per row, not per site: the pH band names this plant’s own source column, the three temperature figures each carry their own, and days-to-maturity cites the publication that actually lists it. All of it comes from the Growable Ground Plant Database — a compilation over FAO ECOCROP, USDA PLANTS, and university Extension sources, published openly with per-field provenance.
Grounded inUSDA PLANTS Database•USDA PHZM•ASPCA
Frequently asked questions
Can I grow Boston Fern in my zone?
Boston Fern grows in USDA hardiness zones 10 through 12 (USDA PHZM 2023). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
When should you plant Boston Fern?
Most growers plant boston fern after the last spring frost, once the soil has warmed. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Boston Fern need?
Boston Fern is shade-tolerant — it gets by on as little as 2 hours of direct sun, so it earns a place most vegetables can't use. A north-facing strip or the ground under a leafy canopy is right where it belongs. A Growable Ground report shows which corners of your land stay shaded through the day, turning those dim spots into planting spots.
What soil does Boston Fern need?
Boston Fern prefers soil pH 5 to 7, on well-drained ground (Growable Ground Plant Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Boston Fern attract pollinators?
Boston Fern isn't classified as a notable pollinator plant in our data. Pairing it with high-value bloomers nearby keeps bees and butterflies fed.
Is Boston Fern safe for pets?
Boston Fern is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)