Blackberry is a perennial grown for its fruit, ready to harvest about one year after planting. It's hardy across USDA zones 5 through 8 and grows just as well in a container as in the ground. Its late spring flowers are a real draw for honeybees, native bees, and butterflies, even though the fruit is the prize.
Blackberry — the short answer
Blackberry: grown in zones 5–8, part sun, pH 5.5–7, ~1 yr to first harvest. It also needs ~300 winter chill hours to fruit (Mississippi State University Extension P3067).
- USDA zones
- 5–8
- 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
- 5.5–7
- Growable Ground Plant Database
- Sun
- Part Sun
- Growable Ground Plant Database
- To First Harvest
- ~1 yr
- WSU-TFREC; PNW-Berry
- Frost-kill temperature
- 0°F
- Growable Ground Plant Database
- Winter chill needed
- ~300 hrs
- Mississippi State University Extension P3067
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.
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What Blackberry is
Blackberry grows as a perennial and reaches around six feet at maturity. It blooms white in late spring. It's also well suited to containers.
How to grow Blackberry
Blackberry grows in USDA zones 5 through 8 and is ready to harvest about one year after planting. Blackberry does best in part sun — at least 4 hours of direct sun a day — and soil from pH 5.5 to 7, on well-drained ground. It needs around 1,400 growing degree days to mature and about 300 hours of winter chill to set fruit, which is why climate matters as much as soil.
USDA Zones
5-8
USDA PHZM 2023
Soil pH
5.5 - 7
Growable Ground Plant Database
Sun
Part Sun
Growable Ground plant catalog
Drainage
well (dry spells)
Growable Ground plant catalog
Frost Kill Temperature
0°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
To First Harvest
~1 year
Blackberry; low-chill cultivar typical for trailing types. ~1 yr from canes; floricane-bearing (fruits on 2nd-yr canes).
WSU-TFREC; PNW-Berry
GDD Required
1400+
Growing degree-days of accumulated warmth it needs to mature — humid summers reach this faster than cool coastal ones.
Growable Ground plant catalog
Mature Height
6 ft
Growable Ground plant catalog
Chill Hours
300+
Winter hours below ~45°F it needs to fruit — too-mild winters can leave it bloom-shy.
Growable Ground plant catalog
Frost-Free Days
0+
The frost-free stretch it needs start to finish — short-season areas may need an indoor head start.
Growable Ground plant catalog
Start the season right
Plant blackberry in part sun with at least 4 hours of direct sun. It grows in the cool halves of the year, so sow it in spring or late summer rather than waiting for midsummer heat.
Match the soil
Blackberry prefers pH 5.5 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.
Harvest at maturity
Blackberry is ready about one year after planting (WSU-TFREC; PNW-Berry). Pick when the fruit is full-colored and parts easily from the stem.
Where Blackberry thrives
Blackberry is hardy across USDA zones 5 through 8. 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 5–8 spans average winter lows from -20°F to 20°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 19 outright and splits 31 more down the middle — and which side of that line your land sits on changes the answer.
Zones 5–8·Where Blackberry growsOpen map →
Where Blackberry stands, state by state
Blackberry is rated for zones 5–8 — a cold floor USDA puts at -20 to -10°F. Across the 50 states and DC, 19 sit fully inside that band, the line runs through 31 more, and 1 sits outside it — and inside every split state, the same line runs on at county grain.
Fully inside zones 5–8
19 states
3 of 19 shown
The line runs through
31 states
3 of 31 shown
Blackberry’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.
Outside zones 5–8
1 state
- North Dakota · zones 3b-4b
Winter cold is the limit here — the same plant often works in a container that comes under cover. Each link is that state’s own growing hub.
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 Blackberry
Growing guides for blackberry
In rotation planning, blackberry 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)
Good to know
Good news for pet owners — blackberry isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Blackberry is a standout pollinator plant — high value to bees and other pollinators. (Source: Xerces Society.)
Before you harvest blackberry, know your soil
Anything you grow to eat takes up what's in the ground it grows in, so it's worth knowing what's documented near you before you plant blackberry for food. Our free screen reads 9 federal source types across roughly 1.8M indexed sites and shows which sit near your address and which way they drain. It's a screening estimate from public records and proximity — not a soil test — so a nearby record means a soil test is worth it, not that your soil is unsafe.
Your land is one point inside Blackberry'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 Blackberry will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether blackberry 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 Blackberry
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 Blackberry in my zone?
Blackberry grows in USDA hardiness zones 5 through 8 (USDA PHZM 2023). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
How long does Blackberry take to grow?
Blackberry is ready to harvest about one year after planting (WSU-TFREC; PNW-Berry). Your local frost dates and soil temperature move that window earlier or later.
When should you plant Blackberry?
Blackberry is a cool-season crop, so it goes in during the cool halves of the year — early spring, and again in late summer for a fall planting — rather than at the height of summer heat. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Blackberry need?
Blackberry does well in partial sun — around 4 hours of direct sun, and it takes some afternoon shade in stride. That flexibility makes it a good match for a bed the house or a nearby tree shades for part of the day. A Growable Ground report maps how the sun actually falls on your land, hour by hour, so you can set it where the light lines up.
What soil does Blackberry need?
Blackberry prefers soil pH 5.5 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 Blackberry attract pollinators?
Yes — blackberry's flowers are a strong nectar and pollen source for honeybees, native bees, and butterflies. (Source: Xerces Society.)
Is Blackberry safe for pets?
Blackberry is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)