Blackberry is a perennial grown for its fruit, ready to harvest about one year after planting. Notably, it 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.
Zones
Data not available
pH Range
5.5-7
Sun
Full Sun
To First Harvest
~1 yr
Score Blackberry on your exact land.
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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 is ready to harvest about one year after planting. Blackberry does best in full sun — at least 6 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
Data not available
USDA PHZM 2023
Soil pH
5.5 - 7
USDA PLANTS Database
Sun
Full Sun
plant_species_v5.csv
Drainage
well (dry spells)
plant_species_v5.csv
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+
plant_species_v5.csv
Mature Height
6 ft
plant_species_v5.csv
Chill Hours
300+
plant_species_v5.csv
Frost-Free Days
0+
plant_species_v5.csv
Start the season right
Plant blackberry in full sun with at least 6 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Blackberry prefers pH 5.5 to 7 (USDA PLANTS 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.
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, Pollinator Partnership.)
Where Blackberry thrives
Whether blackberry thrives on a given site comes down to its soil pH, drainage, sun, and frost dates — the conditions that vary parcel to parcel.
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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Frequently Asked Questions
Can I grow Blackberry in my zone?
Zone data for blackberry is being finalized. A Growable Ground report checks your parcel's full suitability against federal soil, climate, and zone data.
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?
Most growers plant blackberry 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 Blackberry need?
Blackberry needs full sun — a spot that catches at least 6 hours of direct summer sun a day. In more shade it still grows, but usually gives a smaller, later crop. The catch is that a yard rarely gets even light everywhere — a fence, the house, or one tall tree can quietly take those hours. A Growable Ground report reads the real sun-hours across your land, canopy and buildings included, so you can pick the brightest bed before you plant.
What soil does Blackberry need?
Blackberry prefers soil pH 5.5 to 7, on well-drained ground (USDA PLANTS 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 (Xerces Society, Pollinator Partnership).
Is Blackberry safe for pets?
Blackberry is not known to be toxic to dogs or cats based on available data (ASPCA). Always supervise pets around new plantings.