Grape Hyacinth is grown for its root. Notably, it stands up to deer. Its summer flowers are a moderate draw for honeybees and native bees, even though the root is the prize.
Zones
Data not available
pH Range
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Sun
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Days to Maturity
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Score Grape Hyacinth on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether grape hyacinth actually takes — and those shift from one yard to the next. Enter your address and we'll score grape hyacinth against your land's real conditions.
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What Grape Hyacinth is
Grape Hyacinth reaches around 6 inches at maturity. It blooms in summer. It's also deer-resistant.
How to grow Grape Hyacinth
USDA Zones
Data not available
USDA PHZM 2023
Soil pH
Data pending
USDA PLANTS Database
Sun
Data pending
plant_species_v5.csv
Drainage
Data pending
plant_species_v5.csv
Mature Height
0.5 ft
plant_species_v5.csv
Frost-Free Days
0+
plant_species_v5.csv
Sow directly
Sow grape hyacinth seed straight into the bed — root crops germinate fast and resent transplanting. Give them full sun.
Match the soil
Pull a soil test from your local Extension lab to confirm pH and drainage match grape hyacinth's needs before planting.
Water steadily
Keep the root zone evenly moist through establishment. Match watering to the plant's drainage preference and your local rainfall.
Harvest at maturity
Pull while roots are young and tender — sweeter than oversized ones. Local Cooperative Extension guides publish timing tables.
Good to know
One caution for pet owners — grape hyacinth is toxic to dogs and cats (mild severity). Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: ASPCA.)
Grape Hyacinth offers moderate value to bees and other pollinators. (Source: Xerces Society, Pollinator Partnership.)
Where Grape Hyacinth thrives
Whether grape hyacinth 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 Grape Hyacinth will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether grape hyacinth actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
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Frequently Asked Questions
Can I grow Grape Hyacinth in my zone?
Zone data for grape hyacinth is being finalized. A Growable Ground report checks your parcel's full suitability against federal soil, climate, and zone data.
When should you plant Grape Hyacinth?
Most growers plant grape hyacinth 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.
What soil does Grape Hyacinth need?
Specific pH data for grape hyacinth is pending. A soil test from your local Extension lab confirms what your site needs.
Does Grape Hyacinth attract pollinators?
Yes — grape hyacinth's flowers are a solid nectar source for honeybees and native bees (Xerces Society, Pollinator Partnership).
Is Grape Hyacinth safe for pets?
Grape Hyacinth is toxic to pets (dogs,cats) with mild severity. Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency.