Gladiolus is a perennial grown for its root. Its summer flowers are a moderate draw for honeybees, native bees, and butterflies, even though the root is the prize.
Score Gladiolus on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether gladiolus actually takes — and those shift from one yard to the next. Enter your address and we'll score gladiolus against your land's real conditions.
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What Gladiolus is
Gladiolus grows as a perennial and reaches around four feet at maturity. It blooms in summer.
How to grow Gladiolus
USDA Zones
Data pending
Soil pH
Data pending
Sun
Data pending
Growable Ground plant catalog
Drainage
Data pending
Growable Ground plant catalog
Mature Height
4 ft
Growable Ground plant catalog
Sow directly
Sow gladiolus 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 gladiolus'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.
Where Gladiolus thrives
Whether gladiolus thrives on a given site comes down to its soil pH, drainage, sun, and frost dates — the conditions that vary parcel to parcel.
What grows around Gladiolus
Growing guides for gladiolus
In rotation planning, gladiolus 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 perennial flower
Good to know
Good news for pet owners — gladiolus isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Gladiolus offers moderate value to bees and other pollinators. (Source: Pollinator Partnership.)
Your land is one point inside Gladiolus'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 Gladiolus will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether gladiolus 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 Gladiolus
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 Gladiolus in my zone?
Zone data for gladiolus is being finalized. A Growable Ground report checks your parcel's full suitability against federal soil, climate, and zone data.
When should you plant Gladiolus?
Time gladiolus to your own season rather than the calendar. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
What soil does Gladiolus need?
Specific pH data for gladiolus is pending. A soil test from your local Extension lab confirms what your site needs.
Does Gladiolus attract pollinators?
Yes — gladiolus's flowers are a solid nectar source for honeybees, native bees, and butterflies. (Source: Pollinator Partnership.)
Is Gladiolus safe for pets?
Gladiolus is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)