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Globe Thistle
Echinops
Globe Thistle blooms from July through August.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Globe Thistle
Plant it in full sun. It prefers low water. It is hardy in USDA zones 3–9. Expect it to reach about 3.5 ft tall and 2 ft wide at maturity, in roughly 2 years (not yet checked).
What was checked
Mature height and spread, hardiness zones, sun and the trait tags were checked against named botanical sources for this plant. The bloom months and water need on this page were not, and each fact above says which. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.
When to plant Globe Thistle
Plant Globe Thistle in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. In zone 6, the middle of its hardy zones 3 to 9, spring means March to May and fall means August or September. Once settled, it blooms from July to August.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Globe Thistle get?
3.5 fttall5 ft 7 inan adult2 ftwideSee Globe Thistle in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.
How far apart to plant Globe Thistle
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Globe Thistle about 2 ft apart, center to center, so each plant has room to reach its full width.
Add Globe Thistle to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.
Where these facts come from
Globe Thistle's height, spread, hardiness zones, sun and trait tags were checked against 18 published sources on July 31, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.
- NC State ExtensionPlant Toolboxheight, spread, hardiness zones, sun, years to mature size and trait tags
- Chicago Botanic GardenPlant Finderheight, spread, hardiness zones, sun and trait tags
- Missouri Botanical GardenPlant Finderheight, spread, hardiness zones, sun and trait tags
- Missouri Botanical GardenPlant Finderheight, spread, hardiness zones, sun and trait tags
- Missouri Botanical GardenPlant Finderheight, spread, hardiness zones, sun and trait tags
- Missouri Botanical GardenPlant Finderheight, spread, hardiness zones, sun and trait tags
- Perennials.com (Heritage Perennials)Heritage Perennialsheight, spread, hardiness zones, sun and trait tags
- RHSRoyal Horticultural Societyheight, spread, sun, years to mature size and trait tags
- RHSRoyal Horticultural Societyheight, spread, sun, years to mature size and trait tags
- Sooner Plant Farmheight, spread, hardiness zones, sun and trait tags
- Walters Gardensheight, spread, hardiness zones, sun and trait tags
- Chicago Botanic GardenPlant Finderheight, hardiness zones, sun and trait tags
- Clemson Home and Garden Information CenterClemson Cooperative Extension, Home & Garden Information Centerheight, spread, sun and trait tags
- diggingdog.comDigging Dog Nurseryheight, spread, hardiness zones and trait tags
- diggingdog.comDigging Dog Nurseryheight, spread, hardiness zones and trait tags
- University of Illinois ExtensionFlowersheight, hardiness zones, sun and trait tags
- University of Illinois ExtensionHort Answersheight, hardiness zones, sun and trait tags
- diggingdog.comDigging Dog Nursery, genus Echinopstrait tags
How the checking works, and what each standard covers, is on the verified plants page.
Good to know about Globe Thistle
Curated from university extensions, botanic gardens and other primary sources, with the source named on every note. A note reports what its source says; where that differs from a fact above, the fact above is this entry's stored value, and its mark says whether it has been checked.
Worth knowing
The deep taproot does double duty: it mines deep water to shrug off drought, and it is why globe thistle resents being moved or divided. per NC State and Missouri Botanical Garden
Bloom end varies by source
The peak is July into August everywhere. NC State and Missouri Botanical Garden extend it into September in cooler regions or with deadheading; Illinois stops at August. per NC State and Missouri Botanical Garden
Lean soil keeps it upright
Rich, fertile soil drives soft, floppy, leggy stems that may need staking. Lean, dry soil in full sun keeps the stiff stems self-supporting, so skip fertilizer. per Missouri Botanical Garden and NC State
Deer and rabbit resistant
Deer and rabbits generally leave it alone: the stiff, spiny, thistle-like foliage is the deterrent. Very hungry wildlife may still sample it. per NC State and Penn State
Non-toxic to pets
The ASPCA rates globe thistle non-toxic to dogs, cats and horses. The one caution is mechanical, not chemical: the prickly heads can irritate if chewed. per ASPCA and NC State
Strong pollinator plant
The nectar-rich blue globes draw bees and butterflies through mid to late summer, when forage can be scarce. A favorite for pollinator and cutting borders. per NC State and Missouri Botanical Garden
What pairs well with Globe Thistle
Good companions share its growing conditions and add something it lacks: an earlier or later bloom, a lower carpet in front, or structure through winter.
Creeping Phlox
Shares full sun and low water; blooms in mid spring, before this one opens; low at 6 in, to carpet the ground beneath; both are strong pollinator plants, and they feed in different months.
Giant Allium
Shares full sun and low water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; purple sits close to blue on the wheel.
Sage
Shares full sun and low water; blooms in late spring, before this one opens; both are strong pollinator plants, and they feed in different months; lower at 1.5 ft, for the front of the border.
Crocus
Shares full sun and low water; blooms in late winter, before this one opens; low at 4 in, to carpet the ground beneath; both offer pollinator forage, in different months.
Autumn Crocus
Shares full sun and low to moderate water; blooms in early fall as this one finishes; low at 6 in, to carpet the ground beneath; both offer pollinator forage, in different months.
Thyme
Shares full sun and low water; opens in late spring and overlaps into this one's season; low at 6 in, to carpet the ground beneath; both are strong pollinator plants.
English Daisy
Shares full sun and low to moderate water; blooms in mid spring, before this one opens; low at 6 in, to carpet the ground beneath; both offer pollinator forage, in different months.
Pansy
Takes full sun to part sun and low to moderate water; blooms in early spring, before this one opens; lower at 8 in, for the front of the border; both offer pollinator forage, in different months.
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