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Agave
Agave
Agave is grown for its foliage rather than flowers, giving the garden structure and color all season long.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Agave
Plant it in full sun. It prefers low water. It is hardy in USDA zones 8–11. Expect it to reach about 2.5 ft tall and 3.5 ft wide at maturity, in roughly 2 years (a house reading).
Is Agave toxic to dogs or cats?
- Listed as toxic to dogs and cats by Royal Horticultural Society.
Lists differ and none is complete. If a pet eats a plant and seems unwell, call a veterinarian or a pet poison helpline.
What was checked
Nine facts were checked against named botanical sources, each recorded beside the sources that carried it: mature height and spread, hardiness zones, sun, water, bloom months and color, the trait tags, and years to mature size, which rests on a recorded house rule where no publisher states one and is marked so. Soil, diseases, pests, toxicity and the plant's own names have not yet been read for this plant, and its trait tags are the ones a feature uses rather than every word a page prints. Each fact above carries its own mark. 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 Agave
Plant Agave 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 9, the middle of its hardy zones 8 to 11, spring means January to March and fall means October or November.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 9, the middle of this plant's hardy range, start with zone 9 in January. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Agave get?
2.5 fttall5 ft 7 inan adult3.5 ftwideSee Agave 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 Agave
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Agave about 3.5 ft apart, center to center, so each plant has room to reach its full width.
Add Agave 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
Agave's height, spread, hardiness zones, sun, water and trait tags were checked against 6 published sources on October 29, 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. Bloom was checked as well: a source says Agave's flowers are insignificant or rare in a garden, so, by a recorded house rule for plants grown for their foliage, it shows no bloom window.
- NC State Extensionheight, spread, hardiness zones, sun, water and trait tags
- landscapesourcenursery.comLandscape Source Nurseryheight, spread, sun, water and trait tags
- University of Florida IFASUF/IFAS Extensionheight, hardiness zones, sun and trait tags
- University of Florida IFASUF/IFAS Extensionheight, spread, water and trait tags
- animals.sandiegozoo.orgSan Diego Zoo Wildlife Alliancespread and trait tags
- RHSRoyal Horticultural Societysun and trait tags
How the checking works, and what each standard covers, is on the verified plants page.
Good to know about Agave
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.
Safety
The leaf sap is a skin and eye irritant, not something to eat: it holds needle-like calcium oxalate crystals that cause a rash. Keep it off skin, eyes and pets. per NC State
Worth knowing
Most agaves flower only once. After roughly 10 to 25 years it throws up a giant stalk, blooms, and the rosette then dies, leaving basal pups to carry on. per NC State
Coldest zone varies by source
NC State lists zones 8a to 11b, UF/IFAS a warmer 9 to 11. In sharp-draining, dry soil it survives colder; treat zone 8 as the tender edge. per NC State and University of Florida
Sharp spines are a hazard
Each leaf ends in a stiff terminal spine with toothed margins, a real puncture risk. Site it well away from paths, doorways and play areas, and handle with gloves. per NC State and University of Florida
The agave snout weevil
Its worst pest bores into the central growing point, hollowing the plant so a rosette suddenly collapses and dies, often smelling foul. Remove and dispose of infested plants promptly. per UC IPM
A giant one-time flower stalk
When it blooms it sends up a single stalk 4.5 to 9 m tall, like a branched telephone pole, growing as fast as 15 to 23 cm a day. per NC State and Clemson
Native here, invasive elsewhere
Native to Mexico and the southwestern United States, but widely introduced and now invasive in parts of the Mediterranean, Africa and Australasia. Plant it responsibly where it can naturalize. per NC State
What pairs well with Agave
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.
Alderleaf Mountain Mahogany
Shares full sun and low water; taller at 8.5 ft, for the layer behind it.
Carolina Jessamine
Shares full sun and low to moderate water; climbs to 15 ft behind it, height without the footprint.
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Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.