Illustration
Butter Rum Tickseed
Coreopsis 'Butter Rum'
Also called permathread butter rum and butter rum coreopsis
Butter Rum Tickseed blooms from June through August.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Butter Rum Tickseed
Plant it in full sun. It prefers low water. It is hardy in USDA zones 5–8. Expect it to reach about 16 in tall and 24 in wide at maturity, in roughly 2 years (a house reading).
Pets
- No toxic listing found for dogs and cats in the sources we check.
Lists differ and none is complete. If a pet eats a plant and seems unwell, call a veterinarian or a pet poison helpline.
No toxicity note is on file for Butter Rum Tickseed. That is not a clearance: check its safety for people and pets before planting.
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 Butter Rum Tickseed
Plant Butter Rum Tickseed 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 5 to 8, spring means March to May and fall means August or September. Once settled, it blooms from June 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 Butter Rum Tickseed get?
16 intall5 ft 7 inan adult24 inwideSee Butter Rum Tickseed 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 Butter Rum Tickseed
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Butter Rum Tickseed about 24 in apart, center to center, so each plant has room to reach its full width.
Add Butter Rum Tickseed 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
Butter Rum Tickseed's height, spread, hardiness zones, sun, water, bloom color and trait tags were checked against 8 published sources on October 15, 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.
- Plant Addictsthe queue's store pageheight, spread, hardiness zones, sun, water, bloom months and color and trait tags
- loghouseplants.comLog House Plants (grower, Oregon)height, hardiness zones, sun, bloom months and color and trait tags
- pridescorner.comPrides Corner Farms (grower, Lebanon, Connecticut)height, spread, hardiness zones, sun and bloom months and color
- US plant patent (Google Patents)Darrell R. Probst, US Plant Patent PP32,739 (Google Patents USPP32739P...height, spread, hardiness zones, bloom months and color and trait tags
- siteone.comSiteOne Landscape Supply (distributor's product page)height, spread, hardiness zones and bloom months and color
- weradtke.comW. & E. Radtke (grower of the Northern Sunset brand, sold in Wisconsin...sun and bloom months and color
- na.dummenorange.comDümmen Orange North America (the introducer's product page)water and trait tags
- plantdetectives.comPlant Detectives (a nursery that sells this plant)hardiness zones
How the checking works, and what each standard covers, is on the verified plants page.
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Design a garden with this
Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.