Foxtail palm — Sebastian, Florida

Foxtail palms survive most Sebastian winters, but UF/IFAS says the species does best where temperatures stay above 30°F, a line Indian River County crossed on Feb. 1 and 2, 2026.

UF/IFAS FR304 states that in the United States the foxtail palm survives best where temperatures do not fall below 30°F. The broader UF/IFAS list for the region is blunter. EP020 names the foxtail palm with the pygmy date, triangle and Alexandra palms as species that are sometimes marketed in Central Florida and may survive with damage in some protected locations, but are not reliably hardy in most of the region. Sebastian sits at the southern edge of that region on the Indian River Lagoon, which softens but does not remove the risk.

The 2026 outbreak showed what that means. Vero News reported that Vero Beach dropped to 26 degrees on Feb. 1, breaking a record from 1966, then to 27 degrees the next night and 31 degrees on Feb. 3. A foxtail in an open front lawn in the Sebastian Highlands takes that cold directly; one on the south side of a house, near the lagoon along Indian River Drive or under the canopy of oaks is in one of the protected locations UF/IFAS describes.

A mature foxtail palm in Sebastian stands up to 30 feet tall with 8 to 10 foot plumed fronds, a pale gray trunk swollen near the base and a blue-green crownshaft.

For a Sebastian planting, FR304 describes the trunk as light gray to almost white, somewhat enlarged mid-length, with dark leaf scars ringing it, and notes that the stem's swollen base becomes slender toward the top and can account for as much as 3 feet of the palm's total height. The pinnately compound fronds reach 8 to 10 feet on a short petiole of 6 to 12 inches, and the dark green leaflets grow whorled around the rachis, which is what gives the fox-tail look. On top sits a smooth crownshaft, and the fruits that form below it are 2 inches long, egg shaped and orange to red when ripe.

Speed is its selling point in Sebastian landscapes. FR304 states the foxtail palm can reach heights of 30 feet, growing fast in full sun, but tolerates both sunny and shady conditions, and that its resemblance to the royal palm makes it a desirable landscape specimen. FR304 adds that many people like the palm because it grows relatively fast and its bushy fronds look quite different from many other palms on the market, the same reasons it is chosen for Sebastian entry plantings and pool borders.

A cracked lower trunk is often normal. UF/IFAS EP473 shows split and flared cortex and pseudobark on Wodyetia bifurcata caused by emergence of new adventitious roots from the aerial portion of the root initiation zone, so roots pushing out at the base of a Sebastian foxtail are growth, not rot.

Yellow new fronds on a Sebastian foxtail palm usually signal iron deficiency, which UF/IFAS says this species is particularly prone to when soil pH runs high.

FR304 states the foxtail palm prefers a well-drained soil with a slightly acidic pH. UF/IFAS EP265 adds that most palms suffer iron deficiency only from poor soil aeration or deep planting, but Wodyetia bifurcata and lady palm are particularly prone to Fe deficiency induced by high soil pH. In a Sebastian yard, soil beside concrete foundations, driveways and pool decks, or over shell and limerock fill, is where a pH test is most worth running before a foxtail goes in.

Depth and drainage matter just as much. EP265 states that iron deficiency is best prevented by planting palms no deeper than they were originally growing and by planting in a well-drained soil or site, and that palms planted too deeply should be dug up and replanted at the proper depth. Low Sebastian lots that hold water after summer storms are a poor place for a foxtail. On alkaline soils, EP265 rates FeEDDHA as the most effective iron product, with a warning that all chelates can burn palms at high rates.

Water at the base, not on the fronds. FR304 notes the palm is drought tolerant but grows best when ample water is applied at its base, and that watering from above can encourage leaf spot fungus to develop or can aggravate this fungus if it is already present. Sebastian irrigation heads that spray into the crown are worth redirecting. Any fertilizer program in Sebastian follows Section 50-5 of the city code: no nitrogen or phosphorus fertilizer on landscape plants from June 1 through September 30, and at least 50 percent slow release nitrogen.

Yes: UF/IFAS photographs metsulfuron herbicide damage on foxtail palm, and systemic lawn herbicides used on Sebastian turf can stunt new foxtail fronds months after application.

UF/IFAS EP263 explains that systemic herbicides, whether preemergent or postemergent, typically affect only newly developing leaves, and because of their slow leaf production rates, symptomatic leaves may not become visible for 6 to 8 months following application. The same publication pictures metsulfuron damage on Wodyetia bifurcata and cites a 2010 study by Broschat and Busey on the toxicity of turfgrass postemergence herbicides on the species. In Sebastian, where foxtails are usually set into St. Augustine or bahia lawns, a crumpled or stunted new frond in spring can trace back to a weed treatment the previous fall.

The damage is usually short lived. EP263 reports that these products typically affect only one or two new leaves, with subsequent leaves emerging perfectly normal in appearance, so a Sebastian foxtail that shows one bad frond after a lawn spray generally grows out of it. Keeping broadcast weed products off the palm's root zone, and marking the palm ring before a lawn crew sprays, prevents a repeat.

Foxtail palms in Sebastian are not on the UF/IFAS host lists for lethal yellowing or lethal bronzing, but like every palm they can get Ganoderma butt rot, and the city treats them as ordinary palms.

The two phytoplasma diseases active in Indian River County have specific host lists. Wodyetia bifurcata does not appear in the table of species susceptible to lethal yellowing in UF/IFAS PP146, nor among the host palms of lethal bronzing in UF/IFAS PP163, which does list Indian River County among counties with confirmed lethal bronzing. That makes the foxtail one of the safer feather palms for a Sebastian yard where queen, Christmas or coconut palms have died of either disease. Ganoderma is different: UF/IFAS PP100 states that all palms are assumed to be susceptible to this disease, so a foxtail should not go into the stump hole of a palm that died of butt rot.

City rules are light. The City of Sebastian tree protection brochure dated April 7, 2023 protects only sabal palms as specimen palms and lets palms make up no more than 35 percent of a lot's required trees, with 6 feet of clear wood at planting. Foxtail palms in containers and other landscape palms for Sebastian lots are listed among palms and trees on Digital Towns Market. Digital Towns Market is our marketplace.

For a yellowing or damaged foxtail, the IRC Master Gardener Program plant clinic meets Wednesdays from 10 a.m. to noon at the North IRC Library, 1001 Sebastian Blvd.