Sabal Minor (Dwarf Palmetto, Bluestem Palmetto)
The Hardiest Sabal Palm
About Sabal Minor
Sabal minor, the dwarf palmetto, is native to the United States, and is considered to be almost as hardy as the needle palm. It grows naturally in the southeastern United States, and its natural habitat extends west to Texas and Oklahoma. Sabal Minor will eventually form a clump about 5-6 feet in height. It grows from a single trunk, which typically grows mostly underground. The presence of a short above-ground trunk may indicate that the plant is actually Sabal ‘Louisiana’, which may be a Sabal minor variety or a closely-related species.
Dwarf palmetto (Sabal minor)
Larry Allain @ USDA-NRCS PLANTS Database
Hardiness
Sabal minor can be very slow to establish, and this can present some problems with hardiness. For the first few years, it grows a set of juvenile strap leaves, which can be damaged by temperatures below 0°F. Damaged juvenile leaves can be very slow to regrow. It is worth protecting through the first few years, however, because established dwarf palmettos should be hardy throughout zone 6. Like needle palms, they have some tolerance to cold, wet winters. An established underground Sabal minor trunk should be able to withstand brief temperature dips below -10°F and regrow damaged or defoliated leaves. One of the hardiest known dwarf palmetto ecotypes is ‘McCurtain County’, native to southeastern Oklahoma. It has been known to survive temperatures as low as -24°F.
Winter Protection
Mulch heavily around the base, but do not completely cover the leaves. Gradually remove the mulch in spring. Site in a favorable wind-protected exposure, such as the south side of a wall or building. Provide some winter shade if possible.
Growing Tips
Dwarf palmettos prefer full sun to light shade. In colder, marginal climates, full sun is better; in hot climates, light shade is preferred. Sabal minor may grow very slowly during a mild summer. It requires the hot, humid conditions of the southeastern United States to see significant growth in a season. Mulch plants and water regularly until well-established.
