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Gossypium harknessii (San Marcos Hibiscus)

Gossypium harknessii
San Marcos Hibiscus

For the low deserts, it’s hard to beat San Marcos Hibiscus for adaptability and good looks. Native to Baja California, Mexico, this plant thrives in full sun and reflected heat exposures. In fact, it is one of the most popular plants for right-of-way landscapes in the City of Palm Desert, CA, where summer temperatures sizzle. Forming a rounded mound to 3-4 feet tall by 5-6 feet wide, this shrub is evergreen, with thick, heart-shaped glossy green leaves. Large yellow flowers with 5 distinctive red dots appear intermittently in the spring, early summer and fall months. San Marcos Hibiscus prefers native rocky soils without added organic matter. No fancy soil prep for this beauty! It is also very salt tolerant.

Plant Type Native, Shrub
Exposure Full Sun
Water Needs Low
Hardiness Zone Zone 9 (20° F)
Flower Color Yellow
Flower Season Spring, Summer, Early Summer, Fall
Growth Rate Moderate
Height 3' - 4' (ft)
Spread 5' - 6' (ft)
Spacing 6' (ft)
Characteristics Evergreen, Showy
Attracts Bees, Pollinators
Maintenance Average
Garden Uses Beds and Borders, Mass Planting
Tolerance Rocky Soil, Salt
Soil Type Loam, Sand
Soil PH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Image by: MSWN
Image by: MSWN

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This catalog is for reference purposes only. All plants may not be available at all times in the nursery. Please check with our store for current availability.