Best Plants for Driveway Borders
I have been refining my driveway border for several years in Melville. The conditions are harsh: reflected heat from asphalt in July, salt splash from deicing in winter, and foot traffic on the edges. My 'Walker's Low' catmint along the driveway has been the most successful planting -- it has not.
I have been refining my driveway border for several years in Melville. The conditions are harsh: reflected heat from asphalt in July, salt splash from deicing in winter, and foot traffic on the edges. My 'Walker's Low' catmint along the driveway has been the most successful planting — it has not needed supplemental water since year two and looks presentable from May through October.
Driveway border plants face three challenges that eliminate most ordinary landscape plants: road salt from deicing, heat and drought from pavement reflection, and compacted soil from vehicle overhang. Understanding which plants handle these stresses is the starting point.
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Salt-Tolerant Perennials
Nepeta × faassenii 'Walker's Low' (Catmint)
Zones 4–8 | 18–24 inches × 24–30 inches | Full sun
I grow this along my entire driveway edge — about 40 linear feet of catmint. Per Missouri Botanical Garden, catmint handles salt, drought, heat, and compacted soil better than most border perennials. Cut back by half after the first bloom flush in late June to promote the August rebloom. No staking, no supplemental watering after year one.
Salvia nemorosa (Meadow Sage)
Zones 4–8 | 12–18 inches × 18–24 inches | Full sun
Per Penn State Extension, meadow sage tolerates salt spray and dry, compacted soils. The vertical purple spikes bloom May–June with a rebloom in late summer if cut back. Salt tolerance is good — better than most perennials in this category.
Sedum spp. — low-growing types
Zones 3–9 | 3–6 inches | Full sun
Per Penn State Extension, low-growing sedums (S. spurium, S. kamtschaticum) tolerate poor, dry, slightly alkaline soils that result from years of salt application. Excellent for the very edge of a driveway or filling gaps between pavement sections.
Hemerocallis spp. (Daylily) — reblooming types
Zones 3–9 | 18–36 inches | Full sun to part shade
Per NC State Extension, daylilies are moderately salt-tolerant and extremely adaptable to difficult conditions. They are among the most forgiving plants for driveway borders in zones 3–9. Reblooming cultivars ('Stella de Oro', 'Pardon Me') provide extended summer color.
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