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Drought-tolerant plants

Low- and very-low-water plants for dry gardens, Mediterranean climates, and water-wise design.

2,235 plants

Drought-tolerant plants in the database

Nu™eg Scented Geranium (Pelargonium Fragrans) — Due to its compact size and fragrant nature

Perennial

Nu™eg Scented Geranium

Pelargonium Fragrans

FullUSDA 9–10
Nuttall's Oak (Quercus Texana) — quickly grows to a robust height of 40-60 feet with a spread of 25-35 feet

Tree

Nuttall's Oak

Quercus Texana

FullUSDA 7–11
Obsidian Alum Root (Heuchera 'Obsidian') — Heuchera 'Obsidian', known as Obsidian Alum Root, is cherished for its stunning, nearly black, glossy foliage

Perennial

Obsidian Alum Root

Heuchera 'Obsidian'

HalfUSDA 4–9
Ocean Spray (Holodiscus Discolor) — The shrub's distinctive 5 to 8-inch-long flower panicles bloom profusely in late spring to early summer; white flowers in

Shrub

Ocean Spray

Holodiscus Discolor

FullUSDA 4–7
Ocotillo, Coachman's Whip (Fouquieria Splendens) — which can swiftly fall off in response to drought; known for its striking appearance and, image 108

Succulent

Ocotillo, Coachman's Whip

Fouquieria Splendens

FullUSDA 9–10
October Daphne (Sedum Sieboldii) — These flowers are roughly 0.5 inches in diameter and attract pollinators like bees and butterflies

Ground cover

October Daphne

Sedum Sieboldii

FullUSDA 3–10
October Glory Red Maple (Acer Rubrum 'October Glory') — is a captivating cultivar celebrated for its stunning fireworks of fall color and robust growth

Tree

October Glory Red Maple

Acer Rubrum 'October Glory'

FullUSDA 3–10
Octopus Agave (Agave Vilmoriniana) — presents a striking and unconventional aesthetic for your landscape design

Succulent

Octopus Agave

Agave Vilmoriniana

FullUSDA 9–11
Old Man Cactus (Cephalocereus Senilis) — cactus with pink blooms; overwatering can lead to root rot, a common issue with cacti, image 74

Cactus

Old Man Cactus

Cephalocereus Senilis

FullUSDA 9–10
Old Man Of The Andes (Oreocereus Celsianus) — Drought-tolerant, it requires minimal watering, making it ideal for xeriscaping or arid-themed gardens

Cactus

Old Man Of The Andes

Oreocereus Celsianus

HalfUSDA 9–10
Old Man Prickly Pear (Opuntia Erinacea) — It blooms bright yellow flowers in late spring, adding a vibrant touch to arid landscapes; evoking the, image 49

Cactus

Old Man Prickly Pear

Opuntia Erinacea

FullUSDA 9–10
Old Man Saltbush, Chamisa (Atriplex Nummularia) — With its silvery-grey foliage and rounded growth habit

Shrub

Old Man Saltbush, Chamisa

Atriplex Nummularia

FullUSDA 8–11
Oleander (Nerium Oleander) — They prefer full sun to partial shade settings and require moderate watering; although hardy in USDA zones 8-10, it is, image 58

Shrub

Oleander

Nerium Oleander

FullUSDA 8–11
Olive (Olea Europaea) — Olea europaea, commonly called Olive tree, is revered for its evergreen foliage and gnarly trunk; thriving in USDA zones, image 85

Tree

Olive

Olea Europaea

FullUSDA 9–10
Oo-La-La ™ Bougainvillea (Bougainvillea 'Oo-La-La') — The 'Oo-La-La' Bougainvillea

Ground cover

Oo-La-La ™ Bougainvillea

Bougainvillea 'Oo-La-La'

FullUSDA 10–11
Opal Alum Root Hybrid (Heuchera 'Opal') — commonly known as Opal Alum Root Hybrid

Ground cover

Opal Alum Root Hybrid

Heuchera 'Opal'

HalfUSDA 6–10
Opuntia Cultivars (Opuntia Cvs.) — Cold hardiness varies among species, from USDA zones 4 to 9

Cactus

Opuntia Cultivars

Opuntia Cvs.

FullUSDA 9–11
Orange African Daisy (Arctotis Hybrids 'Orange') — The Arctotis hybrid 'Orange'

Ground cover

Orange African Daisy

Arctotis Hybrids 'Orange'

FullUSDA 8–10
Orange Alstroemeria (Alstroemeria Hybrids Orange) — also known as Peruvian Lily

Perennial

Orange Alstroemeria

Alstroemeria Hybrids Orange

FullUSDA 8–10
Orange Butterfly Bush (Buddleia Globosa) — so check local regulations before including it in landscape plans; prune lightly post-bloom to encourage shape and

Shrub

Orange Butterfly Bush

Buddleia Globosa

FullUSDA 5–10
Orange Clock Vine (Thunbergia Gregorii) — making it splendid for trellises

Ground cover

Orange Clock Vine

Thunbergia Gregorii

FullUSDA 9–11
Orange Gazania (Gazania Orange) — The Orange Gazania (Gazania rigens)

Ground cover

Orange Gazania

Gazania Orange

FullUSDA 9–9
Orange Geiger Tree (Cordia Sebestena) — It prefers full sun and adapts to various soil types; this evergreen reaches up to 20-30 feet in height and, image 61

Shrub

Orange Geiger Tree

Cordia Sebestena

FullUSDA 8–11
Orange Groundsel (Senecio Fulgens) — The Orange Thistle, or Senecio fulgens, is a striking, low-maintenance perennial

Ground cover

Orange Groundsel

Senecio Fulgens

FullUSDA 9–10

Photographs are credited on each plant’s page.