Despite mild winters, selecting salt tolerant plants for a coastal, seaside, or desert garden can be difficult since the soil is usually very sandy, free draining, and may have a high pH. On top of that, the groundwater is frequently salty and marine winds carry a fine mist of salt-laden water that gets deposited on plant leaves.
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Sedum 'Firecracker' PP 26,595
Item #: 12731
Zones: 4a to 8b
Dormancy: Evergreen
Height: 3" tall
Culture: Sun to Part Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Sedum palmeri 'Mendoza'
Item #: 5727
Zones: 7b to 10b, at least
Dormancy: Evergreen
Height: 8" tall
Culture: Sun to Part Sun
Origin: Mexico
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per
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Sedum tetractinum 'Little China'
Item #: 11758
Zones: 4a to 8b
Dormancy: Evergreen
Height: 3" tall
Culture: Sun to Light Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Stanleya pinnata
Item #: 18052
Zones: 4a to 9a
Dormancy: Winter
Height: 60" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Tamarix ramosissima 'Pink Cascade'
Item #: 8757
Zones: 3a to 8b, at least
Dormancy: Evergreen
Height: 144" tall
Culture: Sun
Origin: Asia, Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per -
Trachycarpus fortunei 'Bulgaria'
Item #: 4250
Zones: 7b to 10b, possibly colder
Dormancy: Evergreen
Height: 240" tall
Culture: Sun to Part Sun
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular priceUnit price per$30.00Sale price $24.00Sale -
Trachycarpus fortunei 'Dwarf Delights'
Item #: 16072
Zones: 7b to 10b
Dormancy: Evergreen
Height: 216" tall
Culture: Sun to Part Sun
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Trachycarpus fortunei 'Greensboro'
Item #: 2322
Zones: 7b to 10b
Dormancy: Evergreen
Height: 240" tall
Culture: Sun to Part Sun
Origin: China, Himalayan Mountains
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Sold outTrachycarpus fortunei 'Tesan'
Item #: 17826
Zones: 7b to 10b, possibly much colder
Dormancy: Evergreen
Height: 360" tall
Culture: Sun to Part Sun
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $35.00Regular priceUnit price per -
Trachycarpus fortunei 'Wagnerianus'
Item #: 4903
Zones: 7a to 9b
Dormancy: Evergreen
Height: 240" tall
Culture: Sun to Part Sun
Origin: Unknown
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Tradescantia 'Pale Puma'
Item #: 7303
Zones: 7b to 10b, at least
Dormancy: Winter
Height: 12" tall
Culture: Sun to Part Sun
Origin: Mexico
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Veronica umbrosa 'Georgia Blue'
Item #: 1170
Zones: 4a to 8b, guessing
Dormancy: Evergreen
Height: 4" tall
Culture: Sun to Light Shade
Origin: Asia, Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Vinca minor 'Illumination'
Item #: 3419
Zones: 4a to 8b, at least
Dormancy: Evergreen
Height: 2" tall
Culture: Part Sun to Shade
Origin: Asia, Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Yucca aloifolia 'Magenta Magic'
Item #: 13747
Zones: 7a to 9b, guessing
Dormancy: Evergreen
Height: 24" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
Yucca flaccida 'Gold Heart'
Item #: 1179
Zones: 5a to 10b, at least
Dormancy: Evergreen
Height: 20" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price per -
Yucca flaccida 'Hairy'
Item #: 6066
Zones: 5a to 9b
Dormancy: Evergreen
Height: 18" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price per -
Yucca x gloriosa 'Variegata'
Item #: 2104
Zones: 7a to 10b, at least
Dormancy: Evergreen
Height: 48" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Yucca linearifolia
Item #: 7190
Zones: 7a to 10b, guessing
Dormancy: Evergreen
Height: 48" tall
Culture: Sun
Origin: Mexico, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Sold outYucca x recurvifolia 'Mellow Yellow'
Item #: 8294
Zones: 6b to 10b
Dormancy: Evergreen
Height: 48" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Yucca rostrata 'Sapphire Skies'
Item #: 6697
Zones: 5b to 10b
Dormancy: Evergreen
Height: 48" tall
Culture: Sun
Origin: Mexico, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Yucca 'Silver Anniversary' PP 31,437
Item #: 12621
Zones: 5b to 10b, at least
Dormancy: Evergreen
Height: 24" tall
Culture: Sun to Part Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per
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Yucca torreyi 'Chaves'
Item #: 16041
Zones: 5a to 10b
Dormancy: Evergreen
Height: 180" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Yucca 'Tromping Around'
Item #: 12995
Zones: 7a to 9b, at least
Dormancy: Evergreen
Height: 60" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per -
Zephyranthes 'Rose Colored Glasses'
Item #: 10826
Zones: 7b to 10b
Dormancy: Winter
Height: 8" tall
Culture: Sun to Part Sun
Origin: Mexico
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per
More Information About Salt Tolerant Seaside Plants
This combination of desiccating factors in coastal gardens can severely stress a landscape plant growing in seaside conditions. Similar salt-related gardening issues may occur if you plant in the drainage path of a salt-treated road or garden in salty desert soil. Luckily there are plenty of salt tolerant perennial plants that can thrive in these coastal garden conditions!
When we say "salt" we are referring primarily to sodium chloride, aka table salt. There are other salts in the world, but this is the one that most vexes gardeners.
Why is Salt Bad for Plants?
There are three main reasons:
- Salt causes plants to lose water.
- Salt can interfere with plant nutrient absorption.
- Salt can interfere with plant metabolism.
How does salt cause plants to lose water?
Osmosis is the mechanism that allows plants to ingest water from soil using their roots. Roots are semipermeable so water molecules can pass from the soil into the cells of the plant. If the salinity of the soil is too high though, the reverse can happen. Water moves out of the plant into the soil causing the plant to lose water and eventually die.
How does salt interfere with plant nutrient absorption?
Plant roots absorb a variety of dissolved mineral salts from the soil. Too much salt in the soil can interfere with the availability and absorption of vital mineral salts due to ion charge imbalances, competitive inhibition of absorption, unbalanced root absorption, and disruption of the internal osmotic balance of the root cells.
How does salt interfere with plant metabolism?
If plants have too much salt in their tissues, it can interfere with the cells' biochemistry, making the cell less efficient and less productive. Salt resistant perennial plants have adjusted their metabolic chemistry to run more efficiently in the presence of high salt levels.
For these reasons, salt tolerant plants do much better in haline environments than their non-salt adapted cousins. Salt adapted perennials are what coastal gardeners should plant in their exposed beach landscapes. As a general rule of thumb, coastal native plants and desert plants or succulents tend to be salt tolerant plants. Scientists have a word for the most extreme salt tolerant plants - halophytes. True halophytes are the kings of the salt tolerant plants and can even drink seawater. Most salt-adapted garden perennials are not true halophytes, but they are still better than most other perennials. Some people further divide salt tolerant or salt resistant plants into "very salt tolerant or resistant", "moderately salt tolerant", and "mildly salt tolerant" groups, but our list lumps them all together.
Growing Plants in a Coastal Environment
In addition to selecting salt resistant plants, gardeners can practice a few cultivation techniques to improve the performance of their plants in a coastal environment.
- Amend the soil with plenty of compost to increase its water holding capacity;
- Water deeply to flush salts out of the root zone;
- Build a wind break, fence or berm to reduce salt spray;
- Do a soil test to determine if you need to adjust your soil pH. Good soil pH levels can improve a plants ability to absorb mineral nutrients despite the presence of salt.
When you are ready to buy salt tolerant plants for your desert or coastal garden, check out our online catalog of salt tolerant plants for sale. All plant groups are well represented...sun perennials, shade perennials, ornamental grasses, flowering perennials, foliage plants, ferns and cold hardy palm trees.