Hardiness Zones / 11

 

Plants For Hardiness 11, Flowers For Hardiness 11, Perennials For Hardiness 11, Annuals For Hardiness 11, Shrubs For Hardiness 11, Bulbs For Hardiness 11, Border ideas For Hardiness 11

Zone 11

Hardiness zone 11: lowest average temperatures of 40°F to 50°F or 4.4°C to 10°C

Based on the minimum ten-year average winter temperatures, plant hardiness zones maps have been progressively developed, first by the Department of Agriculture (USDA) for the United States and then more or less applied to the rest of the planet. The purpose of these hardiness zones is to identify how well plants will withstand the cold winter temperatures of these zones. The USDA Hardiness Zone Map divides North America into 13 zones. The range of minimum average temperatures for zone 11 is between 40°F and 50°F or +4.4°C and +10°C. If you are planning to buy a shrub, perennial or tree, you need to make sure that this new plant will tolerate year-round conditions in your area. Therefore, to ensure your new acquisition will survive and grow year after year, you will need to compare the hardiness zone of your area with the hardiness zone of your plant.


Zone 11 Guides


Abutilon 'Souvenir de Bonn' (Flowering Maple)

Abutilon 'Souvenir de Bonn' (Flowering Maple) is a large, upright, evergreen shrub bearing a profusion of pendent, salmon-pink, bell-shaped flowers, up to 2.5 in long (6 cm), adorned with dark red veining. Resembling Chinese lanterns, they dangle like porcelain earrings from the branches. Blooming for months from spring to fall (all year long in frost free areas), they attract butterflies and hummingbirds. Equally beautiful, the variegated foliage of large, maple-like, dark green leaves features showy, creamy edges.

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Abutilon 'Victor Reiter' (Flowering Maple)

Very floriferous, Abutilon 'Victor Reiter' (Flowering Maple) is an upright, evergreen shrub or small tree bearing a profusion of huge, outward facing, soft tangerine, bell-shaped flowers, up to 3 in. across (7 cm). Resembling miniature pumpkins in buds, they open to form hibiscus-like flowers and dangle like porcelain earrings from the gracefully arching branches. Blooming for months from spring to fall, they attract butterflies and hummingbirds. The pretty blossoms stand out nicely against the lush foliage of shiny, maple-like, dark green leaves.

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Abutilon megapotamicum 'Variegatum' (Trailing Abutilon)

Spectacular, Abutilon megapotamicum 'Variegatum' (Trailing Abutilon) is a semi-evergreen shrub bearing pendent, bell-shaped flowers, 2 in. across (5 cm), adorned with a red calyx protecting its yellow petals. Blooming for weeks from summer to frost, they decorate the plant with a profusion of blossoms resembling Chinese lanterns. Butterflies and hummingbirds feast on them. Providing a neat contrast, the variegated foliage of heart-shaped, slender pointed leaves is flecked with golden yellow spots and lines the gracefully arching branches.

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Abutilon megapotamicum (Trailing Abutilon)

Vigorous, Abutilon megapotamicum (Trailing Abutilon) is a semi-evergreen shrub bearing pendent, bell-shaped flowers, 2 in. across (5 cm), adorned with a red calyx protecting its yellow petals. Blooming for weeks from summer to frost, they decorate the plant with a profusion of blossoms resembling Chinese lanterns. Butterflies and hummingbirds feast on them. The foliage of heart-shaped, slender pointed leaves lines the gracefully arching branches.

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Abutilon striatum (Red Vein Indian Mallow)

Spectacular-looking, Abutilon striatum (Red Vein Indian Mallow) is an evergreen shrub bearing a profusion of showy, orange, bell-shaped flowers, 2 in. across (5 cm), adorned with prominent crimson veining. Resembling Chinese lanterns, they dangle like porcelain earrings from extraordinarily long stalks. Blooming for months from spring to fall (all year long in frost free areas), they attract butterflies and hummingbirds.The foliage of shiny, maple-like, dark green leaves lines the strongly upright branches.

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Acanthus mollis 'Rue Ledan' (Bear's Breech)

Luminous and floriferous, Acanthus mollis 'Rue Ledan' (Bear's Breech) is a clump-forming perennial boasting strikingly elegant spikes of hooded, pure white flowers adorned with green bracts. Blooming from early summer to early fall, they rise well above a superb foliage mound of large, shiny, deeply-cut, dark green leaves.

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Acanthus mollis (Bear's Breech)

Stately and vigorous, Acanthus mollis (Bear's Breech) is a semi-evergreen clump-forming perennial boasting strikingly elegant spikes of hooded, creamy-white flowers adorned with dusky purple bracts. Blooming from early to mid-summer, they rise well above a superb foliage mound of large, shiny, deeply-cut, dark green leaves.

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Adiantum raddianum (Delta Maidenhair)

Elegant and fast growing, Adiantum raddianum (Delta Maidenhair) is a tufted evergreen fern with smooth, purplish-black stalks bearing triangular, 3-pinnate, lacy fronds composed of rounded, fan-shaped segments. Emerging light green, they darken with age and can reach 18 in. in length (45 cm). Popular as houseplant, it is long lived if it receives sufficient humidity and is not exposed to drafts.

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Aeonium 'Sunburst'

Among the loveliest of Aeoniums, award-winning 'Sunburst' is an evergreen succulent with large variegated rosettes, 6-8 in. across (15-20 cm), of fleshy, spoon-shaped leaves. Held on long bare stems, the leaves are a delightful combination of creamy yellow and green stripes and are adorned with coppery red tips when exposed to the sun.

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Aeonium 'Zwartkop'

A truly captivating Aeonium, award-winning 'Zwartkop' is an evergreen succulent with large rosettes, 6-8 in. across (15-20 cm), of glossy, fleshy, dark burgundy, pointed leaves. If grown in full sun, the foliage of this Aeonium turns almost black, adding incredible drama and interest to the garden or containers.

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Aeonium canariense (Canary Island Aeonium)

Aeonium canariense is an impressive evergreen succulent with large velvety rosettes, 6-12 in. across (15-30 cm), of fleshy leaves. Fresh green when grown in part shade, the soft, fuzzy leaves become tinged with reddish pink when exposed to the sun.

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Aeonium haworthii 'Kiwi'

A very pretty Aeonium, award-winning 'Kiwi' is an evergreen succulent with small variegated rosettes, 3-5 in. across (7-12 cm), of fleshy, spoon-shaped leaves. Creamy-yellow in their center, the pointed leaves gradually change to soft green towards their edges, which are elegantly adorned with a rose-red ribbon when adequately exposed to the sun.

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Aeoniums

Mostly native to the Canary Islands off the west coast of North Africa, Aeoniums are fascinating evergreen succulents with irresistible rosettes of fleshy, pinwheel leaves. Attractive when not blooming, they are particularly striking with their bright racemes of small, star-shaped flowers.

Agapanthus 'Arctic Star' (African Lily)

Noted for its hardiness and vigorous growth, Agapanthus 'Arctic Star' produces large rounded clusters of trumpet-shaped, pure white flowers on sturdy, upright stalks atop a clump of beautiful, semi-evergreen, gray-green, strap-shaped leaves.

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Agapanthus 'Black Buddhist' (African Lily)

One of the darkest African Lilies, Agapanthus 'Black Buddhist' is a compact perennial with large rounded clusters packed with dark blue, trumpet-shaped flowers, each adorned with a dark stripe down the center of the petals.

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Agapanthus 'Blue Heaven' (African Lily)

Blooming perpetually through the entire season, Agapanthus 'Blue Heaven' is an upright, clump forming African Lily with profuse rounded clusters packed with up to 80 dark violet-blue flowers. Blooming from early to late summer, they rise on stiff, upright stalks atop clumps of large, evergreen, strap-shaped leaves.

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Agapanthus 'Bressingham Blue' (African Lily)

Native to South Africa, Agapanthus 'Bressingham Blue' is a flamboyant African Lily with showy, 4.5 in. (11 cm), rounded clusters of deep amethyst-blue flowers from mid to late summer. They rise on stiff, upright stalks atop clumps of beautiful, long, shiny leaves.

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Agapanthus 'Brilliant Blue' (African Lily)

Free-flowering, Agapanthus 'Brilliant Blue' is a compact semi-evergreen African Lily boasting loose clusters of rich blue flowers, adorned with a darker stripe running through each petal. After 5 years, it will produce more than 100 flowers each summer.

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Agapanthus 'Donau' (African Lily)

Agapanthus 'Donau' is a lovely African Lily with showy rounded clusters of star-shaped, pale-blue flowers adorned with dark-blue central stripes. Blooming from mid to late summer, the showy flowers, up to 8 in. across (20 cm), rise on stiff, upright stalks atop clumps of beautiful, deciduous, arching, lustrous green leaves.

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Agapanthus 'Dr. Brouwer' (African Lily)

Agapanthus 'Dr. Brouwer' is a lovely African Lily with showy rounded clusters of dark blue, star-shaped flowers from mid to late summer. They rise on stiff, upright stalks atop clumps of beautiful, deciduous, arching dark blue green leaves.

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Agapanthus 'Ever Sapphire' (African Lily)

Flowering earlier than most varieties, Agapanthus 'Ever Sapphire' is a dwarf, semi-evergreen African Lily boasting loose clusters of deep blue flowers over a long season. Starting flowering in late spring, it reblooms throughout the summer for a long-lasting display.

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Agapanthus 'Fireworks' (African Lily)

Agapanthus 'Fireworks' is a compact African Lily boasting huge umbels densely packed with delicate trumpet flowers which change from dark, violet blue at the throat to pure white on the petal edges. They sit atop slender stalks that arise from a neat clump of strap-shaped, fresh green leaves.

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Agapanthus 'Loch Hope' (African Lily)

Tall, award-winning Agapanthus 'Loch Hope' produces glamorous rounded clusters of trumpet-shaped, deep blue flowers.

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Agapanthus 'Luly' (African Lily)

Agapanthus 'Luly' is a particularly charming African Lily with striking rounded clusters of pale-blue, star-shaped flowers, each petal with a darker mid-vein.

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