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Brian Kemble's List of Hardy Aloes

Species

aculeata adigratana affinis africana alooides ammophila angelica arborescens aristata asperifolia berhana branddraaiensis brevifolia broomii buhrii burgersfortensis cameronii camperi candelabrum capitata var. capitata capitata var. quartziticola castanea ciliaris claviflora comosa comptonii cooperi 20 25 20 20 25 25 upper 20's low 20's low 20's low 20's low 20's 20 20 20 28 25 25 30 20 24 30 27 29 under tree cover at 25° leaf damage under plastic cover at 25° rots easily if wet too long, but hardy to 20° X 28 22 25 17 27 28 some clones hardy to upper 20's, others tender bad leaf damage in low 20's flowers damaged in the low 20's leaf damage in the low 20's leaves OK, flowers damaged in the low 20's performs well in S. California X quite cold hardy and wet tolerant X 19 19 25 27 25

Minimum temp in cultivation(°F)

20 28-30

Minimum temp in habitat (°F)

22

Comments

Winter Grower

22 32 29 28 29 29 13 25 killed below 19°; fairly hardy and very wet tolerant very cold hardy, can rot with insufficient drainage cold hardy, can't tolerate too much rain in winter leaf damage at 20° survived with leaf damage at 25°

Species cremnophila davyana dichotoma divaricata distans dumetorum dyeri ecklonis elgonica erinacea excelsa ferox fosteri framesii gariepensis glauca graciliflora gracilis grandidentata greenei hereroensis hildebrandtii humilis immaculata inyangensis juvenna karasbergensis kedongensis keithii

Cultivation (F°) upper 20's 20 upper 20's 20 20 25

Habitat (F°)

Comments undamaged under tree canopy in upper 20's

Winter Grower

19 24 severe damage at 20° 34 very hardy and wet tolerant leaves damaged at 25° 28 17 X X

25 27 low 20's 20 20 mid 20's 37 24 22 34 23 mid 20's 27 26 26 low 20's mid 20's 19 37 21 upper 20's low 20's 25 28 mid 20's low 20's 21 mid 20's 26

bad leaf damage at 25° X leaf damage in the low 20's flowers damaged at 20°, leaves OK

X X very hardy and wet tolerant X

needs excellent drainage to survive wet winters

heavily damaged at 20°, OK under cover to mid 20's

needs excellent drainage, little summer water moderate damage at 26°, heavily damaged at 20°

X

Species khamiesensis komatiensis krapohliana lateritia lineata littoralis longistyla lutescens marlothii melanacantha microstigma mitriformis mudenensis mutabilis mutans namibiensis ortholopha pachygaster parvibracteata pearsonii peglerae perryi petricola pillansii plicatilis pluridens polyphylla pratensis pretoriensis

Cultivation (F°)

Habitat (F°) 24 24 28

Comments needs excellent drainage, little summer water

Winter Grower X

X leaf damage at low 20's

low 20's 20 20 26 20 mid 20's 20 37 22 28 low 20's low 20's mid 20's 27 34 26 21 20 30 25 mid 20's 20 24 27 21 low 20's low 20's 28 27 20 low 20's mid 20's 20 28 9 19 28

sensitive to wetness, rots easily mid 20's under cover

needs excellent drainage

X

X flowers damaged mid 20's

very sensitive to wet conditions

very sensitive to wet conditions

X

very sensitive to wet conditions quite hardy if dry survived low 20's with leaf damage

X

very sensitive to wet conditions blackened leaf tips in the 20's, killed in the teens, likes lots of water low 20's if under cover; killed in the teens

X X

Species prinslooi ramosissima reitzii reynoldsii rivae rubroviolacea sabaea (syn. gillilandii) saponaria schelpei simii sinkatana

Cultivation (F°) mid 20's

Habitat (F°) 33 27

Comments

Winter Grower

needs excellent drainage

X

20

26 27

20 mid 20's 29 20 upper 20's 29 mid 20's 24 20 mid 20's 20 18 20 20 mid 20's mid 20's 20 low 20's mid 20's 24 24 21 24 28 24 20 30 20 flowers ruined at 20° needs excellent drainage X 28 28 26 21 26 33 23 25 performs well in all but the coldest winters most "bomb proof" aloe, takes extremes of cold and wet flower damage at 20° flower damage at 20° X performs well outside in the SF Bay Area 30 survived 20° with leaf damage killed at 20° quite hardy and does not mind winter rain undamaged under tree canopy in upper 20's

soutpansbergensis speciosa spectabilis striata striatula succotrina suprafoliata tenuior tomentosa transvaalensis ukambensis vanbalenii vandermerwei variegata verdoorniae viridiflora vogtsii wickensii zebrina

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