Introduction
Diversification of urban trees
Trait based tree selection
Material and methods
Plant material
Leaf water potential at turgor loss
Literature review
Dendrological literature | |
- Ashburner and McAllister (2013). The genus Betula – a taxonomic revision of birches. | |
- Bean (1980) Trees and Shrubs Hardy in the British Isles. | |
- Beaulieu (2003) An Illustrated Guide to Maples. | |
- Cappiello and Shadow (2005) Dogwoods. | |
- Dirr (2009) Manual of Woody Landscape Plants. | |
- Elias (1989) Field guide to North American trees. | |
- Fiala (2008) Lilacs – a gardener’s encyclopedia. | |
- Gardiner (2000) Magnolias – a gardener’s guide. | |
- Gayraud (2013) Cornus. | |
- Grimm (2002) The illustrated book of trees. | |
- Kozlowski and Gratzfeld (2013) Zelkova – an ancient tree; global status and conservation action. | |
- Krüssmann (1986) Manual of Cultivated Broad-leaved Trees & Shrubs. | |
- Leopold (2005) Native plants of the northeast. | |
- Menitsky (2005) Oaks of Asia. | |
- Miller and Lamb (1985) Oaks of North America. | |
- Nelson et al. (2014) Trees of Eastern North America. | |
- Pigott (2012) Lime-trees and Basswoods: a biological monograph of the genus Tilia. | |
- Spellenberg et al. (2014) Trees of Western North America. | |
- van Gelderen et al. (1994) Maples of the World. | |
Literature directed at landscape plant use | |
- Bradshaw et al. (1995) Trees in the urban landscape. | |
- Carr (1979) Gardener’s Handbook; Broad-leaved trees. | |
- Flint (1983) Landscape plants for eastern North America. | |
- Forrest (2006) Landscape Trees and Shrubs – Selection, Use and Management. | |
- Gilman (1997) Trees for urban and suburban landscapes. | |
Gruffydd (1994) Tree form, size and colour – a guide to selection, planting and design. | |
- Hightshoe (1988) Native trees, shrubs and vines for urban and rural America. | |
- Krüssmann (1982) Choosing Woody Ornamentals—A Concise Manual for the correct use of woody landscape plants. | |
- Mitchell and Coombes (1998) The garden tree. | |
- Mitchell and Jobling (1984) Decorative trees for country, town and garden. | |
- Philips (1993) Urban trees – a guide for selection, maintenance, and master planning | |
- Stoecklein (2001) The complete plant selection guide for landscape design. | |
- Trowbridge and Bassuk (2004) Trees in the Urban Landscape – Site Assessment, Design and Installation. | |
- Houtman, R. (ed.) (2015) Van den Berk on Trees | |
- Sternberg and Wilson (2004) Native Trees for North American Landscapes |
Professional experience survey
Results
Literature review
Species | n | Spring Ψπ100 | Summer Ψπ100 | ΔΨπ100 | Site related information from literature |
---|---|---|---|---|---|
Acer grandidentatum
| 3 | −1.47 (±0.15) | −3.13 (±0.15) | 1.66*** | •Grows along mountain streams (Krüssmann 1986) •Grows on sunny dry slopes (van Gelderen et al. 1994) •Prefers dry soil and sunny locations (Beaulieu 2003) •Grows in moist mountain areas (Spellenberg et al. 2014) •Moderate drought tolerance (Gilman 1997) •Tolerates very alkaline soils and dry conditions (Sternberg and Wilson 2004) |
Acer miyabei | 5 | −1.60 (±0.08) | −2.38 (±0.06) | 0.77*** | •Tolerate occasional periods of dry soil (Bassuk et al. 2009) •Prefer moist and well-drained soil (Dirr 2009) •Grows in river banks (Krüssmann 1986) •Some drought tolerance (Gilman 1997) |
Acer monspessulanum | 3 | −1.18 (±0.24) | −3.56 (±0.13) | 2.39*** | •Grows in dry gravelly slopes (Krüssmann 1986) •Grows in dry and stony places (van Gelderen et al. 1994) •Adapted to a warm climate and stony soil (Beaulieu 2003) •Very drought tolerant (Houtman 2015) |
Acer tataricum
| 3 | −1.68 (±0.12) | −2.86 (±0.11) | 1.19*** | •Prefers sunny, dry situations in forest undergrowth (van Gelderen et al. 1994) •Drought tolerant (Stoecklein 2001) •Tolerate prolonged periods of dry soil (Bassuk et al. 2009) •Drought tolerant (Dirr 2009) •Resistant to drought (Houtman 2015) •Tolerate occasional brief drought but not prolonged dry periods (Flint 1983) •Some drought tolerance (Gilman 1997) •Very adaptable and tolerates most sites (Philips 1993) |
Acer x zoeschense | 3 | −1.28 (±0.07) | −2.84 (±0.18) | 1.57*** | •Tolerate any soil (Houtman 2015) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Aesculus flava
| 6 | −1.49 (±0.04) | −1.58 (±0.04) | 0.09ns | •Prefers a deep, moist, well-drained root run (Dirr 2009) •Good tolerance to hard surfaces (Houtman 2015) •Tolerate drought but prefer wet to moist soil conditions (Hightshoe 1988) •Grows in river valleys and hillsides (Krüssmann 1986) •Occurs naturally in stream valleys and lower slopes (Grimm 2002) •Strongly recommended for dry sandy soils (Mitchell and Jobling 1984) •Moderate drought tolerant (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Betula nigra
| 5 | −2.01 (±0.07) | −2.10 (±0.03) | 0.09ns | •Drought tolerant (Stoecklein 2001) •The heat tolerance is legendary, however, it is not drought tolerant (Dirr 2009) •Originally grows in moist soil, but it also grow in drier locations (Houtman 2015) •Best birch for hot-dry climates, prefer wet to average (Hightshoe 1988) •Tolerate occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerate occasional periods of drought (Trowbridge and Bassuk 2004) •Recommended for moist to wet soils (Krüssmann 1982) •Grows naturally on streambanks and damp grounds although in cultivation it will grow perfectly well in drier habitats (Ashburner and McAllister 2013) •Tolerant to temporary water logging (Gruffydd 1994) •Not recommended for sandy dry soils (Mitchell and Jobling 1984) •Drought sensitive (Gilman 1997) •Dry to wet soil conditions (Mitchell and Coombes 1998) •Most vigorous with ample water but can survive on relatively dry sites once established (Sternberg and Wilson 2004) |
Carya ovata
| 4 | −2.27 (0.06) | −2.78 (±0.03) | 0.51*** | •Prefers rich and well-drained loams, but is adaptable to a wide range of soils (Dirr 2009) •Prefers rich, well-drained soil (Houtman 2015) •Wet to porous droughty granular soils (Hightshoe 1988) •Tolerate occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerate occasional periods of drought (Trowbridge and Bassuk 2004) •Prefer rich and well-drained soils (Grimm 2002) •Not recommended for sandy, dry soils (Mitchell and Jobling 1984) •Some drought tolerance (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) •Very tolerant of most well-drained soils (Sternberg and Wilson 2004) |
Catalpa speciosa
| 6 | −1.77 (±0.04) | −2.34 (±0.11) | 0.57*** | •Drought tolerant (Stoecklein 2001) •Very tolerant of different soil conditions – moist to extremely hot, dry environments (Dirr 2009) •Few soil requirement, not too wet (Houtman 2015) •Wet soils to porous droughty granular soils (Hightshoe 1988) •Tolerate occasional periods of drought (Trowbridge and Bassuk 2004) •Prefer clay (Gruffydd 1994) •Tolerates hot, dry weather (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) •Can survive under very diverse circumstances, including rich and poor soils, alternate flood and drought conditions, full sun or partial shade, and basic or acidic soils (Sternberg and Wilson 2004) |
Celtis occidentalis
| 6 | −1.89 (±0.07) | −2.67 (±0.05) | 0.78*** | •Drought tolerant (Stoecklein 2001) •Prefers rich, moist soils or very dry areas (Dirr 2009) •Few soil requirements (Houtman 2015) •From wet to dry soils (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Recommended for moist to wet soils (Krüssmann 1982) •Prefers rich moist soils, but it often grows on rich, rocky hillsides (Grimm 2002) •Drought tolerant (Gilman 1997) •Excellent drought resistance (Philips 1993) •Will adjust to almost any cultural situation … the best C. occidentalis sites are rich, deep, alluvial soils with neutral to basic pH, adequate moisture, and full sun (Sternberg and Wilson 2004) |
Cercidiphyllum japonicum
| 6 | −2.02 (0.04) | −2.18 (±0.04) | 0.16* | •Soil should be rich, moist and well-drained (Dirr 2009) •Prefers loose loamy soil – not too dry (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Needs consistently moist well-drained soil (Trowbridge and Bassuk 2004) •Recommended for moist to wet soils (Krüssmann 1982) •Moderate drought tolerance (Gilman 1997) •Requires moist soil (Philips 1993) •Deep moisture-retentive loam (Carr 1979) •Moist soil conditions (Mitchell and Coombes 1998) |
Cercis canadensis
| 6 | −1.51 (±0.05) | −2.49 (±0.06) | 0.98*** | •Does exceedingly well in many soil types, except permanently wet ones (Dirr 2009) •Thrives best in fertile locations (Houtman 2015) •Prefers moist, tolerate dry soils (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Moderate to high drought tolerance (Gilman 1997) •Needs well-drained soil yet can tolerate the short-term flooding that occurs along small streams (Sternberg and Wilson 2004) |
Cladrastis kentukea
| 6 | −1.58 (±0.08) | −1.85 (±0.09) | 0.27ns | •Well-drained soil (Dirr 2009) •Clay and sandy soils (Houtman 2015) •Prefers wet to average soil moisture (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Need consistently moist, well-drained soil (Trowbridge and Bassuk 2004) •Prefers clay (Gruffydd 1994) •Moderate drought tolerance (Gilman 1997) •Needs rich soil with good drainage (Philips 1993) •Should have good drainage (Sternberg and Wilson 2004) |
Cornus kousa
| 6 | −1.81 (±0.03) | −2.12 (±0.05) | 0.31*** | •Well-drained soil. More drought resistant than C. florida (Dirr 2009) •Well-drained soil. Tolerate more drought than C. florida (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Prefers well-drained clay-silica soil (Gayraud 2013) •Can tolerate less favorable soil but dry, droughty soil is to pushing the limit (Cappiello and Shadow 2005) •Moderate drought tolerance (Gilman 1997) •Require moist, high-organic soil (Philips 1993) |
Cornus mas
| 6 | −2.74 (±0.10) | −3.03 (±0.02) | 0.29* | •Drought tolerant (Stoecklein 2001) •Adaptable for soil, but prefers rich, well-drained soil (Dirr 2009) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Perfectly adapted to all types of soil – dry, rich, poor, moist etc. (Gayraud 2013) •Takes just about any soil from dry to wet (Cappiello and Shadow 2005) •Moderate drought tolerance (Gilman 1997) |
Corylus colurna
| 5 | −2.00 (±0.06) | −2.56 (±0.08) | 0.57*** | •Drought tolerant (Stoecklein 2001) •Once established, the tree is quite drought tolerant (Dirr 2009) •Drought tolerant (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Recommended as a street tree (Forrest 2006) •Prefers loams (Gruffydd 1994) •Recommended for dry, sandy soils (Mitchell and Jobling 1984) •Drought tolerant (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Eucommia ulmoides
| 6 | −2.49 (±0.04) | −3.03 (±0.08) | 0.54*** | •Drought tolerant (Stoecklein 2001) •Very soil tolerant; resists drought (Dirr 2009) •Tolerates all soil types (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Drought tolerant (Gilman 1997) •Tolerant of most soils and drought (Philips 1993) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Ginkgo biloba
| 6 | −1.80 (±0.06) | −3.45 (±0.10) | 1.65*** | •Drought tolerant (Stoecklein 2001) •Grows in almost any situation (Dirr 2009) •Tolerates all soil types (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Prefer loams, clay, sand (Gruffydd 1994) •Drought tolerant (Gilman 1997) •Adapted to extreme urban environments (Bradshaw et al. 1995) •Requires moist well-drained soil (Philips 1993) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Gymnocladus dioica | 6 | −1.96 (±0.03) | −2.61 (±0.05) | 0.65*** | •Drought tolerant (Stoecklein 2001) •Adaptable to a wide range of conditions, such as drought (Dirr 2009) •Well-drained soil (Houtman 2015) •Prefers wet to average soils (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Extreme drought tolerance (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) •Young trees prefer ample moisture, and a deep, rich alluvial soil (Sternberg and Wilson 2004) |
Halesia monticola
| 5 | −1.60 (±0.08) | −1.74 (±0.02) | 0.14ns | •Prefers rich, well-drained moist soils •Prefers humus-rich, lightly humid soil (Houtman 2015) •Moist to average soils (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Needs consistently moist well-drained soil (Trowbridge and Bassuk 2004) •Drought sensitive (Gilman 1997) •Moist soil conditions (Mitchell and Coombes 1998) |
Juglans nigra
| 6 | −2.03 (±0.06) | −2.32 (±0.05) | 0.29** | •Prefers deep, rich, moist soils – tolerates drier soils but grows much more slowly under these conditions (Dirr 2009) •Prefer nutritious, calcareous, drained soil (Houtman 2015) •Prefers moist, tolerates droughty conditions (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Attains its maximum growth on deep, rich soils, being much smaller on poorer sites (Grimm 2002) •Prefers clay (Gruffydd 1994) •Drought tolerant (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) •Prefers good, fertile, moist, well-drained soil (Sternberg and Wilson 2004) |
Koelreuteria paniculata
| 3 | −1.25 (±0.06) | −3.50 (±0.11) | 2.25*** | •Drought tolerant (Stoecklein 2001) •Adaptable to a wide range of soils; withstand drought (Dirr 2009) •Few soil demands – stands up to dry conditions (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Recommended for sandy, dry to sterile soil (Krüssmann 1982) •Recommended for dry sandy soils (Mitchell and Jobling 1984) •Drought tolerant (Gilman 1997) •Fairly easily satisfied as regards soil (Carr 1979) •Best on good soils, including very dry ones (Mitchell and Coombes 1998) |
Laburnum x watereri | 3 | −1.59 (±0.03) | −2.23 (±0.06) | 0.63*** | •Moist, well-drained soils (Dirr 2009) •Prefers substantial, open and nutritious soil (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Recommended for sandy, dry to sterile soil (Krüssmann 1982) •Tolerates anything except waterlogging (Gruffydd 1994) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Liquidambar styraciflua
| 5 | −1.82 (±0.08) | −2.45 (±0.07) | 0.63** | •In the wild it occurs as a bottomland species on rich, moist, alluvial soils but is found on a great variety of sites (Dirr 2009) •Not resistant to long-lasting dry periods (Houtman 2015) •Prefers moist to average soil (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Recommended for moist to wet soils (Krüssmann 1982) •Intolerant to drought (Gruffydd 1994) •Not recommended for sandy dry soils (Mitchell and Jobling 1984) •Moderate drought tolerance (Gilman 1997) •Flourish on well-drained loam or moist, sandy soils (Carr 1979) •Moist soil conditions (Mitchell and Coombes 1998) •Adaptable to a variety of conditions, preferring deep, moist, acidic soil and full sun … grows more slowly on dry sites or in less idea soil (Sternberg and Wilson 2004) |
Liriodendron tulipifera
| 5 | −1.73 (±0.07) | −2.21 (±0.06) | 0.48** | •Prefers deep, moist, well-drained loam (Dirr 2009) •Humid and rich soil (Houtman 2015) •Prefers moist to average (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Needs consistently moist well-drained soil (Trowbridge and Bassuk 2004) •Recommended for moist to wet soils (Krüssmann 1982) •It prefers a deep, rich, moist soil – it is also occupies the rocky slopes of the mountains (Grimm 2002) •Prefers deep loams, clay (Gruffydd 1994) •Recommended for dry sandy soils (Mitchell and Jobling 1984) •Moderate drought tolerance in humid climates, drought sensitive elsewhere (Gilman 1997) •Thrives on well-drained, deep, rich loams (Carr 1979) •Dry to moist soil conditions (Mitchell and Coombes 1998) •Likes deep, rich, well-drained soil with uniform rainfall (or supplemental irrigation) throughout the growing season (Sternberg and Wilson 2004) |
Magnolia acuminata
| 6 | −1.62 (±0.09) | −2.01 (±0.03) | 0.40** | •Prefers moist to average soil moisture (Hightshoe 1988) •Should be planted into loamy, deep, moist well-drained soil – does not tolerate extreme drought and wetness (Dirr 2009) •Quite a hardy park tree (Krüssmann 1986) •Consistently moist and well-drained (Trowbridge and Bassuk 2004) •Ability to grow in a wide range of soils, but is not tolerant of drought (Gardiner 2000) •Moist and well-drained soil (Leopold 2005) •Prefers moist soil conditions (Flint 1983) •Grows in deciduous woodlands with deep, rich soils on moist slopes along river banks (Nelson et al. 2014) •Grows naturally on the lower slopes along stream banks in deep, rich moist soils (Flint 1985) •Prefers moist, well-drained soil (Stoecklein 2001) •Tolerate all soil types, except alkaline soils (Houtman 2015) •Prefers moist to average (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •It prefers deep, moist, and fertile soils, but is often found on rather rocky slopes (Grimm 2002) •Moderate drought tolerance (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) •Requires deep, moist, well-drained soil … will not take wet soil or drought conditions (Sternberg and Wilson 2004) |
Magnolia salicifolia | 3 | −1.45 (±0.06) | −1.81 (±0.05) | 0.35** | •Native in rocky granite soil by the side of forest streams (Dirr 2009) •Prefers moisture-retentive soil (Gardiner 2000) •Prefers moist soil conditions (Flint 1983) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Prefers clay (Gruffydd 1994) |
Magnolia tripetala
| 4 | −1.57 (±0.08) | −2.04 (±0.08) | 0.47** | •Grows in deep, moist woodsy soils along streams and swamp margins (Dirr 2009) •Prefers humus-rich and moisture-retentive soil (Gardiner 2000) •Moist and well-drained soil (Leopold 2005) •Grows in rich woods, ravine slopes, margins of mountain streams (Nelson et al. 2014) •It grows naturally in deep rich forests. It occurs in moist soils high in humus in protected ravines, along streams (Elias 1989) •Prefer moist, well-drained soil (Stoecklein 2001) •Need fertile, well permeating soil (Houtman 2015) •Demands wet, tolerates dry soils (Hightshoe 1988) |
Nyssa sylvatica
| 6 | −2.01 (±0.05) | −2.36 (±0.05) | 0.35** | •Prefers moist, well-drained deep soils, however, in the wild it is found on dry mountain ridges (Dirr 2009) •Prefers loamy soils, not to dry (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Recommended for moist to wet soils (Krüssmann 1982) •Best development in rich, moist bottomlands, but is often common on dry mountain ridges (Grimm 2002) •Drought tolerant (Gilman 1997) •Requires moist loam (Philips 1993) •Dry to wet soil conditions (Mitchell and Coombes 1998) •Once established is resistant to both drought and short-term flooding (Sternberg and Wilson 2004) |
Ostrya carpinifolia | 3 | −2.50 (±0.08) | −2.88 (±0.07) | 0.38** | •Grows in any soil, even very dry soils (Houtman 2015) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Parottia persica | 5 | −2.48 (±0.04) | −2.68 (±0.05) | 0.20** | •Extremely tolerant once established – withstands drought, heat etc. (Dirr 2009) •Needs well-permeable soil (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Recommended for moist to wet soils (Krüssmann 1982) •Prefer loams (Gruffydd 1994) •Drought tolerant (Gilman 1997) •Tolerant, once established (Philips 1993) •Ideal soil conditions is well-drained sandy loams (Carr 1979) •Moist soil conditions (Mitchell and Coombes 1998) |
Phellodendron amurense
| 5 | −1.95 (±0.06) | −2.73 (±0.04) | 0.78*** | •Drought tolerant (Stoecklein 2001) •Does well in many types of soils e.g. drought (Dirr 2009) •Tolerates all soil types but prefers nutritious, humic soils (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Drought tolerant (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Platanus occidentalis
| 5 | −1.65 (±0.07) | −2.10 (±0.07) | 0.46** | •Prefer rich humid soils (Houtman 2015) •Prefers wet to average (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Characteristically a tree of the bottomlands (Grimm 2002) •Moderate drought tolerance (Gilman 1997) |
Prunus sargentii | 4 | −2.51 (±0.06) | −2.86 (±0.11) | 0.36* | •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Prefer loams (Gruffydd 1994) •Recommended for dry sandy soils (Mitchell and Jobling 1984) •Moderate drought tolerance (Gilman 1997) •Require moist well-drained soil (Philips 1993) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Pyrus calleryana ‘Chanticleer’ | 6 | −2.25 (±0.05) | −3.03 (±0.11) | 0.78** | •Very adaptable to many different soils, tolerates dryness (Dirr 2009) •Places little soil demands (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Recommended for dry sandy soils (Mitchell and Jobling 1984) •Drought tolerant (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Quercus acutissima
| 2 | −1.93 (±0.11) | −3.36 (±0.22) | 1.43** | •Drought tolerant (Stoecklein 2001) •Quite adaptable (Dirr 2009) •Slightly acid and well-drained soil (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Grows better than average on suitable soils (Miller and Lamb 1985) •Not recommended for dry sandy soils (Mitchell and Jobling 1984) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Quercus cerris
| 3 | – | −3.12 (±0.12) | – | •Great adaptability (Dirr 2009) •Prefers calcareous soil (Houtman 2015) •Drought tolerant (Gruffydd 1994) •Recommended for dry sandy soils (Mitchell and Jobling 1984) •Drought tolerant (Gilman 1997) •Adapted to dry calcareous soils (Bradshaw et al. 1995) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Quercus frainetto
| 3 | −1.83 (±0.06) | −3.06 (±0.05) | 1.23*** | •Prefers nutritious loamy soil (Houtman 2015) •Fast growing park tree (Krüssmann 1986) •A drought and frost tolerant species (Menitsky 2005) •Prefer sandy loams, clay (Gruffydd 1994) •Recommended for dry sandy soils (Mitchell and Jobling 1984) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Quercus muehlenbergii
| 4 | −2.63 (±0.06) | −3.00 (±0.07) | 0.36* | •Is found in the wild on dry limestone outcrops – prefers rich bottomlands and there attains its greatest size (Dirr 2009) •Tolerates dry to droughty (Hightshoe 1988) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Considered a climax-species on dry droughty soils, and subclimax on moist sites (Miller and Lamb 1985) •Attains its greatest size on rich soils of the bottomlands – eastern distribution of the species occupies dry hillsides (Grimm 2002) •Drought tolerant (Gilman 1997) |
Stewartia pseudocamelia | 5 | −1.56 (±0.03) | −1.31 (±0.02) | 0.25*** | •Prefers moist (not too wet) peaty soil (Houtman 2015) •Tolerate occasional brief drought but not prolonged dry periods (Flint 1983) •Needs consistently moist well-drained soil (Trowbridge and Bassuk 2004) •Moderate drought tolerance (Gilman 1997) •Moist soil conditions (Mitchell and Coombes 1998) |
Syringa reticulata
| 6 | −2.12 (±0.07) | −3.45 (±0.13) | 1.33*** | •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Thrives in rich, well-drained soils (Fiala 2008) •Moderate drought tolerance (Gilman 1997) |
Tilia americana
| 5 | −2.16 (±0.06) | −2.47 (±0.03) | 0.31** | •Prefers deep, moist fertile soils … but will grow on drier heavier soils (Dirr 2009) •Have few demands, not on soil that is too dry (Houtman 2015) •Prefers moist to average (Hightshoe 1988) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Attains a large size on deep, moist soils (Bean 1980) •The preferred habitat is bottomlands, where the soils are deep, moist and fertile (Grimm 2002) •Moderate drought tolerant (Gilman 1997) •Moist soil conditions (Mitchell and Coombes 1998) •Will not perform well as a landscape tree, unless given deep, moist soil (Sternberg and Wilson 2004) |
Tilia tomentosa
| 3 | −1.72 (±0.08) | −2.73 (±0.04) | 1.01*** | •Drought tolerant (Stoecklein 2001) •Good street tree as it tolerates heat and drought better than other lindens (Dirr 2009) •Tolerates dry conditions (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •The species grows normally in well-drained soils that remain moist during summer (Pigott 2012) •Prefers clay (Gruffydd 1994) •Moderate drought tolerance (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Ulmus parvifolia
| 5 | −1.92 (±0.06) | −2.69 (±0.04) | 0.77*** | •Shows excellent urban soil tolerance (Dirr 2009) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates prolonged periods of dry soil (Trowbridge and Bassuk 2004) •Recommended for dry, sandy soils (Mitchell and Jobling 1984) •Drought tolerant (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) |
Zelkova serrata
| 6 | −2.56 (±0.12) | −2.84 (±0.04) | 0.28ns | •Drought tolerant (Stoecklein 2001) •Once established, very wind and drought tolerant (Dirr 2009) •Humus, moist, loamy soil (Houtman 2015) •Tolerates occasional brief drought but not prolonged dry periods (Flint 1983) •Tolerates occasional periods of drought (Trowbridge and Bassuk 2004) •Grows particularly well on rich, moist soils, although it can also develop in drier environments and under poorer soils conditions (Kozlowski and Gratzfeld 2013) •Not recommended for dry sandy soils (Mitchell and Jobling 1984) •Drought tolerant (Gilman 1997) •Dry to moist soil conditions (Mitchell and Coombes 1998) |