Table S4.

Foliar nutrient analysis data for each representative boxwood cultivar used in this study at peak winter color change (February 2021) and after foliage largely reverted to green pigments (July 2021). N (nitrogen); S (sulfur); P (phosphorus); K (potassium); Mg (magnesium); Ca (calcium); Na (sodium); B (boron); Zn (zinc); Mn (manganese); Fe (iron); Cu (copper); AI (aluminum).

SpeciesCultivarDateN
(%)
S
(%)
P
(%)
K
(%)
Mg
(%)
Ca
(%)
Na
(%)
B
(ppm)
Zn
(ppm)
Mn
(ppm)
Fe
(ppm)
Cu
(ppm)
Al
sempervirensAmerican2/21/20211.230.090.070.330.170.920.01191421100442
sempervirensArtic Emerald2/21/20211.940.160.140.860.221.210.0129212451429
sempervirensAurea-Pendula2/21/20212.370.170.230.880.210.90.01262164113447
balnarirabalearice2/21/20212.770.190.250.530.441.420.0141321246421
microphyllaBorderline2/21/20212.210.190.170.820.220.940.0129218279523
sempervirensBuddy2/21/20211.610.140.110.750.21.030.022222231313273
hybridChicagoland Green2/21/20212.230.130.160.460.261.150.0121241964633
sempervirensDee Runk2/21/20211.530.170.170.770.41.140.01301923103436
sempervirensElegantissima2/21/20212.770.150.270.840.280.920.0122362097937
sempervirensFatigiata2/21/20211.420.170.20.820.391.510.0126193188646
sinica var. insularis Franklin’s Gem2/21/20212.760.150.140.60.231.30.0123305578744
microphylla Golden Dream2/21/20212.450.180.181.150.191.260.0123226798634
hybridGordo Conroe2/21/20212.440.140.190.610.391.10.0127252356629
microphylla Grace Hendricks Phillips2/21/20212.650.170.180.640.170.830.0118231650811
sempervirensGraham Blandy2/21/20212.070.20.160.870.220.90.0120252370339
microphylla Green Beauty2/21/20212.730.170.140.510.251.30.01232495110629
hybridGreen Mound2/21/20211.830.120.120.510.281.410.01221745149672
hybridGreen Mountain2/21/20212.020.150.20.470.321.660.0123162160533
microphylla Green Pillow2/21/20212.50.130.160.750.130.850.0118162551715
hybridGreen Velvet2/21/20211.970.110.140.680.230.820.01243468105722
harlandii harlandii 2/21/20212.850.210.230.650.311.670.013739134115779
microphylla Jim Stauffer2/21/20212.570.210.180.580.311.750.0124226690350
microphylla John Baldwin2/21/20212.190.240.160.710.211.210.0137271850628
sempervirensJustin Brouwers2/21/20212.310.150.210.650.270.990.0121393171574
microphylla Korean2/21/20212.230.140.160.620.231.150.0120207899522
microphylla Little Missy2/21/20212.590.180.160.570.181.250.0122254065924
sempervirensLongwood2/21/20212.480.170.210.640.310.0117343873616
microphylla Morris Dwarf2/21/20212.480.220.130.580.140.950.0116172669743
microphylla Morris Midget2/21/20212.760.20.160.60.170.950.0116193161710
sinica var. insularis Nana2/21/20212.820.150.220.470.321.270.0129302975628
sempervirensPiney Mountain2/21/20211.550.170.120.580.271.30.01161821105441
harlandii Richard2/21/20212.430.210.190.790.351.920.013731131104642
sempervirensRotundifolia2/21/20212.120.20.210.790.260.980.0128372989954
sempervirensTall Boy2/21/20211.640.160.280.970.4610.0231207485448
sinica var. insularis Tide Hill2/21/20212.230.160.120.730.251.220.0123275375631
sempervirens Vardar Valley2/21/20211.80.170.10.480.211.380.0135213480542
sempervirens Variegata2/21/20212.720.150.270.980.260.870.01223937109640
sempervirens Waterfall2/21/20212.040.180.150.970.230.680.0124247178329
microphylla Winter Gem2/21/20211.870.150.130.690.211.350.01241895245724
sempervirens American7/23/20211.970.210.160.950.261.450.012444451591363
sempervirens Artic Emerald7/23/20212.360.240.221.60.271.430.01252712996916
sempervirens Aurea-Pendula7/23/20212.510.220.261.530.291.440.012734541141040
balearica balearica 7/23/20212.580.20.180.810.331.080.0131302267630
microphylla Borderline7/23/20212.780.230.221.860.281.70.01322270971028
sempervirens Buddy7/23/20211.750.160.120.620.281.380.012524371537191
hybridChicagoland Green7/23/20212.340.160.170.70.291.170.0118264072820
sempervirens Dee Runk7/23/20212.030.220.241.180.431.620.01333165188854
sempervirens Elegantissima7/23/20212.330.160.231.160.261.070.012029301291045
sempervirens Fatigiata7/23/20211.710.190.190.740.361.250.01242240114558
sinica var. insularis Franklin’s Gem7/23/20212.660.190.171.220.261.340.012435501291349
hybridFreedom7/23/20212.70.250.21.090.321.770.0130343893830
microphylla Golden Dream7/23/20212.570.190.171.340.261.280.01222558841123
hybridGordo Conroe7/23/20212.290.150.190.770.411.210.0123253988856
microphylla Grace Hendricks Phillips7/23/20212.240.190.191.120.281.240.01192540901244
sempervirens Graham Blandy7/23/20211.940.170.1810.271.030.01232946124840
microphylla Green Beauty7/23/20212.740.190.191.10.251.470.01212872791229
hybridGreen Mound7/23/20212.230.180.171.170.291.270.01222649961132
hybridGreen Mountain7/23/20212.180.170.151.030.251.320.01201754751038
microphylla Green Pillow7/23/20212.650.230.221.420.241.540.01233166761334
hybridGreen Velvet7/23/20212.060.150.141.010.271.240.0122226199929
harlandii harlandii 7/23/20212.770.220.220.980.392.040.01343012761841
hybridIndependence7/23/20212.650.210.191.30.321.510.0117261101361242
microphylla Jim Stauffer7/23/20212.650.230.231.280.332.040.0225321081021232
microphylla John Baldwin7/23/20212.670.210.180.730.331.570.0125297272938
sempervirens Justin Brouwers7/23/20213.290.250.221.730.351.640.012432461241040
microphylla Korean7/23/20212.540.190.191.290.261.440.01252376801225
microphylla Little Missy7/23/20212.30.180.171.080.221.440.01213666801125
sempervirens Longwood7/23/20212.570.190.211.440.371.840.012338871171240
microphylla Morris Dwarf7/23/20212.460.180.171.320.181.120.01172546581012
microphylla Morris Midget7/23/20212.280.180.181.230.181.070.0115183858814
sinica var. insularis Nana7/23/20212.180.160.171.280.231.240.0116357863921
hybridNicholson7/23/20212.320.180.171.060.241.240.01232855901136
sempervirens Piney Mountain7/23/20212.320.260.20.90.391.670.01252844198972
harlandii Richard7/23/20212.380.180.181.760.342.150.012938931011235
sempervirens Rotundifolia7/23/20212.050.180.160.970.251.080.0124273697735
sempervirens Tall Boy7/23/20212.070.170.20.920.380.990.01242861102756
sinica var. insularis Tide Hill7/23/20212.630.20.181.40.31.480.01254557961240
sempervirens Vardar Valley7/23/20212.640.190.181.190.271.310.011932811211328
sempervirens Variegata7/23/20212.590.220.231.220.261.250.012544391041031
sempervirens Waterfall7/23/20212.270.20.191.370.261.260.012534581091240
microphylla Winter Gem7/23/20211.890.180.1310.241.680.0124208998831