Manual of Riyadh Plants

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Part 3: Planning checklists for quick reference
364
A Winter colour display
Plants recommended for ornamental effects in winter borders of
annuals and seasonal displays.
A annual
Amaranthus tricolor , 0.6-0.8 m, white, light green................................... 51
Calendula officinalis , 0.3-0.6 m, yellow, orange, brown, red.............. 76
Celosia argentea ssp. plumosa , 0.2-1 m, red, orange, yellow,
magenta................................................................................................................................................................................................................................................ 92
Iresine herbstii , 0.6-1 m, white............................................................................................................................. 166
Lobelia erinus , 0.1-0.4 m, violet, blue............................................................................................ 192
Lobularia maritima , 0.05-0.15 m, white, lilac, violet...................... 193
Pelargonium x hortorum , 0.3-0.9 m, white, pink, red, purple...................... 222
Petunia x atkinsiana , 0.15-0.25 m, yellow, red, purple, pink,
violet, blue, white, secondary: yellow.............................................................................................. 228
Portulaca grandiflora , 0.1-0.15 m, yellow, white, pink, red,
violet, purple, yellow.............................................................................................................................................................................242
Portulaca umbraticola , 0.05-0.15 m, red, centre: yellow...... 243
Tropaeolum majus , 0.2-2 m, orange.................................................................................................... 306
Zinnia elegans , 0.3-1 m, yellow, orange, red............................................................. 319
A biennial
Alcea rosea , 0.8-2.2 m, pink, white, violet............................................................................. 45
Antirrhinum majus , 0.2-1 m, yellow, pink, red, white, orange,
secondary: yellow................................................................................................................................................................................................................ 53
A perennial
Canna indica ‘Red King Humbert’ , 1-1.5 m, red, deep orange............... 81
Catharanthus roseus , 0.15-0.2 m, pink, white, purple...................... 91
Gazania rigens var. rigens , 0.15-0.3 m, yellow, orange.............. 156
Pelargonium crispum , 0.5-0.9 m, pink........................................................................................ 223
Senecio cineraria , 0.15-1 m, yellow........................................................................................................ 278
Verbena tenuisecta , 0.1-0.15 m, purple..................................................................................... 307
A sub-shrub
Asclepias curassavica , 1 m, white....................................................................................................................... 58
Cassia italica , 0.5-0.6 m, yellow............................................................................................................................... 88
Pelargonium graveolens , 0.4-1 m, soft lilac, soft violet........... 224
Pentas lanceolata , 1-1.2 m, white, pink, lilac, red, purple.............. 227
A shrub
Jacquemontia pentantha , 2 m, blue....................................................................................................... 170
Ricinus communis , 2-4 m, red, brown, pink............................................................ 258
A Colours of flowers of various trees and shrubs
Flowering trees with huge blossoms are often non-native, but flow-
ering native trees also make a beautiful impression in parks and
gardens.
A blue
Duranta erecta , 1.5-6 m, light blue, light lilac..................................................... 131
Jacaranda mimosifolia , 10-20 m, light blue, secondary:
light lilac...................................................................................................................................................................................................................................... 169
Jacquemontia pentantha , 2 m, blue....................................................................................................... 170
Plumbago auriculata , 4-6 m, light blue...................................................................................... 238
Zilla spinosa , 0.6 m, pale blue, pale violet........................................................................ 318
A green
Casuarina equisetifolia , 10-30 m, light green.............................................................. 90
Cestrum parqui , 2-3 m, pale green............................................................................................................... 98