Lilies and Related Plants - RHS Lily Group

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Lilium ledebourii seeds. A growing seed of Lilium ledebourii. difficult to see what was under them. This made finding lilies, or evidence of lilies, very difficult. The top soil around the main stems of the trees is made of decayed leaves and grasses and is very well drained, like cocopeat wool or peatmoss wool, and the underground soil is heavy and tangled with the roots of trees. The bulbs occur at quite a shallow depth, i.e. about 5cm deep, in heavy soil. This is overlaid with about 10cm of a top soil/mulch of decayed leaves and grasses. My colleague and I found several bulbs, of good size, under the trees and dug up nine bulbs in total. The bulbs had thin scales which were clean and white with no signs of disease. We were surprised that no underground stem bulblets were found around the mature bulbs. Each bulb was growing in its own location with some distance separating each bulb. This suggests the bulbs grew from seed, i.e. were not asexually propagated. The absence of stem bulblets would also point to seed as the source of natural propagation. The seed capsules we found were black and wet (because of rainy weather). The capsules contained about 100 seeds with good embryos and only a little chaff. The seed germination, of Lilium ledebourii, is delayed hypogeal. Note: Different conditions may induce plants to do something they don’t do naturally, so Lilium ledebourii may be able to produce stem bulblets in different growing conditions. Hence, further research is needed to learn more about the ways in which this species propagates itself (in cultivation and in nature). The climatic conditions in which Lilium ledebourii grows The climate in Lilium ledebourii’s natural habitat is as follows: • spring conditions vary, i.e. it can be cold, cool and wet, or dry; • summer months are very dry; • autumn can be cool or cold and, depending on rainfall, may be wet or dry; 111
Habitat of Lilium ledebourii. 112 • winter is either cold or very cold, with snow cover of one to two metres, but the covering of trees protects the lily bulbs from very heavy snow. The natural habitat of Lilium ledebourii Lilium ledebourii grows in forests under a covering of short trees. The possible reasons for this lily occurring in this type of habitat are as follows: • All Lilium ledebourii plants are seed grown and seeds need a humid and shaded location that protects them from direct sunlight and also enables them to germinate and short trees provide these conditions for Lilium seeds to germinate. • Lilium ledebourii needs a shaded location and can’t survive in direct hot sunlight, except at high altitude, i.e. 1000m above sea level. • Wild animals, e.g. boar, eat their bulbs or damage plants when Lilium grow in exposed, unprotected areas. • Lilium ledebourii is not heat tolerant during the hot summer outside the forest. Cultivating Lilium ledebourii in gardens should provide more infomation about the conditions this lily prefers. Concluding remarks The reason for writing this article has been to provide readers with information about a rare and exceptional lily, Lilium ledebourii, which grows in Ardabil province, in north west Iran, and only a few other places. By describing the conditions this lily prefers I hope readers will be able to grow it, so they can admire its beauty and help to keep it in cultivation around the world. ★ ★ ★
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LILIES and Related Plants 2011-2012
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Lilies and Related Plants Published
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Royal Horticultural Society Lily Gr
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Contents Lilies of the Julian Alps
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Dr Nuala Sterling, a niece of the m
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4 3. Ping beimu from Fritillaria us
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Fritillaria ferganensis Fritillaria
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Fritillaria ussuriensis Fritillaria
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sometimes all pale yellow. Nectary
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the seedlings. However, the cross r
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Figure 3. Seedlings in 5 inch pots
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Figure 7. Left, the 7 th seedling t
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18 David Parsons and his wife Mary.
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Sandy Best, a well-known Canadian p
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Lilium polyphyllum phenological stu
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sites were marked and 10 individual
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Close up of Lilium polyphyllum flow
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ground bulb at different phenophase
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John Muir’s eloquent description
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three years before its dainty bells
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orange and red-orange at varying lo
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Lilium bulbiferum var. chaixii Lili
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grow them, the following year the r
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40 Disease control Perhaps in moder
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colonies, are being made on a yearl
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the first plant having bloomed out
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there was a tiny seed on top of a c
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squill (which he noted as S. bifoli
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Lilium canadense hybrid. L. martago
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Above, Lilium cernuum, same species
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Nomocharis gongshanensis Y. D. Gao
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photograph © Yun-Dong Gao Nomochar
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above southernmost distributional l
Page 67 and 68: Lilium rubellum on Gorin-Daira, Shi
Page 69 and 70: Above , Example flowers of the natu
Page 71 and 72: Above, Stable Lilium japonicum popu
Page 73 and 74: First there was the Rose Phase. I d
Page 75 and 76: A group of Lilium carniolicum in th
Page 77 and 78: throw stones to attract my quarry
Page 79 and 80: a week or two away from flowering.
Page 81 and 82: 74 Timothy Whiteley, OBE, DL, JP Ca
Page 83 and 84: unning a hunt supporters club and C
Page 85 and 86: 78 The beginnings of a national col
Page 87 and 88: ‘Angela’ ‘Rosemary’ collect
Page 89 and 90: supplemented with a section of non
Page 91 and 92: 6 Chinese lilies (Ch) from species
Page 93 and 94: ecause they looked alike. In the mo
Page 95 and 96: stands out is that the tepals do no
Page 97 and 98: Above, Prosartes hookeri two year o
Page 99 and 100: and flowers dangle. Streptopus, or
Page 101 and 102: ich soil in deciduous forests at lo
Page 103 and 104: Lilium mackliniae 96 A guide to bas
Page 105 and 106: A Ryirube hybrid Lilium primulinum
Page 107 and 108: lily and does well in my garden. I
Page 109 and 110: Lily seed Lily seed is transparent
Page 111 and 112: Mike Kune and Wade Hall (right) sco
Page 113 and 114: Lilium pyrophilum bulbs. divided in
Page 115 and 116: 108 In search of Lilium ledebourii
Page 117: A bulb and scales of Lilium ledebou
Page 121 and 122: Lilium duchartrei situations was no
Page 123 and 124: Fritillaria affinis 91 albidiflora
Page 125: 118 Guidelines for authors Contribu
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Lilies and Related Plants - RHS Lily Group

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