Clivia x kewensis 'Vico Yellow'
This rendering shows the
outer portions of the petals and sepals lighter relative to the throat
than they are in reality.
Picture by Miyoshi & Co.
Clivia miniata, Regel, var. flava, Phillips, var. nov. is described and
illustrated in "Flowering Plants of South Africa' 11 (1931) and
corresponds with No.8724 in the National Herbarium at Pretoria, South
Africa. It was stated to differ from typical Clivia miniata only in having
yellow flowers. (Note: Evidently the yellow capsules escaped attention in
the description.) A yellow Clivia had in fact been cultivated in Natal
since 1888 if not earlier. Two specimens of this plant from Zululand were sent to England in 1925, one
going to Kew and the other to Lord Wakehurst. These were the typical yellow
flowered Clivia in cultivation in South Africa up to the present time and
corresponding with the type description. Both plants flowered, set seed,
and
subsequently died. It is curious that, once again, no mention is made of
the
fact that the seed capsules of this plant were bright yellow, instead of
the
orange colour of typical C. miniata. By what turned out to be good fortune, the Kew plant of C. miniata var.
flava (sometimes called var. citrina) grew in the open greenhouse with
plants of typical C. miniata. After setting seed it died as mentioned
above,
from causes unknown. The resulting seedlings were hybrids, none of them
being pure yellow. The notable Kew Magnolia hybridist Charles Raffill, set
about breeding back to restore a pure yellow Clivia and after a number of
years he succeeded. This plant was named Clivia x Kewensis 'Cream'. In 1971 I obtained a plant of Clivia x Kewensis 'Cream', and plants of C. x
Kewensis 'A' and 'B', both the latter being Raffill seedlings from the same
cross as 'Cream', but both orange in colour. All the resulting plants had
significantly larger florets than typical C. miniata and much larger than
those of the var. flava (citrina), as well as larger flower heads. In 1972 I cross pollinated these three plants and raised a great many
seedlings, more than I could accommodate in my greenhouse. Some were
potted on and flowered. All were varying shades of orange, almost all with
a
substantially larger yellow zone at the centre of the floret, and all with
larger rounded petals. All had orange-red seed capsules. They were good
plants, a long improvement on typical C. miniata. My plant of the Raffill
'Cream' selection unaccountably died, the third such death of a yellow
Clivia in this story. When I had long ago given up hope of obtaining a yellow seedling, one
suddenly flowered under the greenhouse stage, amongst the seedlings
'discarded'. It had large rounded florets, was considerably more yellow
than
'cream' and it carried bright yellow seed capsules. I was pleased with the
plant but not unduly excited. A piece of it was sent to Dr. Shuichi Hirao
in
Japan, who returned to me a piece of his yellow Clivia, typical C. miniata
var. flava. I discarded it as very inferior. I was then startled to receive
a copy of Japan Horticulture in which my yellow Clivia was the cover
feature. Perhaps the plant was more significant that I had thought. Shu Hirao then died, sadly and prematurely. He was one of the best
plantsmen
of our time. I heard no more of my Clivia until I received a letter from
Yoshikazu Nakamura, at Clivia Breeding Plantation in Mobara City, Chiba
Prefecture, Japan. He would like permission to breed from " 'Smithers
Yellow', world's best yellow Clivia, the one to beat'. Well! Well! Of
course
he was free to do what he liked with it, provided that it was named 'Vico
Yellow'. As such it has been micropagated by Miyoshi & Co., in Tokyo, and
widely distributed in Japan in the trade, though it appears that I was late
in my naming and that the plant still sometimes circulates to this day as
'Smithers Yellow'. Some three years later a second yellow seedling flowered for the first
time.
It seemed to me to be so similar to 'Vico Yellow' that it was not
horticulturally significant. However, as it was genetically distinct I
named
it 'Vico Gold' and sent a plant to Yoshikazu Nakamura. After growing it for
some time he has identified significant differences from 'Vico Yellow' and
he is using it for a parallel breeding program. It might be thought from the three deaths of key plants in this story that
the yellow Clivias have a weaker constitution that the typical plant.
However after twenty-five years experience of growing them, I cannot
detect any difference in growth habit and stamina from typical
C. miniata. Plants of various C. Kewensis seedlings were sent to Lord Aberconway at
Bodnant some years ago, and Charles Puddle the garden manager raised a
number of seedlings which are therefore C. x Kewensis hybrids. One of these
is said to be a very fine yellow, though I have not myself seen it. A plant
of 'Vico Yellow' was sent by me to Bodnant and acknowledged. Professor
Koopowitz tells me that he has received a plant of the Bodnant yellow, and
as a plant of 'Vico Yellow' is going to him, it may be possible to make a
direct comparison of the two. Bodnant have not come forward with any
results of the comparison which they presumably made. Perhaps after all
the Bodnant plant will be 'the one to beat'. Success well deserved is of course gratifying, but nothing is more
gratifying than success which is totally undeserved and therefore equally
unexpected. I am afraid that my Clivia breeding falls into this category:
pollen dabbing.
Peter Smithers
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